Slashdot Mirror


Ask Slashdot: What Would Real Space Combat Look Like?

c0mpliant writes "Two friends and I were up until the wee hours of the morning over the weekend debating what real space combat would look like. I've spent some time looking it up online, and there doesn't seem to be any general consensus. So, I thought I'd ask a community of peers what they think. Given our current technology and potential near-future technology, what would a future space battlefield look like? Would capital ships rule the day? Would there be equivalents of cruisers, fighters and bombers, or would it be a mix of them all?"

892 comments

  1. Laser Beams by busyqth · · Score: 2

    Laser Beams.
    That's all.

    1. Re:Laser Beams by Anonymous Coward · · Score: 0

      Laser Beams.

      That's all.

      my mirror shields will take the day

    2. Re:Laser Beams by zero.kalvin · · Score: 1

      Quantum torpedoes, tetryon beam weapons, metaphasic shields and some neutronium hull plating... Wait a second, I thought this was a Star trek episode!

    3. Re:Laser Beams by zugmeister · · Score: 3, Funny

      But... But... Where do you put the sharks?

      Had to say it.

    4. Re:Laser Beams by Dyinobal · · Score: 2

      I have to agree Lasers make the most since if you're fighting at any distance in space, that is unless you have some sort of weapon that travels faster than light by even a small magnitude. Though the Honor Harrington series does make interesting use of missiles and small fighter craft.

    5. Re:Laser Beams by exploder · · Score: 5, Insightful

      Laser Beams.

      That's all.

      my mirror shields will take the day

      I think this exchange about sums it up. Your great-great-...-great-grandparents could have sat around 150 years ago wondering what air combat would be like. With hindsight we know that the relative strengths of propulsion, maneuvering, aiming, homing, countermeasures, and automation have been constantly changing, with the result that air combat has looked different in each successive war.

      There's no reason to think that the qualitative nature of space combat wouldn't change just as drastically as the eternal arms race continued. Of course, that doesn't mean it's not fun to think about or that there's nothing meaningful that can be said. The exercise is to make a few essentially arbitrary assumptions about available tech, and then try to extrapolate consistently to their implications. AKA writing sci-fi, minus the character development. AKA writing sci-fi.

      --
      Yo dawg, I heard you like the Ackermann function, so OH GOD OH GOD OH GOD
    6. Re:Laser Beams by Peristaltic · · Score: 4, Interesting

      Or ablative shielding, or maybe even spray dust down the anticipated threat axis. If the enemy laser emits visible light and you have an idea of the laser's frequency, maybe coat the dust particles with something of the same color, or spray multi-colored dust if you don't.

    7. Re:Laser Beams by zero.kalvin · · Score: 2

      Highly unlikely! reflecting materials can defeat it. Most likely MASER's http://en.wikipedia.org/wiki/Maser , kinetic weapons for fast attacks, and nuclear weapons for more destruction.

    8. Re:Laser Beams by durrr · · Score: 5, Interesting

      No such thing as perfect wide spectrum mirrors. Even with massive heatsinking they'll burn out as soon as anything worth the title of a space combat grade pulse lasers winks at them.
      As for capital ships, unlikely, they are too big targets and no amount of armor will really prevent a dedicate enemy from putting peppering them with hyperkinetic pinballs.

      Barring exotic supertechs spaceships would probably operate on the basis of being relatively small vessels, axial gunmounts with minimal cross section towards the enemies, very powerfull lateral engines and heavily networked to sensor and targeting grids to allow them to simply strafe to whatever tiny safe zone the sensor grid suggests is availible from that metric fuckton of spacegravel coming your way at 120km/s.
      As for lasers, sure, they might work at short distances. but as soon as you can do a random walk flight and escape the beam targeting due to the 0,6second light-lag they too turn rather inefficient.

      My vision of space combat is rather few ships, but very nasty and advanced supermunitions to blow the shit out of the enemy staging area/home base, and some additional to clear any ships or large munitions passing in the no-mans-land that is the cold black vacuum.

    9. Re:Laser Beams by wagnerrp · · Score: 2

      Mirrors are not perfect reflectors. Pump enough heat into a sufficiently small area, and you will destroy the mirror and breach the protection. Mirrors are only good over a certain frequency range. Use a free electron laser such that you can modulate the frequency to whatever you please, and you can choose one that will heat the mirror will heat up much faster. The higher reflectivity your mirror, the more fragile it tends to be. Use a relativistic particle beam instead, and the mirror is useless.

    10. Re:Laser Beams by AK+Marc · · Score: 1

      If your ship is 100% covered in perfect mirrors, then you'll never be able to fire back, or even see where you are going.

    11. Re:Laser Beams by zero.kalvin · · Score: 1

      Wait Masers wasn't what I was looking for... I was going for charged particles, like a super LHC beam or something.

    12. Re:Laser Beams by Anonymous Coward · · Score: 0

      Don't forget space-sharks.

    13. Re:Laser Beams by durrr · · Score: 5, Funny

      Clearly, air combat will be fought with swords attached to the wingtips of your ornitopther because not only are reloading unfeasible mid flight, guns are also too heavy and unfit to hit agile targets such as winged men.

    14. Re:Laser Beams by mspohr · · Score: 1

      ... and sharks!

      --
      I don't read your sig. Why are you reading mine?
    15. Re:Laser Beams by noh8rz2 · · Score: 3, Interesting

      If your ship is 100% covered in perfect mirrors, then you'll never be able to fire back, or even see where you are going.

      that's why they're 100% perfect two-way mirrors. like on law and order.

    16. Re:Laser Beams by Rei · · Score: 4, Insightful

      So if you're envisioning combat to be far enough away that the light speed delay poses a problem, exactly what weapon are you envisioning that *doesn't* have this problem? If light is too slow.... Plus, if you're that far away, you're not going to be closing in on each other worth a flip. You've got plenty of time for your system to make guesses about how the target is going to move; it'll nail them sooner or later. And if you think running that laser takes a lot of power/fuel/whatever, what do you think rapidly changing the trajectory of an entire spacecraft for days on end (enough to move it out of the path of a laser in under 0.6 seconds) will consume? The reality is that if you're far enough away that light is too slow, then your combat will just be conducted closer.

      Sooner or later nuclear weapons or similar would become part of space combat. There's so much empty space, true high population space colonies are so far off, and it's easy enough to set "no nukes near planets" as a MAD boundary, it seems it's going to happen. Aka, even if not a conventional nuclear weapon, with the increasing energy density demands required by space propulsion, you'll at least end up with something similar. They impose interesting constraints on space combat, as they're very different from on the ground. Almost no pressure wave, but the radiation threat is dramatically greater (nothing absorbs it and harder to block it in space)

      Combat would presumably be a "you're on your own" thing. Reinforcements would take *way* too long to arrive except perhaps right near a planet or base. Space is just really, really big and most of your time in space, you're drifting or providing a constant accel.

      Since all combat seems to be heading this way anyway, one might as well just say: Drones. Due to the light speed delay, they'd have to be much more automated, but again, we're headed that way anyway. Carrying around a person and a life support system is a *huge* mass and complexity penalty.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    17. Re:Laser Beams by KDR_11k · · Score: 3, Interesting

      To dodge a laser you need to alter your trajectory enough that none of your vessel's body is where it would be without acceleration after the transmission time. Also you need to alter your acceleration vector often enough that you aren't predictable enough and you assume that lasers cannot be fired often enough that an enemy could just saturate the area around you with shots to get some hits in.

      Lasers have the massive advantage of lacking recoil, using kinetics will shake your craft around and likely spread your shots more than you'd want them to for proper target saturation. Their slower movement also means that you'll need even more shots at .6 lightseconds (that's 180 million meters!) to land a significant number of hits and you'll need to scale down their individual power accordingly. I don't think you'll be able to use kinetics past a few kilometers of distance and I don't think you'll be able to get them to 120 km/s (actio = reactio, remember). Hell, the recoil from firing those bullets would be enough to kill any human crew on the vessel and even then your shots take half an hour to cross the .6 lightseconds that you put on the laser fight.

      If you can build a laser with enough power, focal distance and cooling to do significant damage at .6 lightseconds you're going to mop the floor with anyone attempting to use kinetics at that range.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    18. Re:Laser Beams by Anonymous Coward · · Score: 0

      You need relatively small sized penetration to make large parts of a space-thing uninhabitable. So you need very very fast moving, relatively small diameter (probably sub 1cm in diameter) with high penetration... I'm thinking rail gun.

    19. Re:Laser Beams by hawguy · · Score: 5, Funny

      Laser Beams.

      That's all.

      my mirror shields will take the day

      Laser shots would be preceded by a barrage of Gummi Bears to stick to your shields and absorb the laser energy. Haribo's stock will soar due to military Gummi Bear purchases and they will become the largest and most wealthy company in the universe. Even larger than MicrAppleSoft who supplies the PADD handhelds for the fleet.

    20. Re:Laser Beams by lennier · · Score: 1

      But... But... Where do you put the sharks?

      Inside cute li'l spacesuits, of course.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    21. Re:Laser Beams by AK+Marc · · Score: 3, Interesting

      Small chemically propelled shells with guidance would need to accompany the lasers. If you have a 100% uniform attack, effective defenses will be created. So even if they aren't the most effective, variety would be needed to maintain effectiveness. Something more like guided artillery than true missiles, though torpedo-type missiles would likely see some application, as sling-shotting them around a planet while the main attack is from the other side would probably be an effective technique.

      Given game theory, the answer to this question is to make a game like Eve Online where you encourage space battles and allow more free-form creating of weapons. Then the game will be the answer, presuming the parameters are accurate and open enough. But most space games assume "instantaneous" for light speed, as that's easiest. And games usually limit creativity in creating new weapons (making cluster bombs, tactical nukes, "smart" shells, such as detection-shielded mines with directional capabilities for closing in once close enough) and weapons designed to target secondary and tertiary systems (using a tac-nuke to cause an EMP, and following that up with a barrage of other weapons while electronics are down. Or just overloading sensors with the radiation from the blast. Not to mention the finer points of zero-g combat are almost inconceivable with the maneuverability and such.

    22. Re:Laser Beams by Anonymous Coward · · Score: 0

      Faster than light:
      Cern neutrino weapon !
      That sould be frightening ^^
      But i'm not sure it will be efficient

    23. Re:Laser Beams by Rei · · Score: 3

      There are, of course, additional complexities to using lasers in space -- no show stoppers, though. The Soviets experimented with a high power chemical laser system in space. The one of the many advantages of chemical lasers is that much of the waste heat (which all high powered lasers generate in droves -- think of how much heat you want to impart to your target, now multiply it by 3-10x for laser losses and more for losses during transit) is carried off in the exhaust; they're really kind of like rocket engines. But in that regard, they also provide thrust like a rocket engine. So you have to carefully and very precisely cancel out the thrust provided by the laser when it's in operation. The exhaust also gives away your position and it's chemical signature makes obvious what you're doing (the Soviets went to great lengths to disguise the fact that they were testing a laser).

      Still, laser weapons in space are an obvious choice. No need for deuterium-fluoride lasers or anything of that nature, either, since atmospheric absorption isn't an issue. Even when it comes to missiles, due to the tremendous relative speeds involved, even missiles themselves would likely just be drones that carry lasers or other equivalent weaponry.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    24. Re:Laser Beams by queazocotal · · Score: 3, Informative

      The fundamental problem with MASERs is the M.
      Microwave.

      What you need to bear in mind for near-term optical and RF beam weapons is the Airy Disk.

      (see wikipedia).
      In short - if you have something emitting lots of energy, it's generally a good idea to have it able to hit the enemy, rather than shoot off into a broad cone.

      If you want to make a 1m spot on a craft with a beam of light, at 10000km, you need a mirror (about) 12 million wavelengths across.
      For microwaves, this is about 120km across.
      Generally problematic.
      For green light, 25m.

      And yes, this means that you need to focus the beam weapon - for the green light case, if you're off by 1000km in range, the spot grows to 3.5m, with a tenth of the energy per unit area.
      Instead of melting the mirrored surface, it bounces off.

    25. Re:Laser Beams by blueg3 · · Score: 1

      Technically lasers have recoil. Just not much.

    26. Re:Laser Beams by Creepy · · Score: 2

      Yeah, I was going to say most people have a serious misunderstanding about lasers vs smoke and mirrors because all they've ever seen is the low power kind that get refracted or reflected. Shoot a nice high powered laser into smoke and that smoke is going to vaporize just like if it hit a target it was meant to destroy, and probably won't even be affected much in the process. As for mirrors, they may give a bit of protection, especially vs certain frequencies, but not long, as you said, because they are not perfect reflectors - they will eventually heat up and melt. Metamaterials (the stuff you use for cloaking) have a similar problem to mirrors, as they also work best at certain frequencies. The real fun would be antimatter weaponry. For instance, I don't imagine a mirror will last long vs an anti-proton beam, though I don't know if such a beam would be easily to create (and anything outside basic quantum theory is beyond the science I've had, so I'm speculating).

      The other problem with mirrors is they tend to break, and reflective surfaces prone to scuffing. You could scuff them with some kind of a heat absorbing bonding agent (from a bomb or missile blast nearby - like anti-aircraft artillery) and then heat that with the laser until the mirror melts.. or you can just have the shrapnel try and penetrate (but if the skin is made to absorb micro-meteorites, you may not have much luck).

      Personally, I don't see humans in space combat, ever, unless it is in the next 30 years or so, because we won't be good enough. Machines will conduct any combat with lethal accuracy and unpredictable, high G-force dodging, and kill off the slow, predictable human ships at the end if not during the battle. With all hope, the machines we develop for our side are better than the machines developed for the enemy side or we are toast (and I'm not even going to broach traitorous AIs - we'll have to hope that never happens). The only hope humans have of surviving combat with machines is a perfect cloaking and sniping.

    27. Re:Laser Beams by Runaway1956 · · Score: 5, Insightful

      Guns, smart and dumb. Missiles. Bombs, smart and dumb. Maneuvering for position in gravity wells. People will discover that common, everyday tools make great weapons, with the application of imagination.

      What will war look like? Just like it has always looked. Messy, confusing, chaotic, adorned with lots of blood and gore.

      My question is, why does everyone ignore the guns? Guns will work wonderfully in space. Projectiles won't be deflected by dust, mirrors, or other fancy tricks. Guns have been pretty reliable since they were invented. Guns probably won't last long as a primary weapon, but they will always have a place in combat. Energy weapons won't rule until we've figured out cold fusion. Until then, guns will remain as end-game deciders, if nothing else.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    28. Re:Laser Beams by Anonymous Coward · · Score: 1
    29. Re:Laser Beams by vlm · · Score: 2

      So if you're envisioning combat to be far enough away that the light speed delay poses a problem, exactly what weapon are you envisioning that *doesn't* have this problem? If light is too slow.... Plus, if you're that far away, you're not going to be closing in on each other worth a flip

      Also you're gonna be a point source. You can just squirt plain old air from a drone precisely station keeping between you and the target and that small amount of air will completely defocus and decoliminate the beam... there is a reason why commercial laser cutters don't keep the expensive optics 20 feet away like they would like to protect them. Furthermore as a point source you just toss unfolded umbrellas along the vector... can't lase thru a fireball, so you get at most one hit per umbrella.

      I'm thinking lasers will be utterly useless more than 1 KM or so away. Just too easy to defend against a point source.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    30. Re:Laser Beams by aintnostranger · · Score: 1

      If light is too slow...

      Active homing missiles.

    31. Re:Laser Beams by durrr · · Score: 1

      And it is for this that the laser will be used, blowing those pesky missiles out of the sky, uh... void.

    32. Re:Laser Beams by AK+Marc · · Score: 1

      The question was "real" space combat, not TV-physics space combat. And the ones in such rooms are near perfect because they have the lights in the room up so much higher than the other room. But a laser of sufficient power fired at the mirror would reflect enough to burn the wall behind the person shooting, as well as damage the room behind the "perfect" mirror, as "perfect" still allows some light through for observation. So all you need is a higher-powered laser to kill the people behind the mirror.

      Or shoot bags of flour at them, and once one hits, you'll be able to blow them up easily.

    33. Re:Laser Beams by amicusNYCL · · Score: 5, Insightful

      My question is, why does everyone ignore the guns? Guns will work wonderfully in space.

      The main issue with using large guns in space is the recoil. A missile, for example, could be just tossed away from the ship with minimal impulse, and it fires up its own propulsion and goes on its way. Also, you really don't need the massive kinetic impact of a gun in space. Making a little pinhole in the side of a ship with a laser would be pretty effective in space and lasers would offer several other advantages over guns, including less recoil.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    34. Re:Laser Beams by durrr · · Score: 1

      You're pretty right on the laser part, as for nukes, why not use them, you can drop rocks on people for more damage than nukes so they'll be in very common use, part of that expensive complex munition things, although nukes are rather crude. Drones though, autonmous drones at that, can have some pretty ugly fucking problem in the radiation enviroment of space with bitflipping and whatnot.

    35. Re:Laser Beams by Anonymous Coward · · Score: 0

      Well the recoil of a typical gun would be a problem in space as it would change your vector. Yes, you could compensate for it, but fuel in space is a very limited quantity and "delta V" is pretty precious. I'd imagine "faster rockets" would be better than a typical gun. Something like an air-to-air missile as fired today from aircraft would work pretty well. Let go of it and fire the rocket and it won't affect your flight much (yes, the lost of mass will affect things, but not as much as recoil + loss of mass). All in all though, space is vast and fuel is limited. We don't have (and are unlikely to come up with) fiction staples like "inertial dampeners" and the like. So war in space is likely to really mean a "battle" between two "ships" in similar orbits.

    36. Re:Laser Beams by CrazyDuke · · Score: 1

      "Since all combat seems to be heading this way anyway, one might as well just say: Drones. Due to the light speed delay, they'd have to be much more automated, but again, we're headed that way anyway. Carrying around a person and a life support system is a *huge* mass and complexity penalty." ...not to mention the effects of long duration high-g maneuvering. It would be rather difficult to survive the abnormally high accelerations, especially considering the zig-zaging needed to avoid incoming near or at c weapons fire. You can build a drone that can handle it, however.

      The disadvantage, though, is you need a C & C relatively nearby that can handle what the automated programming cannot and to issue general orders, probably a carrier if an outpost and refueling dock is unavailable.

      --
      Any sufficiently advanced influence is indistinguishable from control.
    37. Re:Laser Beams by RsG · · Score: 3, Insightful

      I think if you've got a laser with enough light pressure to generate significant recoil, you've won with the first shot that actually hits, regardless of what the target is made of.

      As for what space combat would look like, assuming no exotic tech like controlled gravity, shields, reactionless engines or faster than light travel:
      -Manoeuvring would be limited by the g forces the crew can withstand on manned craft. Small combat craft would be drones, without exception.
      -Range would be longer than any current theatre of battle. Including strategic nuclear warfare.
      -Any drive worth using for long both range force projection and combat manoeuvres would be a fearsome weapon in itself. Think "thermonuclear blowtorch". With an Orion or antimatter engine, the fuel is potently explosive.
      -Stealth is flat out impossible.

      So, messy, expensive and strategic would be a good guess, and it probably wouldn't look very interesting to the naked eye (lots of bright flashes and empty blackness). Think less "Top Gun" and more "Wargames".

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
    38. Re:Laser Beams by TheCouchPotatoFamine · · Score: 2

      A mirror doesn't look like a mirror at other wavelengths, and that there is no such thing as a perfect reflector. The rest of your argument aside, that initial exchange you reference meant very, very little.

      --
      CS majors know the time/space tradeoff, but they never get taught the 3rd, crucial, tradeoff of the set: comprehension!
    39. Re:Laser Beams by qeveren · · Score: 1

      If the attacker is using x-ray lasers, odds are the umbrellas aren't going to save you. I'm a bit dubious that a puff of air is going to do terrible much to a weaponized laser in space either, honestly - you'll never get a dense-enough region of gas to meaningfully deflect the beam. Not to mention your attacker is going to be random-walking along with you to avoid return fire, which is going to make it pretty hard for the interceptor drone to be in the right place at the right time...

      --
      Don't just stand there, get that other dog!
    40. Re:Laser Beams by avandesande · · Score: 2

      How would you know the laser was fired before it hits you?

      --
      love is just extroverted narcissism
    41. Re:Laser Beams by Anonymous Coward · · Score: 0

      The reality is that if you're far enough away that light is too slow, then your combat will just be conducted closer.

      No it won't. It'll start off that far away - and the first one to run out of fuel, and be unable to continue jinking, will lose.

      Then a few days later, their missiles, travelling at a stately ~10 km/s, catch up and annihilate the victor.

    42. Re:Laser Beams by qeveren · · Score: 1

      At weapon levels, mirrors effectively become opaque to laser beams due to the energies involved - they'll just soak up the beam and explode like any other material. Your only real hope against weapon lasers is to either not be where it is, or have enough ablative armour (pray they're not using anything harder than UV) and structural strength to get out of the way before it drills through it or pounds the ship to bits (pulse lasers are unpleasant).

      --
      Don't just stand there, get that other dog!
    43. Re:Laser Beams by Genda · · Score: 1

      I'm sorry but all of this presumes a linear progression of current earth based technology being employed in space. Gamma/X-ray lasers or high energy neutron pulses would be profoundly effective against anything we have today earth-side. Availability of a matter-antimatter device could wipe out entire fleets. Even nukes combined with large rocks (small asteroids) would present a threat in space for which there are no good countermeasures (save another asteroid.)

      We aren't even up to really exotic weapons (well matter-antimatter would be pretty exotic.) Nano-weapons, robotic armies, EM pulse weapons, exotic particle weapons, are all highly feasible ways of waging war in space.

      Perhaps a more interesting possibility demands discussion. The unilateral cessation of all armed human conflict. As a "price to enter space" any interested nation has to agree to diplomatic solutions to human crisis, and that any attempt to aggressively enter space would result in a messy war filling the near earth region so full of debris, that humanity would be sequestered from all space travel for 5-10 generations. Such an agreement could be established with relative ease, and as the remaining world watched those going into space become strong and wealthy, the impetus to give up childish behavior would be overwhelming.

    44. Re:Laser Beams by razorh · · Score: 1

      Due to an in increase in patent/copyright/trademark litigation in the future MicrAppleSoft will be forced to change their name to MiSoftCrapple.

    45. Re:Laser Beams by LeadSongDog · · Score: 3, Funny

      "Caution, lasers in mirror are closer than they appear."

      --
      Oh, I'm sorry sir, I thought you were referring to me, Mr. Wensleydale.
    46. Re:Laser Beams by aintnostranger · · Score: 1

      The missiles can have a laser weapon as its main payload. That solves the problem of a target moving out of a long range laser's way, and also solves antimissiles. Missile travels toward target and when it's at a distance close enough for the speed of light not to be a problem, laser fires.

    47. Re:Laser Beams by garyebickford · · Score: 2

      I think projectile weapons (railguns etc.) are likely to be used. But they do have a serious drawback - you are essentially launching a small, fast, heavy satellite. If it doesn't hit the target, it's going to keep going - somewhere. That somewhere might well be your own behind, depending on how the orbital mechanics works out. And if they do hit the target, you've just created a large number of new projectiles with unpredictable orbits. Beam weapons would be cleaner.

      Hmm. I wonder if neutron bombs would be the thing - eradicate all living things on the opponent vessel without damaging the vessel, preferably with an associated EMP to destroy all the electronics. At that point the targeted vehicle is a floating heap of raw materials - but without any control systems may be on its way to self-destruction anyway.

      If we were sane, we could have laws requiring that all space wars between signatories of the appropriate space war convention would basically play a form of laser tag, where nothing actually gets destroyed and the orbital space is not filled up with junk. That's unlikely, though it might be fun!

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    48. Re:Laser Beams by arpad1 · · Score: 3, Interesting

      Unless of course some bright, young thing figures out a way to use the recoil of a projectile weapon to tactical advantage. Much of the history of warfare consists finding new lemonade recipes for the new lemons that keep showing up.

      Oh, and not all projectile weapons have recoil or at least recoil that has to be absorbed. There was a fairly brief, by military standards, love affair between militaries and recoilless rifles.

      --
      Minutus cantorum, minutus balorum, minutus carborata descendum pantorum.
    49. Re:Laser Beams by medcalf · · Score: 2

      Mirrored surface. The visibility tradeoff is on the defender's side, because you're going to see them anyway: they'll be radiating heat. So the lasers would likely be terribly ineffective. You need some kind of kinetic weapon, or maybe radiation from a sufficiently close range.

      --
      -- Two men say they're Jesus. One of them must be wrong. - Dire Straits
    50. Re:Laser Beams by Runaway1956 · · Score: 4, Interesting

      The "large" in "large guns" was not from my post. I used the word "guns". Unless, and until armored ships appear on the scene, a standard .30 caliber machine gun will be devastating to almost any spaceship. Even more so if the ammo is explosive and/or fragmenting. The ammunition is so cheap that you can spray and pray a large volume of space with the thing, for little cost. The greatest drawback to this approach is, the cost of transporting all that ammo. The problems with recoil are manageable with fire discipline, I would imagine.

      Don't get me wrong here - energy weapons will be more and more important, militarily, as technology progresses. I just don't see lasers replacing guns for a long, long time to come. Even then, when the best equipped and best supported navies have cast away their last guns, less wealthy forces will probably create situations where their obsolete weapons can overcome the better equipped "Imperial forces".

      The wars in Iraq and Afghanistan suggest as much. The US/NATO forces are vastly better equipped than the insurgents, but the US/NATO still suffer casualties. What's that term? "Improvised Explosive Devices".

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    51. Re:Laser Beams by zero.kalvin · · Score: 1

      That's why I corrected myself in a self-reply. However, there is two things to keep in mind, one is futuristic technology ( is beyond what we can think of), and second of all, no weapon is perfect... Find me a 1000 round/s concrete piercing, self-correcting sniper with Gamma ray scopers and I'll bend over...

    52. Re:Laser Beams by blueg3 · · Score: 1

      Correct: if you can measure the recoil of your laser, your laser is almost certainly an "I win" button. (It's also well into the realm of many other more difficult practical matters.)

    53. Re:Laser Beams by emilper · · Score: 1

      large bags of sand ...

    54. Re:Laser Beams by Runaway1956 · · Score: 2

      To be fair, "recoilless rifles" weren't precisely "recoilless". Instead, they absorbed the recoil, and/or dispersed the recoil so that the gun wasn't moved from it's position on the ground. In space, that recoil will still have an effect on your trajectory.

      But, the first part of your post is on target. A good gunner will hit his target. An exceptional gunner and bridge crew will use that recoil to best advantage.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    55. Re:Laser Beams by ubrgeek · · Score: 1

      With sharks. We can't forget the sharks.

      --
      Bark less. Wag more.
    56. Re:Laser Beams by noh8rz2 · · Score: 1

      The question was "real" space combat, not TV-physics space combat.

      woosh! (like a space plane would do)

      Or shoot bags of flour at them, and once one hits, you'll be able to blow them up easily.

      +1 Insightful

    57. Re:Laser Beams by amicusNYCL · · Score: 1

      The "large" in "large guns" was not from my post. I used the word "guns". Unless, and until armored ships appear on the scene, a standard .30 caliber machine gun will be devastating to almost any spaceship.

      I think it's fair to assume that armor will be standard from day 1. A .30-cal doesn't do a whole lot against an Abrams, so there's no reason to build a big, expensive ship that doesn't have enough armor to block a bullet.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    58. Re:Laser Beams by wintywashere · · Score: 1

      Eve Online. That is all.

      --
      Warcraft main?!? Are you serious?
    59. Re:Laser Beams by maxwell+demon · · Score: 1

      Of course if you have the technology to produce and safely store it, the most effective weapon would be a few grams of antimatter. Impossible to shield against, and absolutely devastating as soon as it hits the enemy ship.

      Probably you wouldn't store it on the normal battleships, but on special unmanned spaceships specifically built for that. That way if such a ship is hit, the collateral damage of the explosion is minimized.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    60. Re:Laser Beams by DamnStupidElf · · Score: 3, Funny

      Ahh!!! I've been hit by a neutrino beam! I might get my yearly radiation dose in... 4 months!

    61. Re:Laser Beams by GodInHell · · Score: 2

      The greatest drawback to this approach is, the cost of transporting all that ammo.

      And you answer your own question. For now, weight == incredible value. Then again -- a high powered water hose is indistinguishable for a cannon in space. (Water sprays out, freezes, and retains its velocity -- also, since no air, the droplets are likely to be spherical / ovular -- great for penetration). Then again -- water is ALSO expensive as hell to put in orbit -- but at least it has more uses and is less likely to trigger a massive explosion that destroys the ship its in.

      -GiH

    62. Re:Laser Beams by barc0001 · · Score: 2

      David Weber's Harrington series solve the speed of light issue with an unobtainium-based drive system for missiles coupled with a very real Reagan-Star-Wars approach to generating x-ray laser fire by using a nuclear explosion as a source of energetic photons:
      http://en.wikipedia.org/wiki/Project_Excalibur.

      Basically you strap a bunch of lasing rods around a nuke, point the rods where you want the beams to go, and set the nuke off. During the first couple of microseconds of the nuke's explosion you'll get some unbelievably powerful beams coming off the lasing rods before they melt another few microseconds later. So in the Harrington books, the missiles close to a range where the speed of light issue ceases to be a problem, and explode, releasing a (very brief) storm of x-ray laser bursts pointed at the target ship.

    63. Re:Laser Beams by maxwell+demon · · Score: 1

      So one of the weapons will be black spray paint to prepare the enemy ships for the lasers.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    64. Re:Laser Beams by Bonobo_Unknown · · Score: 1

      Nukes won't do much in space... there's nothing to propagate the shock wave, and heat transfer is all down to radiation. You'd have to hit the enemy ship directly with the nuke basically, which might be hard with all those lasers and anti missile guns going off...

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
    65. Re:Laser Beams by maxwell+demon · · Score: 2

      However if you are in orbit, your bullets may come back to you after one orbit. You don't want to shoot yourself in the back!

      --
      The Tao of math: The numbers you can count are not the real numbers.
    66. Re:Laser Beams by bobcat7677 · · Score: 1

      Yeah, except in space no one can hear you scream. Sorry, had to be said:)

    67. Re:Laser Beams by Anonymous Coward · · Score: 0

      Rail guns - 3.2 Kg moving at 2.4 km/s - sure to break the mirror defence against LASERs.

      gee - this could get complicated - attack - counter - lather , rinse, repeat...

    68. Re:Laser Beams by man_of_mr_e · · Score: 0

      Guns.. in space...

      Ok, let's throw just a few problems out there.

      1) No oxygen. Normal firearms require oxygen to ignite the gunpowder. It might be possible to come up with purely chemical explosives that don't require oxygen, but no guarantee on that.

      2) Someone else mention "high explosive" rounds. Same problem as #1.

      3) Recoil. Firing a bullet exerts as much energy on you as it does away from the vehicle. If it's a lightweight fighter of some kind, that has some serious effect. It also reduces the velocity of the bullet going out.

      4) Problems 1, 2 and 3 might be solved usuing railgun technology. Railguns still have recoil, but not as much as traditional explosives. Still, they require a lot of power which must come from somewhere.

      5) bullets add to the debris in a firefight, plus if they break stuff on the target that adds debris, all that debris turns into projectiles that you can fly into, thus damaging your own ship.

      6) Weight.. Bullets are heavy. Plus you have to have the extra weight of the casings and explosive. Weight = money

      7) This number left intentionaly blank

    69. Re:Laser Beams by polymeris · · Score: 1

      If you can build a laser with enough power, focal distance and cooling to do significant damage at .6 lightseconds you're going to mop the floor with anyone attempting to use kinetics at that range.

      That is going to be a major issue in space combat. How do you get rid of the heat? It wouldn't surpise me if it would boil down to who can keep a cool environment the longest.
      Unless you fit your craft with gigantic radiators. But those would be suceptible to kinetic damage, from torpedos and the like.

    70. Re:Laser Beams by WarlockD · · Score: 2

      lasers? seriously? I can tell you what space combat will be like with our level with tech.:

      It will be jousting with big aluminum polls, ball bearings as dropped mines and tracking missiles with pikes at the end.

      People can talk about all the offence ability they want (lasers, rail guns, etc) but the fact is that we don't have the engine or armor technology to move things fast in space. So we will be forced to make do with ships built like Russia pods or "cruisers" like what the shuttle is. We don't even have the scanning ability to track incoming fire if its not self powered. A long aluminum poll with a steel tip going 0.01c at a shuttle will destroy it just as much as a billion dollar rail-gun.

      In space, inertia is the empire. We are just rebels trying to survive:P

    71. Re:Laser Beams by AK+Marc · · Score: 2

      I think that's the thing that'll be ignored. 1000 years of space battles will evolve space battles to something we can't comprehend. Want to defend against lasers? Shoot out sand in the direction of the attacking ship. The dirty sand is vaporised, and the clean sand reflects/refracts enough that the albedo armor will allow you to live. Shoot a blob of oil at them, with an explosive charge in it, when close enough it detonates, covering the target in oil. Then shoot that with your laser, heating up the ship, and the vaporised oil will be hot enough to spontaneously combust in the presence of O2, so any leaks in the ship you caused will be highlighted by massive flame towers so you can concentrate fire on their weaknesses. There are so many possibilities that it would take many many years to figure out how wars are fought. Just when wars were becoming predictable, wars changed (guerrilla warfare for everything since WWII, and plenty of that in the revolutionary and civil wars).

    72. Re:Laser Beams by rgbatduke · · Score: 1

      See Niven and Pournelle's book "Footfall". It pretty much says it all for space combat and planetary siege with non-magical weapons that are based on sound physics. Project Orion. Gamma ray layers triggered with small nukes. Nuclear missiles. High speed high mass projectiles, smart and otherwise. Project Thor. Dropping Asteroids. Ramming. Regular (e.g. visible light) lasers. Die snouts die. rgb

      --
      Even when the experts all agree, they may well be mistaken. --- Bertrand Russell.
    73. Re:Laser Beams by K.+S.+Kyosuke · · Score: 1

      The "large" in "large guns" was not from my post. I used the word "guns". Unless, and until armored ships appear on the scene, a standard .30 caliber machine gun will be devastating to almost any spaceship.

      The Soviets equipped their space stations with 23mm aircraft cannons. That should be enough for everyone. :-)

      --
      Ezekiel 23:20
    74. Re:Laser Beams by Anonymous Coward · · Score: 0

      MiCRAPplesoft, FTFY

    75. Re:Laser Beams by Swampash · · Score: 1

      Since all combat seems to be heading this way anyway, one might as well just say: Drones. Due to the light speed delay, they'd have to be much more automated, but again, we're headed that way anyway.

      One might as well just say: Berzerkers.

      Saberhagen's stories scared the crap outta me as a kid, the thought that we're on that path already is fucking terrifying.

    76. Re:Laser Beams by marcosdumay · · Score: 1

      much of the waste heat is carried off in the exhaust; they're really kind of like rocket engines

      So, throw your laser generators in the enemy. Shoot the laser at their sensors, and use the gear as mass ammo, tageted at wherever a mass impact would create the most damage.

      Probably doesn't beat a nuclear propeled mass impact...

    77. Re:Laser Beams by Swampash · · Score: 1

      Projectiles won't be deflected by (...) mirrors, or other fancy tricks.

      My X-laser won't even know your mirror is there.

    78. Re:Laser Beams by marcosdumay · · Score: 1

      Boy, that is a heck of a HUGE neutrino generator. What are you using for power? A galaxy cluster?

    79. Re:Laser Beams by Sperbels · · Score: 2

      Armor is also impractical when your pushing yourself around on chemical rockets. It weighs too much.

    80. Re:Laser Beams by Mateorabi · · Score: 1

      But radiators are probably pretty robust to kinetic damage. Just like in your car. I could see ships that are intentionally large, but 99% radiator acting as ablative shield too. Hide the critical 1% throughout the ship randomly so the opponent doesn't know which 1% to aim at.

      --
      "You saved 1968." - Ms. Valerie Pringle to the crew of Apollo 8

    81. Re:Laser Beams by Walkingshark · · Score: 1

      Your forcefields are good, but my teleporting is better.

      --
      The world you experience is only a close approximation of reality.
    82. Re:Laser Beams by Opportunist · · Score: 4, Interesting

      Guns are great as long as you don't take into account one problem that they share with lasers: Heat.

      Heat is easy to dissipate on a planet with an atmosphere. Heat sinks, whatever shape they might take, work wonders in an environment where you have a medium to take said heat and move it away. Be it air or even preferably water, any medium will do as long as it somehow moves heat away.

      You lack exactly this medium in space. There is no way to dissipate heat but by radiation. Which is surprisingly little.

      Your problem is that pretty much anything creates entropy, and hence heat. Propulsion solves this problem by simply tossing the hot stuff out behind. It might work if you somehow manage to transfer the heat from the propellant explosion into the shell, otherwise... well, try to get rid of it.

      Lasers actually increase that problem. Since there's nothing you could possibly load with the heat and jettison.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    83. Re:Laser Beams by Sperbels · · Score: 2

      No oxygen. Normal firearms require oxygen to ignite the gunpowder. It might be possible to come up with purely chemical explosives that don't require oxygen, but no guarantee on that.

      Chemistry fail. Gunpowder doesn't need atmospheric oxygen to burn. It will still burn in a vacuum.

    84. Re:Laser Beams by alonsoac · · Score: 1

      You could add something like a periscope?

    85. Re:Laser Beams by turbidostato · · Score: 1

      "Ok, let's throw just a few problems out there."

      OK, I'll see your problems:

      "1) No oxygen."

      Astronauts have proven there *is* good enough concentrations of oxygen in space... within the spaceships, which is where those weapons will be ignited.

      "2) Someone else mention "high explosive" rounds."

      Where do you thing those "high explosive" rounds are meant to explode? In the middle of the space vacuum or... within another inhabitted spaceship aplenty of oxygen? On the other hand, it is not as if those "high explosive" rounds wouldn't be able to load both comburent and combustible within.

      "3) Recoil."

      Yes, that's a problem you should count with. But recoil is proportional to involved masses: that's why the bullet goes out at high speed while you just notice a bump in your elbow: big spaceship + little bullet = controllable effect.

      "Railguns still have recoil, but not as much as traditional explosives."

      Railguns have *exactly* the same recoil as a conventional gun with same masses and mouth speeds involved. It can't be any other way.

      "5) bullets add to the debris in a firefight"

      Breaking into parts your target *does* add to the debris... up to a point that the bullets themselves become a non-problem. But regarding bullets... "all that debris turns into projectiles that you can fly into" Just explain me how: by definition you and anything you can push away from your spaceship will have different trajectories *and* speed no matter if you are orbiting or not. Of course you can certainly be stupid enough to shoot into exactly your own orbit with enough speed to tailgate you prior for you to be able to abandon your current orbit but, you know, darwing prizes do exist for a reason.

      But you are up to something there. No need of even bullets: kinetic energy is your damn friend: you just need to gain a higher orbit and let a part of your own spaceship to drop into your target. You can bet on this:

      1) For the foreseeble future there will be no battles in space.
      2) But when time reaches, first battles will use conventional machine guns (there have already been tests of this).
      3) Second generation will be as slow as WWII submarine combats and awfully tactical to the point of making the combat itself moot, kind of chess: someone will gain a winning position and the other one will know to be done so will surrender.
      4) It either won't be third generation space battles because of a MAD event here in Earth, or now yes, you are free to think in any kind of star trek-like scenario neither you nor me can imagine.

    86. Re:Laser Beams by WorBlux · · Score: 1

      1. Normal firearms do not require oxygen for the powder to ignite. The powders are only able to burn so rapidly because oxidizers are mixed int. In fact without a atmosphere the bullets wont slow down with distance. 2. Explosives also do not require external oxygen. The explosion is created by the rapid formation of gases from withing the explosive material. 3. Recoil is easy to solve. Fire a blank in the oposite direction for every round. 5. Maybe, but it can also be used so that the debris clogs up enemy movement paths more than your own. 6. Not really, any old bit or scrap or metallic meteorite you find along the way can be transformed into a projectile.

    87. Re:Laser Beams by turbidostato · · Score: 1

      "if you have the technology to produce and safely store it, the most effective weapon would be a few grams of antimatter. Impossible to shield against"

      It's either impossible to shield against or you have the technology to safely store it, it can't be both ways (yeah, if you are thinking about a theoretical confinement field, you could theoretically protect your ship with them too).

      I myself prefer a good old unobtanium space-folding missile.

    88. Re:Laser Beams by DigiShaman · · Score: 1

      It will be software driven with automatic target locking and tracking. All the monkey in the seat needs to do is verify the target with a set of eyes and pull the trigger.

      Yup. Pretty much all there is to that. Easy. No?

      --
      Life is not for the lazy.
    89. Re:Laser Beams by mooingyak · · Score: 1

      Bullets staying in orbit without someone deliberately trying to make that happen seems unlikely to me. They'll need to be launched at a fair velocity to be of any use, so they're likely to be able to escape orbit to begin with. Plus, combat while in orbit would probably be the exception rather than the rule.

      --
      William of Ockham had no beard. The most likely explanation is that it was chewed off by squirrels every morning.
    90. Re:Laser Beams by AK+Marc · · Score: 1

      Then they'll shoot off your periscope. Though that only allows you to look, not move or fire back.

    91. Re:Laser Beams by amicusNYCL · · Score: 1

      Right. It makes all kinds of sense in the weightlessness of space, though. Of course, there's not much of a reason to launch an assembled ship if you can launch parts and assemble many ships in orbit. Small, fast, armored drones are the way to go.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    92. Re:Laser Beams by DigiShaman · · Score: 1

      Like a squid releasing ink. Interesting.

      --
      Life is not for the lazy.
    93. Re:Laser Beams by Nethemas+the+Great · · Score: 1

      Explosives are explosive due to the presence of an oxidizer. If black powder for instance did not contain potassium nitrate (the oxidizer) then it wouldn't matter whether it was in a vacuum or a pure oxygen atmosphere, you might get it to combust in the case of the latter but it would be impossible to "explode." As for the "recoil" thing I'd strongly suggest you review Newton's Third Law of Motion.

      --
      Two of my imaginary friends reproduced once ... with negative results.
    94. Re:Laser Beams by Anonymous Coward · · Score: 0

      The ship is built to resemble a shark, of course.

    95. Re:Laser Beams by Anonymous Coward · · Score: 0

      Anti-proton beams are entirely possible. They're also hilariously stupid. Between outright misses and beam attenuation - which will be rather extreme in this case, as anti-protons all have the same charge - you *will* get stray anti-protons. Guess what happens if they hit... say, a space station? Or maybe a planet, if in large enough quantity? Anti-protons are much more dangerous in this respect than an ordinary plasma beam, as they contain not only their kinetic and thermal energy in potential damage, but also their mass energy.

    96. Re:Laser Beams by Rich0 · · Score: 1

      Yup. In general in a laser battle there are a few key things that will yield an advantage:

      1. Armor capable of absorbing shots. That one is pretty obvious, but probably not very practical.
      2. Maneuverability - to increase the cross-section of space your ship could be inside when somebody shoots at you.
      3. Firepower - to be able to cover more cross-section of space that the other ship could be in.

      I suspect that armor is the least useful of these - better to not get hit at all. Ships would close until one or the other reaches a range where its firepower outclasses the other ship's maneuverability.

      The basic algorithm is simple - figure out where the ship was at some point in time, then figure out where it could be assuming maximum acceleration from that point, and then pattern that entire region of space with your lasers. As you close the area that you are firing at will get smaller and smaller until you connect.

    97. Re:Laser Beams by Skal+Tura · · Score: 1

      Rail Guns. 'Nuff said.

    98. Re:Laser Beams by yndrd1984 · · Score: 1

      I'd use corner cube dust. Hell, just cover the ship with them and start taunting people.

    99. Re:Laser Beams by Skal+Tura · · Score: 1

      ehrm, only if you shoot it at too low velocity in a trajectory that gravity will grab it. I would assume the velocity needs to be really small for something weighting as little as a 9mm bullet (7-9gr) and without velocity something that light won't do much damage.

    100. Re:Laser Beams by mjwx · · Score: 2

      Or ablative shielding, or maybe even spray dust down the anticipated threat axis. If the enemy laser emits visible light and you have an idea of the laser's frequency, maybe coat the dust particles with something of the same color, or spray multi-colored dust if you don't.

      Alistair Reynolds had a good idea (probably wasn't the first) which I read in Absolution Gap.

      How do you easily replace ablative coating in space, with materials that can be gathered in space?

      Coat a ship in ice.

      Ice probably isn't the best ablative material, but it will be the easiest to replace and maintain, especially given the number of sources of ice out there and the ease of melting and applying it (Ceramics and metals require some kind of foundry/fabrication facility meaning this can not easily be carried on ships). Not just for combat, travelling at speed in space is dangerous enough, micrometeorites, dust and other stellar debris present a problem for metal hulls. The downside is, it cant be used for re-entry.

      --
      Calling someone a "hater" only means you can not rationally rebut their argument.
    101. Re:Laser Beams by Sperbels · · Score: 2

      Well, a self guided missile could be considered a drone....a suicidal drone. Missiles are the most logic way to conduct combat in space.

    102. Re:Laser Beams by Runaway1956 · · Score: 1

      Good point. A water cooled gun would solve that - for awhile. Or, oil cooled. But, as you imply, all that heat is going to be right there aboard the ship with you, until you find some kind of heat sink to drain it off to. Pretty much the only heat sink available in space would be chunks of ice from the asteroids.

      Some bright boys have a real challenge to solve, don't they?

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    103. Re:Laser Beams by jnaujok · · Score: 4, Interesting

      Actually spraying a fine mist of water over the system is ideal -- the vacuum causes the water to boil away, absorbing 512Kj/Mol of heat away from the system, and the steam boils away into the vacuum. This water vaporization system is exactly how the Apollo astronauts kept cool on the moon.

      --
      Life, the Universe, and Everything... in my image.
    104. Re:Laser Beams by garyebickford · · Score: 1

      I'm too lazy and not competent to do the actual computations, but even if they escaped Earth orbit, I am pretty sure they'd still be in solar orbit. According to Wikipedia, solar escape velocity at Earth's orbital distance is 42 km/s or 151,200 km/hr (about 100,750 mph), which is whizzing along pretty fast.

      But thinking about your last point, I think if we can assume that Earth authorities retain jurisdiction in the Earth-moon system and manage to prevent localized conflicts somehow, the first battles are likely to be between commercial entities in the Asteroid belt, where there are already plenty of projectiles on a myriad different orbital paths. In that environment it is possible that the risk from stray projectiles would not be that much different than the risk from random space rocks. But IANARS.

      --
      It's easier to be a result of the past, but more fun to be a cause of the future! http://www.spacefinancegroup.com/
    105. Re:Laser Beams by amicusNYCL · · Score: 1

      I agree, but missiles are vulnerable to getting attacked. Unless the missiles are armored... and maybe you could add additional weapons, so that they could attack multiple targets.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    106. Re:Laser Beams by narcc · · Score: 1

      You probably felt like a moron a few seconds after you hit 'submit'. In case you didn't, I strongly recommend that you take a look at the wikipedia article for inertia.

    107. Re:Laser Beams by SuperMog2002 · · Score: 1

      Barring exotic supertechs

      50 years ago, my MacBook Air would have been considered an exotic supertech. By the time these space battles occur, who knows what kind of stuff we haven't even imagined yet will have become commonplace, and then obsoleted by even fancier tech.

      --
      Sunwalker Dezco for Warchief in 2016
    108. Re:Laser Beams by amicusNYCL · · Score: 1

      Thanks, but it was more of a riff on the fact that he used "weight", and inertia refers to mass. That's why I said "weightlessness". Happy to help.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    109. Re:Laser Beams by amicusNYCL · · Score: 1

      Since I'm retarded and posted my reply to the wrong post, here it is again in all its original glory:

      I agree, but missiles are vulnerable to getting attacked. Unless the missiles are armored... and maybe you could add additional weapons, so that they could attack multiple targets.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    110. Re:Laser Beams by Lord+Kano · · Score: 1

      Even more so if the ammo is explosive and/or fragmenting.

      I'd suggest that armor piercing would be better yet. Punch one hole through the hull and let their artificial atmosphere do the work for you.

      LK

      --
      "Hi. This is my friend, Jack Shit, and you don't know him." - Lord Kano
    111. Re:Laser Beams by Thing+1 · · Score: 1

      Guns have been pretty reliable since they were invented. Guns probably won't last long as a primary weapon, but they will always have a place in combat. Energy weapons won't rule until we've figured out cold fusion. Until then, guns will remain as end-game deciders, if nothing else.

      It's interesting to think, though, as we progress towards nanotechnology, that every piece of matter will be "thinking matter". So, then, "who wants to be the bullet?" (This was previously featured on Robot Chicken, where the robot built from five robots fires a bullet, and then it's built from four robots...)

      --
      I feel fantastic, and I'm still alive.
    112. Re:Laser Beams by Thing+1 · · Score: 1

      Or ablative shielding, or maybe even spray dust down the anticipated threat axis. If the enemy laser emits visible light and you have an idea of the laser's frequency, maybe coat the dust particles with something of the same color, or spray multi-colored dust if you don't.

      And as a defense, it might not be a bad idea to, somewhat, "coat the ship in movable parabolic lenses". Then when it detects an incoming laser, it can focus it back on the source and eliminate the threat.

      --
      I feel fantastic, and I'm still alive.
    113. Re:Laser Beams by Anonymous Coward · · Score: 0

      >a standard .30 caliber machine gun will be devastating to almost any spaceship

      Ha ha ha, no. A practical interplanetary vessel would already need to be armored to withstand impacts from micrometeorites and other random junk packing more energy than a .30 cal round.

      >The ammunition is so cheap that you can spray and pray

      Boy, do you really understand how big space is? At a piddling 500km, do the math on how large a window you would need to guarantee a hit on a 50 m diameter vessel capable of 10 m/s^2 delta-v in any direction. Then calculate how many .30 bullets it would take to saturate that big an area for a kill.

    114. Re:Laser Beams by JWSmythe · · Score: 1

          I'm thinking adjusting the orbit of a few hundred thousand asteroids would be a lot more powerful than any number of bullets a theoretical spacecraft could carry. When it's raining city sized rocks, it's really going to be messy.

          Regardless, it's best against (relatively) stationary targets.

          Unless your spacecraft happened to be ridiculously close to the enemy, it won't matter.

          We're assuming a highly advanced method of space travel. With the technology we have now, we can see minor planets in other solar systems. Lets assume that just the next star away is far enough, and somehow you have bothered with advanced technology like a telescope. If the projectile were to accelerate to half the speed of light. It would only take about 8.4 years to reach you (assuming a pretty quick acceleration). Unless you're a *very* boring target that doesn't move, you have plenty of time to think about what to do. You'll have 4.2 year to say "look at that funny little object coming right at us really quick.

          So back to adjusting the asteroids. The attacker would have to be pretty slick, to be freakin' invisible while they went *to* the asteroids to point them towards the target.

      --
      Serious? Seriousness is well above my pay grade.
    115. Re:Laser Beams by Ambvai · · Score: 1

      "Bounce a graviton particle beam off the main deflector dish.
      That's the way we do things, lad, we're making shit up as we wish..."
      -Voltaire

    116. Re:Laser Beams by Daniel+Phillips · · Score: 2

      Good luck warming up my hull while I nuke your proverbial bottom.

      --
      Have you got your LWN subscription yet?
    117. Re:Laser Beams by Neil+Boekend · · Score: 1

      Contary to movie physics water does not freeze in space. It evaporates.
      We can assume the water is at room temperature when launched. In space it doesn't really change temperature much (it can't lose heat fast since there is nothing to lose the heat to. Only radiaton and that is slow as a big dump out of an ant's ass at 20 C). If you take the phase diagram of water you'll see it is a gass in vacuum at 292 K.
      Now the water will cool due to the evaporation itself (boiling costs thermal energy). Thus some of the water will freeze but that'll be more of a snowstorm, not an icicle.

      --
      Well, I might have a way, but it only works on a semi spherical planet in a vacuum.
    118. Re:Laser Beams by Neil+Boekend · · Score: 1

      Weight (as in mass) doesn't matter in this equasion.Only speed, direction and the gravitational field.
      It's a direct result of the fact that in vacuum a lead ball and a feather fall at the same speed. The speed for it to be caught in orbit is the same for the bullit as it is for the ship you just shot.
      This fact not withstanding: your point is valid, assuming your not batteling close to a neutron star.

      --
      Well, I might have a way, but it only works on a semi spherical planet in a vacuum.
    119. Re:Laser Beams by maxwell+demon · · Score: 1

      You could store ionized antimatter using an ordinary electromagnetic field, but neutralize it just before application to render electromagnetic fields ineffective as shield.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    120. Re:Laser Beams by Rei · · Score: 1

      Nukes in space *do* all come down to radiation. But the difference is, on Earth, the overwhelming majority of the radiation is absorbed by the atmosphere (which heats up the atmosphere, fuelling the shockwave). In space, the radiation just keeps on going. The radiation kill zone in space is many times larger than on Earth. Plus, as mentioned, radiation shiedling is far easier on earth than in space due to launch mass issues. And in case you're thinking "magnetic shielding", it indeed helps with lower-energy particles like solar wind, but doesn't do much to relativistic particles and has no effect on uncharged particles like neutrons.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    121. Re:Laser Beams by Neil+Boekend · · Score: 1

      Just put a picture of The Fonz on the side of the laser.

      --
      Well, I might have a way, but it only works on a semi spherical planet in a vacuum.
    122. Re:Laser Beams by Kirth · · Score: 1

      You missed two things:

      - Recoil. You'll propel your own spacecraft back

      - Range. Your bullets will travel forever on their trajectory, until they hit something. Which leads to very bad "friendly fire".

      Missiles have a similar problem; you do not want anything to explode, since this will send debris in all directions, which most probably will hit friendly objects as well.

      I'd go for lasers.

      --
      "The more prohibitions there are, The poorer the people will be" -- Lao Tse
    123. Re:Laser Beams by Deliveranc3 · · Score: 1



      as sling-shotting them around a planet while the main attack is from the other side would probably be an effective technique.

      Good point. a remote engine on a comet or asteroid would do the MAD thing even today.

    124. Re:Laser Beams by Captain+Hook · · Score: 1

      Missiles don't have to explode, just have a solid pointy thing up front instead of a warhead and ram the target at high relative speed to the target. There would be a bit of debris from the damage done by impact (similar to a gun projectile) but not the ship breaking into millions of little bits like a star wars movie.

      Missiles would prevent you having to deal with recoil you'd get from a gun and heat dissipation within your ship you'd get with a energy system.

      --
      These comments are my personal opinions and do not necessarily reflect the opinions of the other voices in my head.
    125. Re:Laser Beams by JosKarith · · Score: 3, Insightful

      Gunnery Chief: [as the character enters the Citadel] This, recruits, is a 20-kilo ferris slug, feel the weight. Every five seconds, the main gun of an everest class dreadnought accelerates one to 1.3% of light-speed. It impacts with the force of a 38-kiloton bomb. That is three times the yield of the city-buster dropped on Hiroshima back on Earth. That means- Sir Issac Newton is the deadliest son-of-a-bitch in space. Now! Serviceman Burnside! What is Newton's first law?
      Serviceman Burnside: Sir! An object in motion stays in motion, sir!
      Gunnery Chief: No credit for partial answers, maggot!
      Serviceman Burnside: Sir! Unless acted on by an outside force, sir!
      Gunnery Chief: Damn straight! I dare to assume you ignorant jackasses know that space is empty. Once you fire this hunk of metal, it keeps going til it hits something. That can be a ship. Or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you are ruining someones day, somewhere and sometime. That is why you check your targets. That is why you wait for the computer to give you a damn firing solution. That is why, Serviceman Chung, we do not "eyeball it". This is a weapon of mass destruction. You are not a cowboy shooting from the hip!
      Serviceman Chung: Sir, yes sir!

      --
      'Don't worry' said the trees when they saw the axe coming, 'The handle is one of us.'
    126. Re:Laser Beams by delt0r · · Score: 1

      The ranges of space battles will be measured in 1000 to 100s of thousands of km. ie light microseconds to seconds. At 2.4km/s it would take 11 hours to travel 100,000km or 1/3 the way to the moon. If we use projectile weapons it will be in the 100km/s speed range.

      --
      If information wants to be free, why does my internet connection cost so much?
    127. Re:Laser Beams by delt0r · · Score: 1

      Most of the energy is in xrays. Lots of xrays. Close enough and you get shock heating and ablation of the surface layer of the target, launching a shock wave/debris into the ship.

      --
      If information wants to be free, why does my internet connection cost so much?
    128. Re:Laser Beams by camperdave · · Score: 1

      Will the vacuum pull the slug out of the cartridge (or rather, will the normal atmospheric pressure inside the cartridge push the slug out of the cartridge) before the wielder gets to fire the weapon. In other words, are bullets strong enough to withstand vacuum?

      --
      When our name is on the back of your car, we're behind you all the way!
    129. Re:Laser Beams by flyneye · · Score: 1

      Meanwhile my ground team navigates aged satellites toward your ship. I suppose the ISS could empty it's sewage compartment if you get too close. AFAIK that is the modern state of possible warfare in space...lazertag and dodgeball.
      Waitagoddamnminute! Din't Reagan try/secretly put up the Star Wars Sat? O.K. we can play pretend planet conquest too. Fire a couple warning shots at Iran.

      --
      *Repent!Quit Your Job!Slack Off!The World Ends Tomorrow and You May Die!
    130. Re:Laser Beams by vlm · · Score: 1

      you'll never get a dense-enough region of gas to meaningfully deflect the beam.

      Don't need to, just need to defocus somewhat. Lasers are not high energy weapons. Lets say you take an industrial cutting laser around 100 watts, which would be a pretty nice cutter. Now you focus that to a zillionth of a cm and it cuts thru metal. defocus it to a tenth of a square meter... and it dumps 100 watts over a tenth of a sq meter, which is equivalent to a KW per sq meter, which is roughly as harmless as sunlight...

      Not to mention your attacker is going to be random-walking along with you to avoid return fire, which is going to make it pretty hard for the interceptor drone to be in the right place at the right time

      Nobody says you can only have one, I'm assuming you're allowed technology more advanced than an early cold war era homing torpedo, not seeing this as an issue.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    131. Re:Laser Beams by Anonymous Coward · · Score: 0

      Recoil compensators already exist for terrestrial guns: they work by porting some of the exhaust gases in useful directions. It shouldn't be beyond the wit of DARPA to figure out a compensator design that is effective at keeping you pretty still. And of course, it's rigged to your suit so the manevering jets cooperate.

    132. Re:Laser Beams by Anonymous Coward · · Score: 0

      I don't think you'll be able to use kinetics past a few kilometers of distance and I don't think you'll be able to get them to 120 km/s (actio = reactio, remember). Hell, the recoil from firing those bullets would be enough to kill any human crew on the vessel and even then your shots take half an hour to cross the .6 lightseconds that you put on the laser fight.

      On the contrary.
      Did you know that lasers aren't perfectly straight beams of light? They have a limitation on range, and it turns out that this range limitation is quite severe compared to the distances potentially involved in space warfare. Using the following calculator: http://www.5596.org/cgi-bin/laser.php

      Assumptions:
      200nm wavelength (This is the middle of the ultraviolet band, and it's not easy making lasers of smaller wavelength)
      10 meter lens (About as large as we can make them)
      Laser output of 250 MW (Using a ~1.5GW power source)

      At a range of 10,000 kilometers (About the diameter of the Earth), this will instantly vaporize 2mm's of aluminum over an area about the size of a dinner plate.
      A distance of 0.6 light seconds is ~180,000km's. Your 250MW laser (that essentially requires a nuclear reactor to fire) is nothing more than a flashlight at this range.
      The Moon is ~380,000km's away.

      In order to vaporize ~2mm's of aluminum at a distance 0.6 lightseconds, I had to increase the power output of our laser to 1 Terawatt. Mind, that's output. You need an input of 5 TW's to actually fire it. Then there's the waste heat... 50MW's of heat per second of firing the 250MW laser above. I'm not even going to bother listing the waste heat on 5TW's, you're pretty much turning into a molten glob if you fire that.

      Okay, that's lasers. What's the range on a projectile weapon? In principle, it's the same range as your spacecraft. You point in a direction, accelerate, fire your guns. The difference in velocity between your stuff and the enemy is what's really important here, so it doesn't matter if you can only fire bullets at speeds of ~1km/s if you can accelerate your spacecraft to 50 or 60km/s. Now the bullets are moving at 51 or 61km/s.

      But bullets are dumb and as much as you can estimate your enemy's movement, it's still going to take days or months for your bullets to actually get where you want at large inter-planetary distances. Effective range itself will depend on the speed of your projectile and the ability of the enemy spacecraft to change position quickly in a short time frame. More maneuverable enemy ships and slower projectiles reduce your effective range. The best approach here is to simply fill a lot of space near the enemy with a lot of bullets, hoping that one hits. The closer you are, the better, but you can theoretically fire from the orbit of pluto and hit a moonstation a few years later.

      Finally, the last weapon: Missiles.
      Same range as guns, with one important difference: They can propel themselves. It doesn't seem like it changes much until you consider that you can simply set them in a direction and let them drift until they make contact with the enemy, whereupon they lock onto targets and propel themselves into them. This solves the problem of projectile weapons being too inaccurate at long range, but missiles are a lot easier to destroy than bullets are. Especially with these powerful short-range lasers you have...

      These are the primary armaments of any spacecraft we can envision without "futuretech".

      Then there's armor. Spacecraft will most likely be around the size of submarines with the layout of a skyscraper. ('Down' is towards the rocket engine, there's no gravity remember!) This means that the best option is to armor the nose of the spacecraft as much as possible, with little left for the sides and nothing for the engine.

      Fuel is a big deal as well, as it determines how much accelerating you can do before you're dead in the water. Or space. It would be entirely possible for a crew to 'win' a space battle,

    133. Re:Laser Beams by jimbolauski · · Score: 1

      3. Recoil is easy to solve. Fire a blank in the oposite direction for every round.

      The recoil from the gasses expelling down a barrel of a gun will be no where near that of the gasses and the projectile you would need a much larger force to counteract the recoil from the projectile.

      --
      Knowledge = Power
      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    134. Re:Laser Beams by randomencounter · · Score: 1

      Attacked with: guns!

      --
      Forget diamonds, copyright is forever.
    135. Re:Laser Beams by jimbolauski · · Score: 1

      Nukes won't do much in space... there's nothing to propagate the shock wave, and heat transfer is all down to radiation. You'd have to hit the enemy ship directly with the nuke basically, which might be hard with all those lasers and anti missile guns going off...

      The US and USSR carried out high altitude nuclear explosion tests, they damaged and destroyed many satellites.

      --
      Knowledge = Power
      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    136. Re:Laser Beams by Whorhay · · Score: 1

      One hole, or even many isn't likely to have much immediate impact against a ship in space. The atmospheric pressures are pretty low so it'd take a long time for holes to disable a ships crew. Compartmentalization, reserves of oxygen, and simple foaming sealants could keep a crew going for a long time. To quickly remove their atmosphere you'd want either very large holes or a fire.

    137. Re:Laser Beams by Sperbels · · Score: 1

      I don't know. I've pulled apart a few bullets in my life to get at the powder (for fun) and you really have to work them out. I'm making an educated guess, but I'd say going from a pressurized saloon and then suddenly out into a vacuum with your six shooter probably wouldn't ruin your bullets.

    138. Re:Laser Beams by mcgrew · · Score: 1

      I'm pretty sure if you're very close to a neutron star, bullets are the least of your worries.

    139. Re:Laser Beams by Duhavid · · Score: 1

      3. Recoil is easy to solve. Fire a blank in the oposite direction for every round.

      What if you have multiple ships on your side behind you? You will be firing at them, potentially.

      --
      emt 377 emt 4
    140. Re:Laser Beams by Duhavid · · Score: 1

      In "Sundiver" David Brin posits the use of a laser to cool the ships headed into the Sun.
      I don't know if the physics really work,but it seemed plausible to me.

      --
      emt 377 emt 4
    141. Re:Laser Beams by Duhavid · · Score: 1

      Also, just remembered, in "Footfall", Niven/Pournelle send their Orion craft into space loaded with ice for cooling, IIRC.

      --
      emt 377 emt 4
    142. Re:Laser Beams by Runaway1956 · · Score: 1

      Precisely. We want to see damage similar to what a .45 dumdum does to a human body. Little hole going in, huge gaping void at the exit. Explosive and/or fragmenting ammo offers just that possibility. ;^)

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    143. Re:Laser Beams by raygundan · · Score: 1

      The laser can be "reloaded" in space. Ball bearings, pikes, and "long aluminum poles" are heavy and expensive for launch and maneuvering, will require even more energy expenditure to reach your suggested .01c, and when you run out, you're unarmed until you can be resupplied.

      Remember, too, that when you say "dropped as mines," it doesn't work like it does here. Anything you just drop out the back carries on with roughly the same velocity you had. You'll have a cloud of mines sort of hanging around your bomb bay until you change course. To "drop" it, you've got the same effective problem as launching a missile. There's no air or ground friction to cause them to remain where you leave them. They'll have to be accelerated at massive energy cost.

    144. Re:Laser Beams by fdrebin · · Score: 1

      To be fair, "recoilless rifles" weren't precisely "recoilless". Instead, they absorbed the recoil, and/or dispersed the recoil so that the gun wasn't moved from it's position on the ground. In space, that recoil will still have an effect on your trajectory.

      But, the first part of your post is on target. A good gunner will hit his target. An exceptional gunner and bridge crew will use that recoil to best advantage.

      Actually, there are 'recoilless' rifles (and guns), see http://en.wikipedia.org/wiki/Recoilless_rifle . I have personally fired them, having served in the US Army. They make one hell of a boom, as it's basically a tube open at both ends - projectile out one end, lots of hot gas out of the other. (I've known a few people like that too)
      /F

      --
      Stupidity... has a habit of getting its way.
    145. Re:Laser Beams by psydeshow · · Score: 2

      water is ALSO expensive as hell to put in orbit

      So we shoot SEWAGE then. Which has the added benefit that when the water evaporates there are still solid particles traveling at velocity.

      Bonus: even if hull penetration doesn't bring down the enemy ship, freeze-dried foreign bacteria rehydrate and bring down the life support system.

      Extra bonus: We shot them with our poo!

    146. Re:Laser Beams by mcgrew · · Score: 1

      DUUUUUUUDE... It doesn't need air!!!! The gunpowder has its own oxidant. I'm not too sure how modern gunpowder is made, but the gunpowder used since the ancient chinese invented it was a mixture of carbon, sulphur, and saltpeter. The saltpeter is the oxidant, and without it you have no explosive.

      The air has nothing whatever to do with a gunpowder explosion. It supplys its own oxidant.

    147. Re:Laser Beams by camperdave · · Score: 1

      Regardless if the gunpower needs air or not (and I agree that it doesn't), a bullet in space is still an enclosed container in a vacuum. There may or may not be enough internal pressure to pop out the slug.

      --
      When our name is on the back of your car, we're behind you all the way!
    148. Re:Laser Beams by fdrebin · · Score: 1

      Constructed properly that would work, see http://en.wikipedia.org/wiki/Recoilless_rifle

      --
      Stupidity... has a habit of getting its way.
    149. Re:Laser Beams by mcgrew · · Score: 1

      But recoil is proportional to involved masses: that's why the bullet goes out at high speed while you just notice a bump in your elbow

      You've never fired anything more powerful than a .22, have you? You have to keep a shotgun stock tight against your shoulder when firing or you'll have a hell of a bruise and your arm isn't going to work well for a while. Fire a 20 guage in space and the recoil is going to send you backwards pretty damned fast.

      It doesn't take much thrust to move a weightless object in a vaccuum. Oh, and it doesn't need oxygen; the oxidant is in the gunpowder. Don;t believe me? Light a cherry bomb, throw it in the toilet, and flush it. Not much oxygen in the sewer pipe.

    150. Re:Laser Beams by Oligonicella · · Score: 1

      "The main issue with using large guns in space is the recoil."

      Same thing on Earth. That's why only really big ships have really big guns.

      "Making a little pinhole in the side of a ship with a laser would be pretty effective in space..."

      It would be near meaningless on a battlecruiser sized vessel. The idea of holes in ships is way overblown, just like with airliners. There will only be 16psi pushing out that little hole. You could seal it with metallic tape. There will also be laser deflecting materials developed.

      A rail cannon could launch a package at immense speeds with two advantages. The package is (can be) just inert material and the energy signature would be more or less contained inside the vehicle. This could lend itself interestingly to combat.

      You could launch a rapid series of projectiles. The first N would electronically awaken part way there and deviate microscopically in all directions from trajectory. These are followed by a series of essentially pointed half-ton boulders of say, titanium.

      If they target the lead loads they'll not only not see the trailers if the ballistics are sound, but their destruction should provide coverage. Then you get perforated by bunch of really mean meteors.

      As for recoil. You can either use fuel and resist it or you can turn it into a tactically simultaneous retreat so you can see what happens. As this is a shit-load of energy and mass, recovery might take a bit as well.


      Fer instance.

    151. Re:Laser Beams by Oligonicella · · Score: 1

      I'm gonna have to assume that we're talking about a big enough distance into the future as well as space to consider hard vacuum battles taking place.

      So, I agree with you completely except that I think the manufacturing will also take place in space. I also think that we're talking about a war either elsewhere or against intruders because no one's gonna sit back and let an enemy interest assemble a battleship in orbit. The construction would be pot-shotted to death.

      If there is international space combat, it'll be those drones you mentioned no further out than orbit and shooting the shit out of each other like a fleet of amphetamine charged Halo-heads.

      I wouldn't really call that "battle".

      Shudder. I just heard that damned thirteen year old in the back of my mind.

    152. Re:Laser Beams by Bonobo_Unknown · · Score: 1

      Interesting, I am amazed at the EMP effect that these things had: "The worst effects of a Soviet high-altitude test occurred on 22 October 1962 (during the Cuban missile crisis), in ‘Operation K’ (ABM System A proof tests) when a 300 kt missile-warhead detonated near Dzhezkazgan at 290-km altitude. The EMP fused 570 km of overhead telephone line with a measured current of 2,500 A, started a fire that burned down the Karaganda power plant, and shut down 1,000-km of shallow-buried power cables between Aqmola and Almaty [5]."

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
    153. Re:Laser Beams by Carnildo · · Score: 1

      The problem with guns is flight time. Assume you're engaging the Space Shuttle at a distance of 100km using an M240 machine gun (muzzle velocity 850m/s), your bullets will arrive 117 seconds after you've fired. In that time, the Shuttle's OMS engines can move it 500 meters in any direction, far over its own length, so the only way you'll hit it is by pure chance.

      Meanwhile, the Shuttle returns fire with a self-guided AIM-54 "Phoenix" missile, which hits you about 10-15 seconds after launch.

      --
      "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
    154. Re:Laser Beams by toddestan · · Score: 1

      Actually, it could be a problem. Escape velocities for planets and larger moons is on the order of km/s. No gun I'm aware of can fire bullets that fast (at least using chemical propellants), which means any bullet you fire would go into orbit unless it was to strike something or enter the planet's atmosphere (if it has one). The weight of the bullet won't matter in a vacuum, and assuming nothing imparts a force onto the bullet its orbit will cross the orbit of wherever it was fired which means any bullets that miss their target could be a threat to the ship that fired them.

    155. Re:Laser Beams by Runaway1956 · · Score: 1

      Like some of the other posters, you don't seem to grasp the concept of "combined arms". Even with today's technology, which does not include ship-killing lasers, photon torpedos and the like, a warship would presumably mount multiple weapons. So - the shuttle has AIM-54 missiles at it's disposal? What else does your ship mount? Unless this is the very first time a Phoenix has been used in a space duel, we can presume that the ship mounting a machine gun also has some sort of ECM, maybe some flares, and just maybe a missile or two of it's own.

      The salt water destroyers I served aboard had machine guns, deck guns, rockets, torpedos, and missiles. Each weapon system had it's appropriate uses. Studying history, one finds that many a contest has been decided after the combatants on both sides have been seriously damaged, with the decision going to the side which still retains a functional close range weapon.

      It would be interesting to see just what weapons a government such as the US would put aboard a shuttle-like ship today, if they saw the need to do so. I'm quite confident that just like our aircraft, they would mount a machine gun or two along with any missiles and energy weapons. If that machine gun served no other purpose in a ship's lifetime, it would tend to discourage attempts at piracy.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    156. Re:Laser Beams by Carnildo · · Score: 1

      Like some of the other posters, you don't seem to grasp the concept of "combined arms". Even with today's technology, which does not include ship-killing lasers, photon torpedos and the like, a warship would presumably mount multiple weapons. So - the shuttle has AIM-54 missiles at it's disposal? What else does your ship mount? Unless this is the very first time a Phoenix has been used in a space duel, we can presume that the ship mounting a machine gun also has some sort of ECM, maybe some flares, and just maybe a missile or two of it's own.

      I'm not sure what else I'd mount, but all the offensive weapons would have one thing in common: they would be capable of mid-course trajectory changes. There's no point in lugging along something that can't hit the enemy.

      A machine gun doesn't even make a very good point-defense weapon unless you're in a situation where it's worthless as an offensive weapon. You can't "shoot down" an incoming missile, all you can do is disable the guidance system and maybe cause the missile to break up; you still have faster-than-a-speeding-bullet debris coming at you. Either you've got enough armor to shrug that off, in which case machine-gun fire isn't going to bother you, or you've got enough acceleration to dodge it, in which case machine-gun fire can't hit you.

      One thing you miss in "which side retains a functional close range weapon" is that unless you've crippled or destroyed the opponent, they retain a close-range weapon in the form of the ship itself. Practical machine-gun range isn't much greater than ramming range, and in a space combat situation, I wouldn't want to get close to an opponent's ship unless they'd surrendered or I was convinced the ship was a lifeless hulk.

      --
      "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
    157. Re:Laser Beams by Anonymous Coward · · Score: 0

      I'm willing to bet your destroyer didn't carry boarding pikes, didn't have a ram bow, and didn't go into battle with sharpshooters in the fighting top. There's "combined arms", and then there's "carry every weapon that might concievably be useful", and I expect machine guns on spaceships will fall into the latter.

    158. Re:Laser Beams by Anonymous Coward · · Score: 0

      Bolters. The projectiles will be self propelling.

    159. Re:Laser Beams by Anonymous Coward · · Score: 0

      "The wars in Iraq and Afghanistan suggest as much."

      This is because of a little concept known as "Rules of Engagement". Without these restrictions, a huge amount of damage could be done by the US/NATO to the insurgents, unfortunately along with a lot of other people, goats, etc. Fact is, US/NATO are fighting these wars with one or more hands tied behind their collective backs, while the enemy is pretty much enabled to use their inferior weapons without restraint. US/NATO have some other goals apart from "defeat the enemy" (which may not in fact be a current goal at all), whereas their foe has a much simpler and less restrictive set of goals.

      In the case of a war against aliens, my guess is that there would be few ROEs. And therefore any discrepancy between tech levels would likely be decisive. There wouldn't be much left to constitute a Resistance.

    160. Re:Laser Beams by mcgrew · · Score: 1

      "Pop out" the slug? You've never fired a gun, have you?

    161. Re:Laser Beams by Runaway1956 · · Score: 1

      Pikes, almost. They're called bayonets these days. Ramming bow? Uhhh - yes, the bullnose would indeed make a pretty damned good ram, if the captain decided that was his last chance to defeat the enemy. Sharpshooter? That was me. As a member of the multi-purpose "special units" detail, I was ship's landing force, boarding party, security detail, drill team, honor guard, captain's body guard, and any other special detail that anyone might dream up. Larger ships carry a detachment of marines - destroyer size ships rely on ship's company to handle all of those necessary details that the marines would handle on a larger ship. So, I carried an M-14 and a model 1911 Colt .45 as part of my duties.

      All those obsolete weapons that you can think of do indeed have their more modern counterparts aboard modern ships today.

      And, if/when the starship SS Enterprise is finally launched, she will carry the same sort of weapons. It's a shame that Star Trek ignored the necessity of grunts in the future.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    162. Re:Laser Beams by camperdave · · Score: 1

      I have fired several, from bb and pellet guns, 22s, up through 9mm, to a 44 magnum. None of that tells me how a bullet would respond to a vacuum.

      Now, if you were to say that a 9mm cartridge has a cross sectional area of 0.000064 m^2 and that an atmospheric pressure of 101.325 kPa would result in a force of about 6.5 newtons, or about a pound and a half of force trying to push the slug out of the cartridge. Then if you were to link to a site that said that the bullet extraction force is anywhere from 18-30 pounds, or a minimum of ten times the force of the pressure difference, then you could convince me of something. However, going on about gunpowder having its own oxidant and asking if I've fired a weapon means you have little grasp on the actual question: Will the normal atmospheric pressure inside the bullet push the slug out of the cartridge before the wielder gets to fire the weapon?

      --
      When our name is on the back of your car, we're behind you all the way!
    163. Re:Laser Beams by turbidostato · · Score: 1

      "You've never fired anything more powerful than a .22, have you"

      Yes, I did.

      "You have to keep a shotgun stock tight against your shoulder when firing or you'll have a hell of a bruise"

      Good to know there's nothing like a short gun firing anything larger than a .22. Those 9mm parabellum Glocks? I must dreamt of them.

      "Fire a 20 guage in space and the recoil is going to send you backwards pretty damned fast."

      Just about damn exactly the same as here, in Earth. Do you really think space has its own physics laws?

      "It doesn't take much thrust to move a weightless object in a vaccuum."

      It doesn't take much thrust to move a weightless object in an atmosphere, either. And with regards of weigthed objects, well, they take about the same thrust in a vacuum than in an atmosphere. Newton once told that f=m*a, he said nothing about vacuums.

      "Oh, and it doesn't need oxygen; the oxidant is in the gunpowder"

      No sir. The oxidant is the Oxygen.

      "Light a cherry bomb, throw it in the toilet, and flush it. Not much oxygen in the sewer pipe."

      You should take some basic classes on chemistry, I think.

    164. Re:Laser Beams by lennier · · Score: 1

      I strongly recommend that you take a look at the wikipedia article for inertia.

      What, he can't just fire up his Bergenholm and go free? Klono's carborundum drive-baffles, what kind of tin-plated cut-rate space navy are you guys running here? Next you'll tell me that you haven't upgraded from atomic fission to cosmic energy taps, or that your Fleet Navigation Computers aren't all attractive redheads.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    165. Re:Laser Beams by lennier · · Score: 1

      I agree, but missiles are vulnerable to getting attacked. Unless the missiles are armored...

      Dog, I heard you liked missiles so I put missiles on your missiles... on the missiles on your missiles!.

      Basically it's missiles all the way down.

      You don't want to be hit with one of the little gluon-sized ones, they really sting.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    166. Re:Laser Beams by lennier · · Score: 2

      Extra bonus: We shot them with our poo!

      And that's what happens when you give monkeys a monolith.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    167. Re:Laser Beams by lennier · · Score: 1

      Attacked with: guns!

      In space I guess you play rock-lasers-Mylar...

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    168. Re:Laser Beams by Anonymous Coward · · Score: 0

      I'll give you the bayonets ("a bayonet is a device used to turn a musket into a pike" and all that), but unless there's been a revolution in naval tactical thinking I'm unaware of, your ship did not have a ram bow.

      A ram bow is a specially armored and braced structure in the front of the ship designed to let the ship ram another without taking damage itself. It was popular from antiquity until the 1600s, when improvements in sail technology left the war galley's superior maneuverability hopelessly outclassed by the sailing ship's ability to carry a cannon broadside. The ram bow saw a brief revival following the American Civil War, owing to the CSS Virginia's performance against the USS Cumberland, but it fell out of favor again in the late 1800s after sinking far more friendly ships than enemy ones.

      You may have been a "naval sharpshooter" in the sense that you were trained in marksmanship, but I doubt that your job in combat against another destroyer would have been to climb to a platform high on your ship and attempt to snipe the captain, helmsman, and sharpshooters on the other ship.

    169. Re:Laser Beams by Seupsut · · Score: 1

      There are a few major draw backs with the usual suspects:
      Lasers: Create a lot of heat, hard to focus, but more importantly, can be deflected
      Projectiles: Over large distances (and I hear that space is vast) they would be easily shot down with the above mentioned lasers.

      Instead you use use stealth ships to close the gaps and fire projectile weapons at a range that would limit laser defense capabilities. The future belongs to the carrier!

    170. Re:Laser Beams by mcgrew · · Score: 1

      Good to know there's nothing like a short gun firing anything larger than a .22. Those 9mm parabellum Glocks? I must dreamt of them.

      A 9mm doesn't have the recoil of a shotgun.

      Just about damn exactly the same as here, in Earth

      That was exactly my point! Except on earth you have the planet's gravity keeping you in place, not so in space.

      It doesn't take much thrust to move a weightless object in an atmosphere, either. And with regards of weigthed objects, well, they take about the same thrust in a vacuum than in an atmosphere.

      Again, that was exactly my point, as was the rest of your post.

    171. Re:Laser Beams by turbidostato · · Score: 1

      "A 9mm doesn't have the recoil of a shotgun."

      I have to admit that not being English native I had to look for what exactly a shotgun was. Well, now I know and certainly I expect it having a stronger recoil than a short gun if only because of the greater payload (you see? mass again). But, please, pay attention that it was *you* the one specifically talking about shotguns and it was *you* the one throwing the strawman implying there's nothing in between a .22 caliber and a shotgun; I just talked about -as well as the parent post I was answering to, generic firearms.

      "That was exactly my point! Except on earth you have the planet's gravity keeping you in place, not so in space."

      I now I'm repeating myself but, yes, you need some entry level classes. Not only on chemistry but on physics too.

    172. Re:Laser Beams by Anonymous Coward · · Score: 0

      Lasers have no recoil and, in the case of UV frequencies are really, really hard to make mirrors for. The best known way of making such lasers involves frequency-doubler crystals like the old green laser pointers. You end up with a very very short (ns) pulse of several terawatts. This tends to make holes in anything. Even if you have enough thickness to stop it a few pulses will ruin your mirrored surface for a more readily blockable continuous laser to burn through.

    173. Re:Laser Beams by mcgrew · · Score: 1

      you need some entry level classes. Not only on chemistry but on physics too.

      You're the one who seems to not have heard of Newton's laws of motion or that you can burn stuff underwater or in a vaccuum with the right chemicals.

    174. Re:Laser Beams by powerlord · · Score: 1

      The "large" in "large guns" was not from my post. I used the word "guns". Unless, and until armored ships appear on the scene, a standard .30 caliber machine gun will be devastating to almost any spaceship.

      The Soviets equipped their space stations with 23mm aircraft cannons. That should be enough for everyone. :-)

      Good point. I'd assume the fact that they KEPT doing it, meant they probably tested it out once or twice and it seemed to work (backup emergency propulsion system? :) )

      --
      This space for rent. All reasonable inquiries will be entertained at proprietors discretion.
    175. Re:Laser Beams by Skal+Tura · · Score: 1

      Weight does matter on the acceleration of the bullet.
      In vacuum you don't have the friction of air, thus accelerating the bullet to extreme speeds is far easier.

      Escape velocity is also relational to the distance

    176. Re:Laser Beams by Lehk228 · · Score: 1

      in Weber's Honorverse most missiles are nuclear bomb-pumped xray laser warheads

      --
      Snowden and Manning are heroes.
    177. Re:Laser Beams by Lehk228 · · Score: 1

      and then someone takes a pot shot at you with an axial mounted Graser and the amount of energy successfully reflected back is so small it cannot even be detected, a property to be shared with the largest remaining bits of your ship.

      --
      Snowden and Manning are heroes.
  2. noise by Anonymous Coward · · Score: 5, Funny

    It would be a lot louder than what you see on TV

    1. Re:noise by Anonymous Coward · · Score: 0

      The real question is how much cheaper would space battle be than paying for ad battles before elections?

      Sometimes it feels like we're making the wrong use of both money and technology.

      http://www.engineeringradio.us/blog/2012/01/the-never-ending-hd-radio-debacle-continues-to-not-end/comment-page-1/#comment-16728

    2. Re:noise by MobileTatsu-NJG · · Score: 1

      I have watched a LOT of scifi over my life time and only once have I ever actually seen sound depicted in space. (Bonus points if anybody knows who the big offender was.)

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    3. Re:noise by Anonymous Coward · · Score: 0

      star wars

    4. Re:noise by MobileTatsu-NJG · · Score: 1

      Nope.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    5. Re:noise by maxwell+demon · · Score: 1

      Actually I've never seen sound depicted in space ...

      --
      The Tao of math: The numbers you can count are not the real numbers.
    6. Re:noise by MobileTatsu-NJG · · Score: 1

      Ever see Wing Commander? There's a bit where two space ships are hunting for each other, sort of like a submarine movie. The guys on one ship are talking in hushed tones as if the other guy's going to pick them up on their sonar or something.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    7. Re:noise by maxwell+demon · · Score: 1

      Ever see Wing Commander?

      No. But I'm still pretty sure you could only hear the sound there. There's a reason why I emphasized "seen" after all ...

      --
      The Tao of math: The numbers you can count are not the real numbers.
    8. Re:noise by MobileTatsu-NJG · · Score: 1

      What do you do with movies if you don't go see them?

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    9. Re:noise by maxwell+demon · · Score: 1

      With many movies it's:
      First, look in the cinema program, see there's a movie coming soon which looks interesting.
      Then, have no time to go to the cinema.
      Then, look in the cinema program again, to notice I have missed it.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    10. Re:noise by realityimpaired · · Score: 4, Insightful

      Only once have you actually seen sound depicted in space? And you say you've seen a *lot* of scifi? I've seen sound depicted in Star Trek and Star Wars, not to mention hundreds of other shows and movies. Firefly stands out from the crowd because it's the only one I can think of which actually depicted no sound at all in space.

      Or do you perhaps mean conversation? In that case, Spaceballs is the only one I can think of where characters actually carried out a conversation in space, without the benefit of space suits or any kind of environmental protection.

    11. Re:noise by MobileTatsu-NJG · · Score: 1

      I've seen sound depicted in Star Trek and Star Wars, not to mention hundreds of other shows and movies.

      Can you show me a Star Wars clip of a character reacting to a sound from space?

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    12. Re:noise by SteveFoerster · · Score: 1

      The original series Star Trek episode Balance of Terror had something similar.

      --
      Space game using normal deck of cards: http://BattleCards.org
    13. Re:noise by wiedzmin · · Score: 1

      How would noise travel in vacuum?

      --
      Bow before me, for I am root.
    14. Re:noise by Anonymous Coward · · Score: 0

      Yes but in space "no-one can hear you scream" !

    15. Re:noise by GPLHost-Thomas · · Score: 1

      Gosh, you're good! You can actually SEE sound. Are you Vulcan?

    16. Re:noise by Anonymous Coward · · Score: 0

      There aren't many movies that actually you can hear sound in space. Whooshes and explosions were added to make the scenes more interesting, much the same way music is. It is part of the presentation, not an episode of Beakman's World.

      It's depressing that this has to be explained to anybody around here.

    17. Re:noise by isorox · · Score: 1

      Only once have you actually seen sound depicted in space? And you say you've seen a *lot* of scifi? I've seen sound depicted in Star Trek and Star Wars, not to mention hundreds of other shows and movies. Firefly stands out from the crowd because it's the only one I can think of which actually depicted no sound at all in space.

      Firefly didn't have sound, but Serenity did :(

      Sure, the viewer hears sound, but there's no evidence that the characters can hear the sound

      Or do you perhaps mean conversation? In that case, Spaceballs is the only one I can think of where characters actually carried out a conversation in space, without the benefit of space suits or any kind of environmental protection.

    18. Re:noise by Anonymous Coward · · Score: 0

      Babylon 5.

    19. Re:noise by Anonymous Coward · · Score: 0

      If you hear space combat, it's probably not going well for you.

    20. Re:noise by Anonymous Coward · · Score: 0

      Shame, Q and Picard on the saucer ...

    21. Re:noise by Anonymous Coward · · Score: 0

      There's only two modes for the outcome of distance fights in space - complete miss or utter destruction.

      IMHO, if it ever comes down to fighting over useful targets, its going to come down to hand-to-hand combat in spacesuits.

    22. Re:noise by g0bshiTe · · Score: 1

      This, Firefly is the only one I can think that depicted no sound in space. Star Trek, Star Wars and many others also have sounds in space as well as explosions larger than life, Stargate also falls into that category.

      --
      I am Bennett Haselton! I am Bennett Haselton!
    23. Re:noise by Anonymous Coward · · Score: 0

      Star Wars and Star Trek never once said you can hear sound in space.

    24. Re:noise by Anonymous Coward · · Score: 0

      Chances are, space battles will consist primarily of lawyers and politicians slinging bits of paper at each other.

    25. Re:noise by Anonymous Coward · · Score: 0

      Look up the definition of the word, genius.

    26. Re:noise by MMC+Monster · · Score: 1

      Watch it again. The sound starts when the ships enter the atmosphere of the planet. (If you're talking about the major space battle near the end of the movie.)

      --
      Help! I'm a slashdot refugee.
    27. Re:noise by lennier · · Score: 1

      I have watched a LOT of scifi over my life time and only once have I ever actually seen sound depicted in space. (Bonus points if anybody knows who the big offender was.)

      Attack of the Clones, the "concussion bombs" in the the asteroid belt?

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    28. Re:noise by lennier · · Score: 1

      How would noise travel in vacuum?

      Very quickly.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    29. Re:noise by MobileTatsu-NJG · · Score: 1

      Nice! (and you undid one of my generalizations to boot!)

      Okay, make that two. The one I was thinking of was Wing Commander.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    30. Re:noise by wiedzmin · · Score: 1

      Wound you care to Google that, and revise your comment?

      --
      Bow before me, for I am root.
  3. Whatever you smoked... by Anonymous Coward · · Score: 0

    I want some of it.

  4. semi-hitchhiker's by alphatel · · Score: 1

    The equivalent of a diode, with billions of apps and micro adapters, warp cores, micro-nuclear power generators and packs a punch that would cause more damage than all of this little planet's resources combined.

    The war in space will be the smallest race.

    --
    When the foot seeks the place of the head, the line is crossed. Know your place. Keep your place. Be a shoe.
    1. Re:semi-hitchhiker's by pinfall · · Score: 1

      IPhone vs Android with great big pointy teeth!

  5. If the matrix taught us anything... by Anonymous Coward · · Score: 0

    There won't be any space combat, it will be tied into the matrix :)

  6. Space Debris. by Anonymous Coward · · Score: 1

    Lots and lots of space debris.

  7. swift, distant and anonymous by sg_oneill · · Score: 5, Interesting

    unmanned drones sniping the shit out of each other over ridiculous distances using lasers and maybe perhaps anti-matter "nukes".

    It would be brief, anonymous, and if any of the targets where manned, mercifully swift. It'd make a boring anime.

    --
    Excuse the Unicode crap in my posts. That's an apostrophe, and slashdot is busted.
    1. Re:swift, distant and anonymous by Fallingcow · · Score: 2

      Yeah, pretty much that.

      Little to no action inside line of sight. Probably a lot of use weapons that can hit indirectly (flak shells, nukes, etc.) Area denial (spreading a bunch of ball bearings all over the place) likely as a last-ditch MADD-type effort. My money'd be on cheap, small, one-time-use smart missiles being the most common weapon, probably just trying to get close enough to fire a ton of shrapnel in the direction of their target rather than actually hit it. As a rule, the bigger the object the faster it's dead.

    2. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      "My money'd be on cheap, small, one-time-use smart missiles being the most common weapon, probably just trying to get close enough to fire a ton of shrapnel in the direction of their target rather than actually hit it."

      So basically the same as how AA and SA missiles work now?

      except for the cheap part...

      I think that against the capital ships, they would be more like deep penetration munitions, more damage if they go off inside the vessel.

    3. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      You obviously havent watched Gurren Lagann then :P

    4. Re:swift, distant and anonymous by fermion · · Score: 5, Interesting
      Pretty much, which is why real space battles are not on tv.

      One show I think did do a good job was Babylon 5. The battles tended not to be overdramatic. In particular acceleration was used to accelerate.. There was use of kinetic bombardment which seems to be the consensus method to kill a planet.

      I think we are seeing the beginning of what space battles will be like. Namely, drones controlled by remote operators. I am sure we will see autonomous. drones playing a key role.

      --
      "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
    5. Re:swift, distant and anonymous by KDR_11k · · Score: 1

      I disagree on the antimatter, you need to put enormous amounts of power into that to produce it and then keep it stable somewhere. Chemical or nuclear energy storage is much simpler and cheaper because it's solid matter.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    6. Re:swift, distant and anonymous by KDR_11k · · Score: 1

      Depends on what a "capital ship" is. A space battle tank, sure. Something that's basically a big block of metal with a gun. Anything really large probably won't be able to have total armor coverage so it'd be vulnerable to shrapnel spreaders or regular HE munitions just like smaller drones. I don't think those would be more than mobile resupply and maintenance bases though (i.e. carriers) so they'd be kept outside of the battle. No reason to build big when you can build small and take fewer bullets that way.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    7. Re:swift, distant and anonymous by ultranova · · Score: 1

      unmanned drones sniping the shit out of each other over ridiculous distances using lasers and maybe perhaps anti-matter "nukes".

      Once you have weapon-grade lasers, how are anti-matter warheads viable weapons? Seeing how anything trying to get close would be a prime priority target precisely to shoot them down.

      For that matter, what current or near-future technology do you propose would be used to manufacture the antimatter in these warheads?

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    8. Re:swift, distant and anonymous by Samantha+Wright · · Score: 1

      MADD: Mutually Assured Drunk Driving? :)

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    9. Re:swift, distant and anonymous by vlm · · Score: 4, Interesting

      Once you have weapon-grade lasers, how are anti-matter warheads viable weapons? Seeing how anything trying to get close would be a prime priority target precisely to shoot them down.

      Cool them down to 2.7 kelvin with liq He, make them outta composite plastic or whatever, toss them out like mines. Can't see them in IR because they're as cold as space. Can't lidar them because they're black. Can't look for occultation because they're too small. Hmm.

      Hit one, it blows up into a big cloud that you can't laser thru for a couple seconds at least and who knows whats coming behind it, such as say a railgun drone hiding off axis watching the whole thing who now knows exactly where you are. Don't hit one and it blows up your ship on contact. Something to think about.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    10. Re:swift, distant and anonymous by khallow · · Score: 1

      Once you have weapon-grade lasers, how are anti-matter warheads viable weapons?

      What's supposed to happen when you shoot a warhead?

      For that matter, what current or near-future technology do you propose would be used to manufacture the antimatter in these warheads?

      Humanity has a lot of energy to play with. I'd be more worried about storing it. Antimatter is unstable in a way that nothing else is. Enough antimatter to kill something in space is going to be really dangerous to store.

    11. Re:swift, distant and anonymous by ppanon · · Score: 1

      I want my anti-matter warheads to be made out of anti-matter. Doped anti-sillicon for the control chips, anti-carbon fibre for the structural components, etc. Make the first third of that rocket ablative armor made out of anti-iron. Somebody tries to boil it off with a laser while it's evading and all theyre doing is generating a cloud of antimatter in their path. Transporting the missiles to the battle field is left as an exercise to the reader :-).

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    12. Re:swift, distant and anonymous by Baloroth · · Score: 1

      I was thinking you could build a rail gun that used nuclear shells. Accelerate the round to reasonably fast, then you detonate a second or so before you get near the enemy ship, and the high-speed fireball vaporizes anything in a cone in front of it (like a nuclear shotgun blast). Makes point defenses absolutely worthless. If you made it into a disposable robotic launcher, you wouldn't even have to worry about the recoil.

      In any case: nothing like in a movie.

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    13. Re:swift, distant and anonymous by skids · · Score: 1

      I seem to recall reading an article that claimed lasers only get so strong because even in free space, beyond a certain energy density they would form particles in their own path and as such disrupt themselves.

      Question is whether your anti-matter warheads can withstand that. Really though the question is will they be stealthy enough to prevent someone from dodging them, given sensors will be outpacing propulsion for the forseen future.

      My money is on giant monofiliment nets placed like a minefield. Not because they'd be especially effective, but because that seems like one of the nastiest things we could litter space with, and it would be in our character to totally make a mess.

    14. Re:swift, distant and anonymous by qeveren · · Score: 2

      Kind of a waste of time, though, isn't it? I'd be cheaper and just as effective to throw high velocity normal matter at the target.

      --
      Don't just stand there, get that other dog!
    15. Re:swift, distant and anonymous by newcastlejon · · Score: 1

      I think you missed the point. The idea isn't to use antimatter for storage; it's to hurl actual pieces of antimatter at the enemy. I think Niven touched on this in one of the later Ringworld novels.

      Mirrors and physical armour would provide no defence, though if you're using charged antiparticles there's a possibility that one could deflect them with some sort of electrostatic field gizmo.

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    16. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      one-time-use smart missiles

      Missiles are weapons that explode upon impact with (or close proximity to) the target. I think it's safe to say they aren't generally thought of as reusable to begin with.

    17. Re:swift, distant and anonymous by newcastlejon · · Score: 1

      Enough antimatter to kill something in space is going to be really dangerous to store.

      Perhaps, but I'll bet it's a lot easier in free fall. That would naturally be irrelevant if you want to move your battleship, so if AM is going to be used in significant quantities I think it's likely that it would be in some sort of mine or stationary/orbiting gun platform.

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    18. Re:swift, distant and anonymous by tigersha · · Score: 1

      Liquid He antimatter droplets would do just fine.

      --
      The dangers of excessive individualism are nothing compared to the oppressiveness of excessive collectivism
    19. Re:swift, distant and anonymous by idontgno · · Score: 2

      Oh, yeah, antimatter "bullets" used by ARM (human, United Nations) warships. Presumably, railgun or some other kind of non-exotic kinetic acceleration.

      It appeared in that case the antimatter was in the form of anti-particle analog for conventional solid baryonic matter (i.e., antiproton/neutron nucleus, positron shells). Mined from the antimatter world from "Flatlander".

      And if you remember, one ship missed its target and blew a sizeable hole right through Ringworld's ring. This emphasizes the enduring risk of using unguided kinetic energy weapons in a universe dominated by Newton's First Law. Of course, humanity's pretty bad at considering that kind of risk, as proven by the mere existence of the phrase "collateral damage" as a standard part of our military vocabulary.

      --
      Welcome to the Panopticon. Used to be a prison, now it's your home.
    20. Re:swift, distant and anonymous by Anonymous Coward · · Score: 1

      The thing I REALLY liked about Babylon 5's approach to space combat was that they made a point of showing that the ships were not even close to being in visual range of each other! Star Trek by comparison, always felt a bit cheesy to me, as they seemed to be trying to recreate old naval combat in outer space. You would see two ships come right up to each other and blast away until one ship's shields failed or was completely blown apart. The other aspect that Babylon 5 NAILED is that when facing a hostile alien ship, you are never going to go up against an alien with the exact same level of technology! Space combat with aliens, by it's very nature, is going to be unbalanced! You are either going to clean their clock, or have your ass handed to you in short order!

    21. Re:swift, distant and anonymous by marcosdumay · · Score: 1

      Don't throw them in pieces. Spray them as small particles (better if anti-He atoms - or is it He anti-atoms?), then it doesn't matter that the oponent detected them, he can't dodge on time, and can't really destroy a cloud comming into him at a nice percentage of the speed of light.

    22. Re:swift, distant and anonymous by bejiitas_wrath · · Score: 1

      Or the space battles could just be like ancient battles on the sea with cannons poking out of the side of the ship, or out the front that fire conventional shells. Surely an extremely powerful shell that fired a depleted uranium sabot round would take out a realistic warship. We are not going to have unobtanium armour or force fields in reality. I wonder if we could create Lensmen in real life though with training. We would not have thought shields in reality, so being able to see what the enemy is planning would really help out in a battle. But an electromagnetic railgun would make a mess of a spaceship easily. And with hand to hand fighting in spacesuits a Rapier would be a perfect weapon, rip a spacesuit with a thin sword and the enemy is no more...

      --
      liberare massarum ex ignorantia, clausa descendit molestie.
    23. Re:swift, distant and anonymous by fuzzyfuzzyfungus · · Score: 1

      Arguably, the 'distant' bit would be so overwhelming that it would cancel out the 'swift'...

      With the exception of cases involving factions in the same gravity well frying one another's satellites, which would indeed be nice and fast, any sort of conflict(barring technology that brutally violates the presently suspected laws of physics) would likely be a decades-to-generations affair. Within the solar system, most objects of interest are a few light-minutes away from one another, so even combatants using lasers or similar would be deprived of any 'instant hit' weapons. Between solar systems, you would be talking anywhere from 4ish to tens or thousands of years. Anything based on matter(whether projectiles or invasion ships) would of course be slower, probably far slower(although, probably extremely hard to detect for the vast majority of their journey).

      What would be very interesting, and give any cryogenically frozen and revived Cold-War game theorists their stab at relevance, would be the implications for diplomacy: Because of the distances involved, conversation of any sort could take decades and would be precisely as fast as the fastest available weapons. There would be the oh, so, very, delightful potential for all sorts of situations where both parties would be left to twiddle their thumbs for years, not knowing whether a friendly greeting or a planet-annihilating x-ray pulse is heading their way, with no way to communicate further(and, even if there were, a beam of light or a kinetic-kill projectile travelling at a modest fraction of the speed of light couldn't be called back once launched).

      At modest distances, it'd be lots of probabilistic number crunching trying to put the projectile where you expect the enemy to be(or at least force the enemy to burn mass deviating from their inertial/gravitational trajectory). At longer distances, it would be long periods of adrenalized tedium, sweating bullets and deciding whether to do unto others lest they do unto you without any way of knowing what others are or aren't doing unto you until it is too late...

    24. Re:swift, distant and anonymous by SteveFoerster · · Score: 1

      And, of course, they had seatbelts.

      --
      Space game using normal deck of cards: http://BattleCards.org
    25. Re:swift, distant and anonymous by Grishnakh · · Score: 2

      No, I don't think drones will work very well in space, unless you invent some sort of FTL communication system. Drones work OK here on Earth because the distance for radio waves to travel between any two points on the planet is fairly short (and even then, I seriously doubt a drone piloted by a guy in Nevada will be much match for a manned fighter jet over the middle-east somewhere, because of communications delays). In fact, the main reason drones are such a big thing now is because the US is engaged in asymmetric warfare: its enemies have very primitive military technology, so advanced fighter jets don't do much good for dealing with their guerrilla warfare tactics. In space combat, that's completely different; obviously, both sides would be pretty close to on par.

      Anyway, in space, we're probably looking at much larger distances. It takes radio waves 15+ minutes to travel one-way to Mars, which is why our rovers there are semi-autonomous.

      Now of course, if they come up with autonomous space fighter craft with onboard AI pilots, then I guess that might work.

    26. Re:swift, distant and anonymous by Fallingcow · · Score: 1

      God damnit.

      I swear I'm not as stupid as that made me look.

    27. Re:swift, distant and anonymous by Samantha+Wright · · Score: 1

      It's okay. It produces amusing images of stern middle-aged women berating starship admirals and heads of state for the excessive armaments of the fleet.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    28. Re:swift, distant and anonymous by slashmydots · · Score: 1

      I see where you're going except that antimatter reactions simply give off immense energy. That's not enough to exceed the speed of light. So yeah, you could fire some pretty epic lasers with the energy or any other directed energy weapon or fire the antimatter itself but if you're in space, you can probably travel faster than light. If you open a wormhole (like jumpgate/warpgate sci fi) or bend space in front of and back of your space ship (like star trek, sort of), both of those would utterly destroy another ship without any way to defend it. I mean if you open a wormhole directed through the middle of their ship or with the opening residing within their ship depending how a 3d to 3d interface zone really acts, that probably wouldn't go real well for them. If you bend the space around them by creating a "warp field" like in Star Trek, the matter would get all bent out of shape with it so there goes their hull. I think both are a lot more realistic than any space-based show. At least Halo 2 showed what happens when a spaceship hovering above a city jumps to "hyperdrive" or whatever. It blew a freakin chunk out of all the matter around it :-D

    29. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      Spray gas ahead of you. (Your rocket motor will work for this, but the gas doesn't have to be hot.) Antimatter nuggets react with even the most tenuous gas, shining brightly in 511 keV annihilation radiation.

      If the mines aren't pure antimatter, but have a matter-based casing, then the containment system is going to generate heat, and they'll be a lot hotter than 2.7 K.

    30. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      Ohhhhhh...THIS is why real space battles are not on TV.

      Thanks for clearing that up.

    31. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      The problem with all these options (or at least the first hundred, I stopped reading after that), is you're forgetting the reason for fighting. People fight over resources, and resources are no good without someone there to exploit them. That means at some point, you have to have a large crowd of people moving to the target to occupy it. As Iraq and Afghanistan and Vietnam etc all taught us, you can't win a war from a safe distance unless your goal is the complete annihilation of everything on the other end. That's great in WWII, but not so good if you want resources or to win over or liberate people. So, remote weapons, maybe, but gotta have the big ships filled with ground troops in there somewhere...

    32. Re:swift, distant and anonymous by shagie · · Score: 1

      In Dread Empire's Fall series, this is handled by having a pilot in a small ship that stays within a few light seconds of the missiles (AI was one of the things that the Shaa prohibited). The idea being that an antimatter missile (the prime weapon of the series) will take out a ship no matter how big. Part of the interesting bit of this series is that aside from infrastructure and wormholes - the tech used is imaginable (slingshots around gravity wells, having to burn in the other direction to slow down rather than magically stoping).

      (not exactly related to the issue, bug a good series nonetheless)
      In the Star Carrier series, small manned ships were the primary thing, accelerating to near C and then releasing a kinetic slug just before decelerating. One technique employed was launching what was intended to be anti-missile 'sand' in a wide dispersion (again, at near C) which took out a number of large ships and crippled the rest. The physics of this series is a bit more out there (makes use of the Alcubierre drive and highly advanced physics to accelerate to near C within a few minutes).

    33. Re:swift, distant and anonymous by Jeremi · · Score: 1

      Pretty much, which is why real space battles are not on tv.

      Have there ever been any real space battles? The only one I can think of was between China and their own (unarmed) satellite, but that hardly counts...

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    34. Re:swift, distant and anonymous by Grishnakh · · Score: 1

      For that last one, you'd need some "inertial dampers" from Star Trek to accelerate to near c within a few minutes if there's a human on board. Humans can't take more than single-digit accelerations (in g).

    35. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      If the mines aren't pure antimatter, but have a matter-based casing, then the containment system is going to generate heat, and they'll be a lot hotter than 2.7 K.

      Passive containment with permanent magnets is possible for heavy anti-matter, e.g. by flux pinning in a type-II superconductor such as anti-MgB2, or diamagnetic levitation of e.g anti-H2O. Of course, heavy anti-matter is currently unfeasible to produce at all, but anti-hydrogen atoms are unfeasible in militarily-useful quantities, so the breakthroughs required may make it a possibility...

    36. Re:swift, distant and anonymous by Mindcontrolled · · Score: 1

      I think the inertial damper is inherent to the Alcubierre concept. It is, after all, not your ship that is accelerating, but a space-time bubble surrounding your ship, which stays at rest relative to the surrounding space.

      --
      Ubi solitudinem faciunt, pacem appellant.
    37. Re:swift, distant and anonymous by Anonymous Coward · · Score: 0

      Pretty much, which is why real space battles are not on tv.

      One show I think did do a good job was Babylon 5. The battles tended not to be overdramatic. In particular acceleration was used to accelerate.. There was use of kinetic bombardment which seems to be the consensus method to kill a planet.

      I think we are seeing the beginning of what space battles will be like. Namely, drones controlled by remote operators. I am sure we will see autonomous. drones playing a key role.

      Good points, but I really don't think we'll see drones used as much as people would think. Certainly not remote-control ones... there is simply too much communications delay for one thing. For another, you wouldn't want to give away your broadcast position by using a wide-angle signal, and narrow-band communications would be extremely difficult to keep oriented.

      I think that until we see technology really advance far ahead of where it is now, the biggest obstacle will simply be to find your target, and the biggest obstacle to defense will be to detect the incoming projectiles/warheads. There are a variety of different approaches which would be viable against some targets/attacks and useless against others, so the number one 'weapon' will be knowledge of your opponent's systems and defenses and the ability to custom-tailor and attack or defense to each situation.

      In terms of what weapons would be used, honestly I think I'd go for a railgun as the 'bread-and-butter' weapon of choice. Easy to aim, you don't have to carry bulky fuel and rocket.... just use stored energy from the usual sources. The counter-thrust from firing can be compensated for by directional thrusters on the launch platform itself. Almost impossible to detect coming at you, and at least for the present there's not much you can do to armor against a series of incoming 'rounds'.
      I suppose rockets would be viable in some situations, but expense in terms of mass and room, and slow and obvious when firing them at a target.
      I would guess there would be an entirely different class and design of weaponry for attacking relatively stationary craft such as satellites and orbital stations than what you'd use for attacking other more mobile long-range craft.
      As for attacking ground or moon-based stations, that's obvious and simple: Nuke it from orbit, multiple small warheads.

      But overall, I think it would be back to the basics- he who can put more "lead" on target, first and faster, is going to win.

    38. Re:swift, distant and anonymous by the_arrow · · Score: 1
      --
      / The Arrow
      "How lovely you are. So lovely in my straightjacket..." - Nny
    39. Re:swift, distant and anonymous by Neil+Boekend · · Score: 1

      Assuming a ferromagnetic solid antimatter is used storage is a breeze. There will be a max G-force rating on the containers and you really don't want to exceed that.
      Straight out of the magnetic confinement into a coil gun would sling it nicely to the baddies.

      Now production of antimatter pellets is what's the difficult part. Humans currently don't produce a lot of energy if you are trying to create pellets of antimatter. If you assume we need 1 kg of antimatter pellets:
      This will contain 9×10^16 J of energy.
      Current production works with an efficiency of 1x10^-10. This means for each joule worth of antimatter 10,000,000,000 joules is used.
      To produce this kg we would currently need 9x10^26 J of energy.
      We are producing about 20,000 TWH of energy each year. This is 72 x 10^18 J.
      Thus, with the current production we would need 12,500,000 years worth of energy.
      Radiating the amount of heat generated while producing (remember the eficciency of 1x10^-10?) away within a year means the surface of the earth would have to be liquid rock and generally not a fun place to be.

      Warning: this is messing with large numbers. Small mistakes in my calculations may result in mistakes of a factor one million or even more. Feel free to correct me if I am wrong.

      --
      Well, I might have a way, but it only works on a semi spherical planet in a vacuum.
    40. Re:swift, distant and anonymous by Ihmhi · · Score: 1

      Yeah, pretty much that.

      Okay, let me posit a situation using the Standard Gundam Thesis of "United Army of People from Earth" and "United Army of People Living in Colonies".

      There is a very large space station (colony) sitting at Lagrange 1. We'll call that C. Earth will be called E. Earth and the Colony have two spaceships duking it out, labelled as Es and Cs respectively. Now look at this helpful ASCII diagram:

      C . . . Es . . . Cs . . . E

      The Earth ship is in-between the Colony ship and their colony, and the Colony ship is in-between the Earth ship and our favorite little blue marble. If either side fires a railgun, tactical nuke, etc. then there is the very real chance of it missing and impacting the thing they really care about behind the enemy ship.

      Are you so sure that they would still fire flak, railguns, missiles, lasers, etc. indiscriminately?

    41. Re:swift, distant and anonymous by Ihmhi · · Score: 1

      No, I don't think drones will work very well in space, unless you invent some sort of FTL communication system.

      Who says you have to control them in real-time? Treat them more like really, really smart bombs. Fire them off and they swarm and attack an enemy ship. The only signals you'd need to worry about are "recall" and "cease fire".

    42. Re:swift, distant and anonymous by ppanon · · Score: 1

      Kind of a waste of time, though, isn't it? It'd be cheaper and just as effective to throw high velocity normal matter at the target.

      Depends on how you get those warheads. If you manage to establish a tunnel to an anti-matter universe and trade with beings in that universe, then it could come out pretty cheap, with a bonus that you could trade your most toxic garbage afterwards for power generation. You also don't need to worry much about them wanting to invade this universe.

      As for "just as effective", do you really think that kinetic weapons are going to pack the same punch as equivalent anti-matter? You have to bring all the projectile mass for those kinetic weapons with you to the battlefield. That's a lot of delta-vee. Those anti-matter missiles could be the size of a pinhead and pack the punch of a tactical nuke.

      --
      Laissez lire, et laissez danser; ces deux amusements ne feront jamais de mal au monde. - Voltaire
    43. Re:swift, distant and anonymous by justforgetme · · Score: 1

      don't get misled by the term "line of sight".
      Most probably such events (space wars) will be televised via a virtual, albeit
      real looking, representation. So the combatants will still be able to be
      displayed on the same limited display surface. As for participants I would put
      a lot of money on them being able to see as far as they can target. The only
      ones that will be unable to tell what the $#@ is going on will be the poor
      civilians that were nuked into a lower tech scale and random near positioned
      lower tech civilizations that happen to be in proximity by chance and weren't
      important enough to relocate for the war effort (like us lot!).

      --
      -- no sig today
    44. Re:swift, distant and anonymous by Duhavid · · Score: 1

      "Transporting the missiles to the battle field is left as an exercise to the reader"

      Make the ship and the people in it out of antimatter! Ha!

      --
      emt 377 emt 4
    45. Re:swift, distant and anonymous by bgnad · · Score: 1

      >how are anti-matter warheads viable weapons?
      Two words: Proximity Kill

    46. Re:swift, distant and anonymous by rtb61 · · Score: 1

      Really it's drones versus mines, as it side tries to take out the others sources of supply.

      Silly enough to launch space war, silly enough to make it genocidal.

      Consider stealthed, interstellar high yield nukes designed to target random areas of the planet, and what they don't blow up they make uninhabitable due to radiation. Consider them to be a fail safe, designed to target the hostile worlds over the next few centuries after launch, even in you lose. Consider them mass produced and having thousands in flight.

      When it becomes genocidal, everyone abandons their planets (excluding the unlucky many) and it's fleets versus fleets, darting in and out of nebulas to hide, refuel and rebuild. Home worlds where all life is extinct and nothing much left to fight.

      Then consider highly advanced third parties who consider those willing to take conflicts out into space a threat and take measures to reset social evolution to see, if they can be less hostile the next time around. Most likely space wars, simple genetic culling, prior to hostilities actually becoming interstellar. Apart from maybe poachers and pirates, those outside the main stream of their societies, on the run and hunted by many.

      --
      Chaos - everything, everywhere, everywhen
    47. Re:swift, distant and anonymous by khallow · · Score: 1
      I see problems with assumptions you make.

      Assuming a ferromagnetic solid antimatter is used storage is a breeze.

      and

      Current production works with an efficiency of 1x10^-10.

      For the first, you still have the problem of what to do when that easy storage fails (say because it got hit by an antimatter bomb).

      And why talk about current inefficiency of antimatter creation while simultaneously speaking of a non-existent capability to turn that antimatter into a particular form?

      I could assert with similar credibility that an energy conversion of 50% (rather than 10^-10) is just as likely as storage of antimatter in large amounts as a ferromagnetic substance. That turns the 12.5 million years of current human energy production into about 5.5 hours of current human energy production.

  8. Given the vastness of space... by AngryDeuce · · Score: 5, Insightful

    My prediction: slow and boring.

    1. Re:Given the vastness of space... by vlm · · Score: 4, Insightful

      My prediction: slow and boring.

      Based on my experience in the military 20 years ago, it will remain the same as today... 99.99% boring as all hell; a bad dilbert cartoon would be better, and 00.01% holy cow. The more things change, the more they remain the same.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:Given the vastness of space... by gnick · · Score: 1

      The more things change, the more they remain the same.

      It has happened before, it will happen again.

      --
      He's getting rather old, but he's a good mouse.
    3. Re:Given the vastness of space... by lennier · · Score: 1

      It has happened before, it will happen again.

      That's certainly one explanation for the asteroid belt where there ought to be a planet, and why Venus is greenhoused...

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    4. Re:Given the vastness of space... by Kained · · Score: 1

      Can't see any dog fights really. Surely everything would be fought along straight lines. :\

    5. Re:Given the vastness of space... by __aajfby9338 · · Score: 3, Insightful

      Decades of boredom punctuated by nanoseconds of hard radiation.

    6. Re:Given the vastness of space... by Anonymous Coward · · Score: 0

      I agree. But the single shots will be nearly impossible to block (there is limitless directions a trajectory (missile, laser?)) It's hard enough for us to just protect a 2d map. It becomes a matter of positioning... Finding the opponents position and then deciding when is the most advantageous time to attack.. The best will be the off-the-wall tactics that will be employed by smaller or possibly even just more clever adversaries: hiding bomb-like devices in space debris... Space depris is everywhere so it wont be a #1 priority for the defender to intercept that little piece of astroid... So yea it's been pretty fun just musing the ideas.

    7. Re:Given the vastness of space... by Anonymous Coward · · Score: 0

      Except when something happens...then it will be lethal. No need for triage.

    8. Re:Given the vastness of space... by jamesh · · Score: 1

      I dug out dosbox and Wing Commander a few months ago... and i'm guessing the answer to the question would be "nothing like Wing Commander".

      All the space games i've ever played (which isn't that many) have been more like playing under water, with speed measured as an absolute, and constant forward motion requiring fuel.

    9. Re:Given the vastness of space... by newcastlejon · · Score: 2

      My alternative prediction: over in seconds, but planned ahead days/months/years* in advance.

      *Orbits are like that.

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    10. Re:Given the vastness of space... by Mashiki · · Score: 1

      My guess. Knife-fight range, in other words not much difference then what we saw in the days of battleships and dreadnaughts on the highseas. Both sides hammering the living fuck out of each other with smaller ships on each side trying to maneuver in to cripple the larger vessels, while trying to pop each other off..

      --
      Om, nomnomnom...
    11. Re:Given the vastness of space... by Anonymous Coward · · Score: 0

      I'd guess it would be more like Sins of a Solar Empire. No actual fighting in space as everyone is in warp. All the fighting will still be done on planets or planets firing large things at other planets.

    12. Re:Given the vastness of space... by gmhowell · · Score: 1

      My prediction: slow and boring.

      Based on my experience in the military 20 years ago, it will remain the same as today... 99.99% boring as all hell; a bad dilbert cartoon would be better, and 00.01% holy cow. The more things change, the more they remain the same.

      I'd bet that the Trojans had similar thoughts. Sumerians. Etc.

      --
      Jesus was all right but his disciples were thick and ordinary. -John Lennon
    13. Re:Given the vastness of space... by Grishnakh · · Score: 1

      Sorry, but a quick google search shows the total mass of the asteroid belt is estimated to be only 4% of the mass of our Moon. That's not enough mass for a planet, maybe a dwarf planet. Half of this mass is contained in 4 asteroids, one which is the dwarf planet Ceres. Even if you put all this mass back together into a single body, it would have so little gravity and size it wouldn't be really usable as a planet. Warfare is almost certainly not the cause of the asteroid belt.

    14. Re:Given the vastness of space... by ceoyoyo · · Score: 1

      Try Independence War with the autopilot aid turned off.

    15. Re:Given the vastness of space... by Anonymous Coward · · Score: 0

      If you could ask some soldier in Caesar's legions, he would tell you a very similar story.

      Only they walked a hell of a lot more.

    16. Re:Given the vastness of space... by GameboyRMH · · Score: 1

      Even today's air combat looks pretty boring most of the time. A plane cruising along and occasionally firing a missile.

      The History Channel, before it went to shit, had a feature speculating on combat between two suborbital fighters. It was pretty boring, they both cruised along out of sight of each other, one blew a hole in the other with a laser. Not even the excitement of a missile.

      As technology improves air combat will become less of a spectacle. It's all been downhill since WW1.

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    17. Re:Given the vastness of space... by Anonymous Coward · · Score: 0

      "It had all seemed like one of Brennan's dry runs, except that it took even longer."

  9. Peers? by Anonymous Coward · · Score: 0

    What makes you think we are your peers? You Earthlings are pitifully weak, un-evolved, and generally dull-witted ...

    1. Re:Peers? by Anonymous Coward · · Score: 0

      Says the one who couldn't even get first post...

  10. Are we talking human on human battles? by danbert8 · · Score: 3, Interesting

    I'm pretty sure space combat would consist of humans trying to kill each other in space considering if there are aliens, we are unlikely to ever meet them, and if they make it this far, they aren't going to waste their precious resources trying to kill us.

    And as far as mankind on mankind action, I'd guess it would amount to throwing small masses at high velocity at each other (throwing rocks in a glass house).

    --
    Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    1. Re:Are we talking human on human battles? by snarkh · · Score: 4, Insightful

      > and if they make it this far, they aren't going to waste their precious resources trying to kill us.

      Actually, if they make it this far, killing us (if they are inclined to do so) would be a trivial exercise, like shooting fish in a barrel.

    2. Re:Are we talking human on human battles? by dcollins · · Score: 4, Insightful

      Better comparison -- Like spraying insecticide on an ant nest.

      --
      We know where leadership by an anti-intellectual "strongman" who scapegoats minorities and likes boisterous rallies goes
    3. Re:Are we talking human on human battles? by snarkh · · Score: 1

      I have also thought about that comparison, but decided against it. Ants have a tendency to spread, but fish are constrained in a barrel, just like us on Earth.

    4. Re:Are we talking human on human battles? by mikael_j · · Score: 5, Interesting

      Every time someone makes that argument I think of stories like The Road Not Taken (summary: aliens show up, detect no FTL drives on earth, conclude we'll be an easy target, land, try to take over using matchlock weapons, get slaughtered, humanity realizes what a bunch of idiots we've been for not figuring out FTL travel on our own, galaxy is fucked....)

      --
      Greylisting is to SMTP as NAT is to IPv4
    5. Re:Are we talking human on human battles? by betterunixthanunix · · Score: 2

      And as far as mankind on mankind action, I'd guess it would amount to throwing small masses at high velocity at each other (throwing rocks in a glass house).

      Doubtful -- distances get pretty big pretty fast in space. I would think of something more like "grapeshot," mounted on a radar or laser guided missile with a proximity fuse. Then, once a spacecraft was destroyed, all the other spacecraft would run away to avoid being hit with debris. Expect plenty of electronic warfare, since communicating is going to be even more important when trying to organize battles in space.

      I also envision lots of really interesting technologies. Long range communication or radar on arbitrary frequencies (because there is no atmosphere or terrain)? Passive radar using solar radiation? Missiles that use rocket engines to change direction? High powered lasers used for missile guidance? Lasers in the microwave range? Drones that can swarm a spacecraft?

      Of course, it may turn out that general space battles are not worth the expense, and that we will see mostly orbital battles, with ground stations providing support. Perhaps orbital battles around the moon too, should military lunar bases be built (in which case you would probably see a lot of ground-to-orbit battles, since the moon itself would be an excellent launching platform for attacks). One thing that I think is clear is that strategies for space combat are going to be a lot different from the strategies using in naval or air combat right now.

      --
      Palm trees and 8
    6. Re:Are we talking human on human battles? by noh8rz2 · · Score: 1

      but fish are constrained in a barrel, just like us on Earth.

      didn't you read the original question? Everything presupposes we're in space for space battles. What makes you think we would be limited to earth? What makes you think that the space battle would happen in earth's orbit?

    7. Re:Are we talking human on human battles? by snarkh · · Score: 2

      Thanks for pointing that out, seems like an amusing story!

      But probably not very likely. Thing about even our human history -- ability to sail long distances correlated pretty strongly with superior weaponry and technology.

    8. Re:Are we talking human on human battles? by snarkh · · Score: 1

      Good point, I was assuming we were near Earth, but that is not necessary. Still, would make little difference in the foreseeable future.

    9. Re:Are we talking human on human battles? by KDR_11k · · Score: 1

      I don't think debris will be a problem in combat. You'll want to keep your own craft pretty far from each other (you can spread them several kilometers apart easily) and they'd likely not be flying towards each other so debris would both be too sparse to cause a likely hit and not very fast relative to your other vessels so the impact wouldn't be very dangerous even with fairly light armor.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    10. Re:Are we talking human on human battles? by ultranova · · Score: 1

      Actually, if they make it this far, killing us (if they are inclined to do so) would be a trivial exercise, like shooting fish in a barrel.

      They have a ship. We have a planet.

      The fish is the shark from Jaws, the gun is a popgun, and you're taking a bath in the barrel.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    11. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      Yeah, it's a fun thought exercise. But seriously: if those aliens had managed to figure out what they were dealing with just a little bit faster, they could have flown off and dropped rocks on us from orbit. Their biggest problem would have been figuring out how to receive our surrender.

    12. Re:Are we talking human on human battles? by fast+turtle · · Score: 1

      There's another book called "High Crusade" involving Knights in Armor, Aliens in Space Ships and the Crusades. The only good demon is a dead demon. We end up kicking their ass after they've taken a number of Knights because they can't defend against trebutchets and catapults. Their tech is to advanced that they simply can't detect them. Their defenses are geared for the destructive levels of their own explosives, beam weapons and such but they haven't considered what happens when Greek Fire is thrown at them from undectable launchers. A very good read for those who can find the book.

      --
      Mod me up/Mod me down: I wont frown as I've no crown
    13. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      and if they [aliens] make it this far, they aren't going to waste their precious resources trying to kill us.

      Maybe those resources aren't 'precious' to them. Or maybe they think it's worth expending resources to destroy us.

    14. Re:Are we talking human on human battles? by dhasenan · · Score: 1

      Space is big. Really, really big. You might think it's a long way down to the chemist's, but that's just PEANUTS to space! Listen--

      Space is so huge that you aren't just going to wander into the interstellar void and come across an enemy armada. Unless your enemy armada spans light-years, anyway. You need to force an engagement at a particular location.

      Well, more likely, you concentrate your forces at a particular enemy target, and either the enemy spies found out where your armada will be and then you're doing a head-on engagement (or it's otherwise obvious; for instance, only one planet of any value); or your forces come in and crush everything in sight.

      In the meanwhile, your enemies who don't know where you're going to engage but have managed to find out that your armada is on maneuvers have launched a counterattack. Don't bother going home; your family's dead as soon as you move out.

      So all engagements happen near planets, and all engagements are MAD.

      There's an alternative. Animals will rush at each other with their horns, trying to knock each other down. They swat each other with their paws -- with claws sheathed. Why not bare your claws? Surely that would give you a better chance to win? But then your enemy will unsheathe their claws, and a battle that would have ended with a victor and a loser, each walking off unharmed, would likely end with two heavily injured animals.

      Another type of war, then, would be to send a small force off to attack your enemy. Keep a lot of ships back for defense, hoping that whichever target your enemy picks will be sufficiently defended. Make your attack large enough that hopefully you can take the territory you want, but small enough that your enemy won't respond with an all-out attack guaranteeing your destruction.

    15. Re:Are we talking human on human battles? by okoskimi · · Score: 1

      Sounds more like a cute story that at the same time panders to human ego than the author realistically proposing something like that might actually happen. I remember one science fiction writer saying in story notes how some sci-fi magazine editor really liked stories where some trait humans possessed made them superior to all aliens; this seems like one of those. Even in the story you describe, the ability to move things (gravity manipulation) is a weapon; the aliens could have simply bolted engines on a couple of big asteroids, bombarded Earth back to stone age and come back after the dust settled. Their matchlock weapons would have been quite enough to subdue what remained of the population.

      On the other hand, another story of that type proposed that humans are uniquely gifted in weaponizing anything and everything; so perhaps there is some internal consistency there after all...

    16. Re:Are we talking human on human battles? by okoskimi · · Score: 1
      Ah, found the citation: http://tvtropes.org/pmwiki/pmwiki.php/Main/HumansAreSpecial

      Isaac Asimov once said that almost every story edited by John W. Campbell had a Humans Are Special theme.

    17. Re:Are we talking human on human battles? by jamesh · · Score: 1

      There was an Asimov (I think) story along vaguely similar lines. Aliens notice a star (ours) going through it's red giant phase and notice vague blips coming from a planet (Earth) that might indicate life. They land on a dying Earth but find it abandoned, and then notice a bunch of STL spacecraft heading out of the solar system, and go and rescue them.

      The closing lines of the story are someone making a comment about the poor little harmless earthlings, then something like "10 years later, that comment wouldn't seem nearly as funny".

    18. Re:Are we talking human on human battles? by medv4380 · · Score: 1

      Not really both China and the Vikings beat out Columbus to North America. China failed because by the time they got back the political control flipped over to Isolationists and Vikings are not very sociable and failed at making viable colonies. Go figure that it took pilgrims befriending then slaughtering the natives to get a foothold. Coupled with the, we can't go home or we'll be killed. I'm sure most of them would have left after that first winter if it was an option.

    19. Re:Are we talking human on human battles? by ultranova · · Score: 4, Funny

      Passive radar using solar radiation?

      Fancy name for a camera you have there.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    20. Re:Are we talking human on human battles? by OzPeter · · Score: 2

      There was an Asimov (I think) story along vaguely similar lines.

      Umm .. that was Arthur C Clarke and the story was Rescue Party and the aliens detected TV/Radio waves when the Sun was about to go supernova, and the humans departed the solar system using sub light ships.

      Aside from that you got it pretty well right.

      --
      I am Slashdot. Are you Slashdot as well?
    21. Re:Are we talking human on human battles? by OzPeter · · Score: 1

      Every time someone makes that argument I think of stories like The Road Not Taken (summary: aliens show up, detect no FTL drives on earth, conclude we'll be an easy target, land, try to take over using matchlock weapons, get slaughtered, humanity realizes what a bunch of idiots we've been for not figuring out FTL travel on our own, galaxy is fucked....)

      Harry Turtledove spun that short story out to a complete series of books: Worldwar/Colonization/Homecoming

      --
      I am Slashdot. Are you Slashdot as well?
    22. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      Except stories like that assume that alien weaponry develops in a completely detached manner from all other technology.

      If aliens were smart enough to develop space flight and matchlock weapons, why would you assume that aliens are not smart enough to develop kinetic bombardment? Kinetic bombardment is nothing more than dropping a large object and watching it naturally destroy whatever is underneath it. Thats more primitive than matchlock weapons.

      Such logic only makes the slightest sense if the aliens develop said technology by stealing/mimicking other alien technology.

    23. Re:Are we talking human on human battles? by martin-boundary · · Score: 1

      One of my favourite stories along those lines (I don't recall the title) weaves the human specialness with the failure to find any Aliens at all in space. To cut a long story short, after centuries of searching for life on every planet and not finding any, the last human explorer meets unexpectedly an alien ship. It turns out that the universe is teeming with life elsewhere, but in the distant past, there was a galaxy wide war against Earth's evil dominion, and all the planets in the local spiral arm of the galaxy were blown up, leaving a prison/wasteland with the Earth at its center...

    24. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      Or Harry Turtledove's fun Worldwar sci-fi series in which aliens invade us at the peak of WW II, and are shocked to see how far we've advanced since their probe "only" 800 years earlier... Turtledove leaves the door open but by the end we figure out FTL before the "Lizards" do...

    25. Re:Are we talking human on human battles? by MobileTatsu-NJG · · Score: 1

      summary: aliens show up, detect no FTL drives on earth, conclude we'll be an easy target...

      An easier target would be a planet that has no civilized life on it at all.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    26. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      The one I always think about is resource hungry aliens show up, grab a large object from the asteroid belt, and dump it onto earth eliminating our civilization, aliens either return to hibernation until the atmosphere is more amenable to them and we plunge into chaos or they descend immediately to consume our carcasses and enslave our survivors...

    27. Re:Are we talking human on human battles? by realityimpaired · · Score: 1

      Accelerate an asteroid in our general direction, and hope we don't have an Al'kesh.

    28. Re:Are we talking human on human battles? by snarkh · · Score: 1

      > They have a ship. We have a planet.

      And Cortez had a few hundred conquistadors against all of the Atzek empire.

    29. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      even better comparison - Magnifying glass

    30. Re:Are we talking human on human battles? by nickersonm · · Score: 1

      Pandora's Legions is another similar story: lower-tech aliens with an earlier discovery of gravity manipulation invade earth, are defeated, and Humans expand. It's free to read from Baen.

    31. Re:Are we talking human on human battles? by snarkh · · Score: 1

      They can just take the energy of whatever engine they use to accelerate to relativistic speeds and apply it as a weapon. That would be far more powerful than any nuclear explosion. This relies on the assumption that they fly at relativistic speeds. There are two alternatives -- they can travel for thousands of years in a slow massive ship, in which case the technology needed to assemble and to accelerate such an object would need to be equally impressive. Another possibility is that they use some unknown technology for faster than light travel/wormholes, etc. In that case their technology is likely to be beyond our understanding.

    32. Re:Are we talking human on human battles? by ceoyoyo · · Score: 2

      There were exceptions. Japan through most of it's history for example. Also, Mongols.

    33. Re:Are we talking human on human battles? by oatworm · · Score: 1

      Eh... it's a fun conceit to think about, but, historically speaking, we already know how that battle turns out - extremely poorly for the ones using primitive fighting equipment, but not quite as poorly as the people with the technology anticipated when they picked the fight in the first place. We have a couple centuries worth of European history against various indigenous groups to back that up.

      One interesting recent development in human history that might correlate with a story like this is how, once the bigger/badder/better urge is maxed out, the race suddenly focuses on intent and finesse. For example, the US could carpet-bomb Afghanistan with nuclear weapons if it was so inclined, but it chooses not to. So, instead, the US military is focused more on doing the most amount of damage in a very precisely targeted location under very precisely controlled conditions without doing any damage to US military forces or surrounding areas - hence the recent embrace of drones, laser-guided weapons, smart bombs, stealth, and so on. The result is a level of precision that was unthinkable by Soviet forces in the late '70s, to say nothing of the brute force methods of both world wars. Following this train of thought, it'd be possible that highly advanced space aliens might want to attack us to secure a particular resource but find our near-suicidal willingness to inflict as much harm to ourselves as our enemies morally, tactically, and politically untenable. Put another way, would you feel the same way about harvesting honey if it turned out that bees were intelligent, even though you know that bees routinely sacrifice themselves when they attack the beekeeper?

    34. Re:Are we talking human on human battles? by antdude · · Score: 1

      Hey now! :P

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    35. Re:Are we talking human on human battles? by muntis · · Score: 1

      Don't mix exploration and warfare. Mankind can send probe out of solar system or put rover on Mars but I don't see any tanks even on Moon.

    36. Re:Are we talking human on human battles? by Idarubicin · · Score: 1
      Yes, it's amazing how many authors like to write a good piece of human chauvinism. We may not be the most powerful or intelligent species in the galaxy, but damn it we're plucky and inventive!

      Turtledove himself has gone back to that well at least once, with his Worldwar and Colonization series. (Aliens visit Earth in the twelfth century, see humans with swords and horses, assume human technology and society will advance as slowly as their alien technology did. Aliens return to take over the Earth in 1941, find it a much tougher nut to crack than expected. Ingenious humans eventually show them our superior flexibility and intelligence. Rah rah rah.)

      David Weber did it in The Excalibur Alternative.

      Arthur C. Clarke did it in the short story Rescue Party.

      You could almost argue that Isaac Asimov did it with The Caves of Steel and the subsequent Elijah Bailey novels, if you're willing to consider the Spacers as an 'alien' race.

      Heck, TVtropes has an entry specifically for Humans Advance Swiftly.

      --
      ~Idarubicin
    37. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      I think "fish in a barrel" has more symmetry, since our planet is mostly covered in water. Unless you meant "like spraying insecticide on an ant nest in Seattle." Also, our planet is blue, and there's not a lot we can do to leave it, and if we do manage to, we have trouble breathing after not very long. So, barrel.

    38. Re:Are we talking human on human battles? by hiryuu · · Score: 1

      I'll add one to that list - Brin's "Uplift" saga, which rolled out the premise of Terran humanity being unique among their contemporaries as not being "uplifted" by an older patron species, and instead evolving (biologically) and developing (technology) on their own.

      --
      Karma: Excellent, but still won't get you laid.
    39. Re:Are we talking human on human battles? by danbert8 · · Score: 1

      How about the entire Mass Effect series?

      --
      Yes it's an anecdote! Were you expecting original research in a Slashdot comment?
    40. Re:Are we talking human on human battles? by Anonymous Coward · · Score: 0

      It is neat to hope for a gravity manipulation technology to show up, but physics points pretty strongly towards that taking energy. The difference between military and civilian technology is not very important compared to the order of magnitude of energy you can harness.

      Even in that story, is there a good reason they're not just dropping heavy things on the humans? Transportation within a gravity well is energy, regardless if the transportation is done with some new physics.

    41. Re:Are we talking human on human battles? by electrons_are_brave · · Score: 1

      ... and if they make it this far, they aren't going to waste their precious resources trying to kill us.

      Humans - at the time - went a "long way" to discover America/Australia etc etc and certainly killed the local inhabitants. Sometimes this was deliberate (shoot 'em) and sometimes this was accidental (common, harmeless diseases that were deadly to them). The best that could be hoped for is that they were "integrated" into the new society in a way that may have been well meant, but ended up causing massive problems to those peoples even hundreds of years later. And they were the same species. Other species we plucked, roasted, hung their teeth around or necks etc. OK - aliens may be different. Or may be the same.

    42. Re:Are we talking human on human battles? by Lehk228 · · Score: 1

      i don't know about plucky and inventive.... more like uniquely homicidal and insane

      --
      Snowden and Manning are heroes.
  11. Not sure what it would look like, but... by Anonymous Coward · · Score: 0

    I know it wouldn't sound like Doppler shifted engine revs or "pew-pew" lazars.

    At least until Lucas digitally re-mastered it...

  12. some sort of guided explosive device by walterbyrd · · Score: 1

    I suppose missals that could detect the other vessel, and guide themselves there, would make the most sense.

    1. Re:some sort of guided explosive device by Bill+Hayden · · Score: 5, Funny

      And what would these missals contain? A harshly worded message from the Pope? I will grant you, though, that a missal travelling at some fraction of the speed of light would still do quite a bit of damage.

      --
      Protect your browser with the Force Safe Search add-on
    2. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      Sombody please mod parent up, this is probably the funniest comment I've ever read on slashdot.

    3. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      LOL, Amen brother! This comment made remember the missals in the pews when I was Roman Catholic.

    4. Re:some sort of guided explosive device by betterunixthanunix · · Score: 1

      I would like to add to this: proximity fuse, and lots of hard objects packed in with the explosives. It is going to be hard to guide a missile to a spacecraft (which can and probably will be moving very fast), so you are going to want to have the missile get close enough to punch lots of holes in the craft's hull. Additionally, you do not actually need to "blow up" a spacecraft, you just need to depressurize it, assuming there are human occupants, or mess with electronics etc.

      Another big challenge is going to be avoiding all the debris that would be created during the battle. I expect that the battles will involve moving very quickly away from previously destroyed spacecraft, and so you will see groups of ships moving parallel to each other while deploying whatever weapons they have. Perhaps the battles will be very quick shootouts, with each side retreating from the debris, regrouping, and preparing for the next shootout.

      To put things in perspective: a painchip can create a small crater in the space shuttle's wing. Imagine what a ball bearing could do.

      --
      Palm trees and 8
    5. Re:some sort of guided explosive device by NoNonAlphaCharsHere · · Score: 5, Funny

      I'm pretty sure missals make a "pew pew pew" sound.

    6. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      Wrong misspelling. He meant vassals. He's talking about intelligent missals capable of locating the vassal it was intended for. First it was porn driving technology, but soon it will be ecclesiastical feudalism behind all progress.

    7. Re:some sort of guided explosive device by macraig · · Score: 1

      I suppose missals that could detect the other vessel, and guide themselves there, would make the most sense.

      Did you mean mussels? In space?

    8. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      I'm happy you think that makes the most sense, but what the hell is a "missal"?

    9. Re:some sort of guided explosive device by v1 · · Score: 5, Insightful

      Additionally, you do not actually need to "blow up" a spacecraft, you just need to depressurize it, assuming there are human occupants, or mess with electronics etc.

      I'm surprised no one has brought up submarine warfare for comparison here. When in a sub war, one does not try to destroy their opponent. The enemy of my enemy is my friend. And THE enemy is water. Let the enemy in is the name of the game. Same with space. Vacuum is the enemy. Let the enemy into your opponent's ship and then sit back and watch the show. (for as long as it lasts anyway)

      Space introduces dynamics as unique as underwater. Craft can be insanely delicate and lack any armor and still be a potent force. Range is dictated by your ability to detect/track your enemy (without becoming a beacon yourself) and to focus laser and other particle weapons at long distance. Stealth is very important.

      So I think it's fair to say that any hit with a kinetic or explosive weapon would be fatal. Point-defense against missiles would be mandatory because it would be trivial for even the smallest ship to launch a few dozen little missiles that fan out in a very wide trajectory and track you. Mines would be big - think autonomous boxes that sit quietly playing asteroid until something big that lacks the FOF beacon comes into range.

      Due to the extreme decompression risk, crew would probably wear very minimalistic suits that carried very little air and power but could be tethered at their stations, and drop the face shield down in case of breech, to prevent a small breech from voiding the ship. Trying to armor critical areas of the ship would be mostly counter-productive because more mass means less maneuverability. The suits the crew wear may even be similar to flight suits that can help with high-Gs, allowing even greater maneuverability.

      I think current sci-fi fighter designs are closer to realistic. Babylon-5's star-furies showed excellent insight, I recommend looking at those for reference. Those also showed how ships need to be able to maneuver in zero-g, featured crew in suits, etc. The only thing not really serious there were the energy "pulse guns". But limited ammunition and fire recoil makes sci-fi space battles a lot less interesting. I think we need to break away from the "pulse gun" concept in sci fi fighters, it's a tired crutch that's unlikely to ever become reality.

      A lot of this is considering larger ships. Probably the only "big" things will be moon/asteroid bases and the occasional "space dock" carrier-type large ships, I don't think a "capital class" space battleship will be anything short of a nuke-magnet. (again reference several examples in B5, bigger ships generally lost to smaller ones, for good reason)

      The other crutch is unlimited energy, particularly in the fighters. Capital ships could have reactors, but at a great weight and size penalty. I think fighters are going to have to rely on smaller consumable fuel. Fuel logistics will be big, considering the difficulty of getting fuel into orbit or acquiring it in space. Other different ways of storing energy will probably be found, such as being able to produce hydrazine from raw elements found in space, with the synthesis (energy input) from solar power.

      I could probably muse about this for several more pages but I'll take a break now I think.

      --
      I work for the Department of Redundancy Department.
    10. Re:some sort of guided explosive device by KDR_11k · · Score: 1

      That paint chip has a very different velocity than the shuttle, the space equivalent of a head-on collision. To have the same effect you need to accelerate towards your enemy and have your whole craft move at a high speed towards them so your bullets are just as fast. Guns alone will only apply a few hundred meters per second to your projectile, not doing much more than a point blank shot on Earth does.

      However that acceleration will go both ways, your opponent can use your speed against you by dropping a few bags of sand into space and then accelerating away from you, leaving you with the higher energy impacts if you decide to keep going towards him. And if you have enough acceleration force to turn around completely before getting too close to your enemy then you can accelerate in any direction and dodge such a predictable cloud of high speed projectiles so the whole attack is pointless. You're basically using your main engines to accelerate your projectiles. You'll probably want to use guns instead but getting a gun that can produce velocities that several minutes of acceleration do will be tough and cause a lot of recoil.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    11. Re:some sort of guided explosive device by russotto · · Score: 2

      I'm surprised no one has brought up submarine warfare for comparison here. When in a sub war, one does not try to destroy their opponent. The enemy of my enemy is my friend. And THE enemy is water. Let the enemy in is the name of the game. Same with space. Vacuum is the enemy. Let the enemy into your opponent's ship and then sit back and watch the show. (for as long as it lasts anyway)

      Probably not as effective in space. Submarines have to handle tens of atmospheres of pressure differential, spaceships only one -- and that only in crewed areas.

    12. Re:some sort of guided explosive device by Samantha+Wright · · Score: 1

      I didn't hear him clam anything like that! Don't be so shellfish by dragging things off topic.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    13. Re:some sort of guided explosive device by macraig · · Score: 1

      I think it's your samantic antics that are off! Off the hook, anyway. Me, I spit out nothing but pearls of wisdom and I'm not in the least bit crabby.

    14. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      as it turns out, lasers are the only exception to make noise in space.

    15. Re:some sort of guided explosive device by Boronx · · Score: 2

      It probably will be like subs in that victory goes to the sub that makes the detection.

    16. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      I'm surprised no one has brought up submarine warfare for comparison here. When in a sub war, one does not try to destroy their opponent. The enemy of my enemy is my friend. And THE enemy is water. Let the enemy in is the name of the game. Same with space. Vacuum is the enemy. Let the enemy into your opponent's ship and then sit back and watch the show. (for as long as it lasts anyway)

      And this is why manned space combat is idiocy. By the time we have the technology to waste resources on space squabbling, we'd better damn well have strong AI. In fact, unless we develop some sort of magical g-force cancelling technology, we'd need it anyway since it's pointless to slow down a ship for humans unless they're the cargo.

    17. Re:some sort of guided explosive device by AdamWill · · Score: 1

      "Space introduces dynamics as unique as underwater. Craft can be insanely delicate and lack any armor and still be a potent force. "

      Yes, so unique, they're not _at all_ like fighter planes. Which pretty much crash if you breathe on 'em too hard, but sure are potent forces...

    18. Re:some sort of guided explosive device by AdamWill · · Score: 1

      to expand on my comment: this is all really well-trodden stuff. just look at, well, any sf author ever. all sf I can think of either treats ships as one-hit kills, or hand-waves some kind of Advanced Energy Shielding system to magically bestow resiliency on spacecraft. in other words, everyone who's thought about it at all hard is perfectly well aware that any spacecraft without _serious_ shielding is insanely vulnerable to any kind of hull breach at all.

    19. Re:some sort of guided explosive device by tburkhol · · Score: 1

      Additionally, you do not actually need to "blow up" a spacecraft, you just need to depressurize it, assuming there are human occupants, or mess with electronics etc.

      I'm surprised no one has brought up submarine warfare for comparison here. When in a sub war, one does not try to destroy their opponent. The enemy of my enemy is my friend. And THE enemy is water.

      I'm pretty sure any spacecraft designed for combat will depressurize itself before combat. Suit the individual, maybe tethered to a workstation, and you reduce one of the main hazards of combat. You can't really do that in a submarine because water has a lot of mass, a lot of viscosity, and hampers the mobility of both the ship and crew. Why risk all that irreplaceable air when you can store it away in a dense, armored compartment, like they used to to with the captain's china.

      I'd also expect combat either to depend on very intelligent drones capable tracking a target for a few days (while avoiding counter-drone drones), or to happen at distances equivalent to modern dogfights. ie: a muzzle velocity of 800 m/s makes for dogfight ranges of a few hundred meters with dumb bullets; maybe a couple of miles with guided missiles. At greater distances, countermeasures dramatically reduce weapon effectiveness. Of course, "space" velocities might be a 100 km/s, rather than 1 km/s, but it's hard to imagine effective combat if your opponent has minutes to respond, disable your ordinance, or just move out of the way

    20. Re:some sort of guided explosive device by ultranova · · Score: 1

      A lot of this is considering larger ships. Probably the only "big" things will be moon/asteroid bases and the occasional "space dock" carrier-type large ships, I don't think a "capital class" space battleship will be anything short of a nuke-magnet. (again reference several examples in B5, bigger ships generally lost to smaller ones, for good reason)

      If you have a fight in space, then either one side will travel a long distance to get there, or both will. And you can't keep people sitting on a tiny fighter for months. Even if you could find people fanatical enough to do that, their bodies would simply break from forced inactivity long before they reached the target. So if you want to do battle in space, you must either have large ships or hyperdrives. Which, of course, is exactly why we deploy carriers in real life: fighters just don't have the range.

      Also, consider the square-cube law: the surface area of a ship scales with second power, while the volume scales with third. That means that a larger ship takes less penalty (mass increase in percentage of total mass) from the same armor than a smaller one would, while being capable of taking the same relative amount of fuel and supplies. A larger ship can also fit automatic anti-missile guns and such which a smaller ship simply doesn't have room for.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    21. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      A moving missal, a mass celebration, acceleration, detonation

    22. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      Just a few nitpicks.

      and to focus laser and other particle weapons at long distance. ...
      I think we need to break away from the "pulse gun" concept in sci fi fighters, it's a tired crutch that's unlikely to ever become reality.

      You say that and then yours and every other post here mentions lasers, as if air is the ONLY reason we don't have laser weapons everywhere now. There are logistical problems with powerful lasers _on Earth_, so I don't see them immediately making more sense than guided missiles in space.

      Trying to armor critical areas of the ship would be mostly counter-productive because more mass means less maneuverability.

      Consider for a moment that we do armor aircraft.

      A lot of this is considering larger ships. Probably the only "big" things will be moon/asteroid bases and the occasional "space dock" carrier-type large ships, I don't think a "capital class" space battleship will be anything short of a nuke-magnet. (again reference several examples in B5, bigger ships generally lost to smaller ones, for good reason)

      I wouldn't think things would wildly diverge from naval warfare really. Things always change, but I've never heard of this nuke the carrier concept on Earth, I don't see why it would make more sense in space.

    23. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      Lots of mass in an altar missal, ergo a great kinetic weapon.
      I dropped an altar missal on my foot once as an altar boy, ouch, very heavy, ...not to mention embarrassing

      King Arthur: Consult the Book of Armaments.
      Brother Maynard: Armaments, chapter two, verses nine through twenty-one.

    24. Re:some sort of guided explosive device by rubycodez · · Score: 1

      fighters? the only thing I need to ruin your "battlestar" is a cloud of ball bearings or lead pellets going at the "wrong" velocity (wrong for you).

    25. Re:some sort of guided explosive device by Anonymous Coward · · Score: 0

      I disagree. Pressure suits (designed to keep your 1 atmosphere of pressure inside) are a lot easier to manage than diving suits (designed to keep 10-20 atmospheres outside). The vacuum of space is non-corrosive and will not harm your electronics. If I were devising a manned space warship I would plan for all occupants to don pressure suits and preemptively depressurize the ship when I went to battle stations. I'm sure there is a sci-fi author that has done this, although I can't recall reading it.

      Alternately, if the weapons were such that the likelihood of surviving a single hit were trivial, then who cares.

    26. Re:some sort of guided explosive device by FormOfActionBanana · · Score: 1

      Hmm, thank you for this.

      --
      Take off every 'sig' !!
    27. Re:some sort of guided explosive device by gknoy · · Score: 1

      On the other hand, it's a lot harder to surface and get more air for a spacecraft.

    28. Re:some sort of guided explosive device by camperdave · · Score: 1

      Vacuum is the enemy. Let the enemy into your opponent's ship and then sit back and watch the show. (for as long as it lasts anyway)

      One could also let the propellant out. A ship that is unable to manoeuvre is a doomed ship. Ditto with knocking out the power. "It is very cold in space".

      Besides, any large ship would be compartmentalized, so you'd have to punch quite a number of holes through the hull to ensure that the crew perishes.

      --
      When our name is on the back of your car, we're behind you all the way!
    29. Re:some sort of guided explosive device by v1 · · Score: 1

      fighters? the only thing I need to ruin your "battlestar" is a cloud of ball bearings or lead pellets going at the "wrong" velocity (wrong for you).

      That seems to be a popular idea in this thread, but shows a lack of adequate consideration. (1) energy weapons are going to be a lot more convenient to have since they don't require bulky ammunition. your idea propose carrying around things that are bulky by design. the more mass you carry, the less maneuverable you are. But that's the less important issue. (2) everyone seems to think that space battles will be fought by blistering fast ships and all you have to do is stick a thumbtack out in front of them to punch a hole straight through their ship. Velocity is going to be expensive then just the same as it is now, and unless someone figures out how to make "inertial dampeners" a la start trek, crew won't survive any maneuvers at those speeds, so speeds will be much slower than you're hoping for. Unless the ships are unmanned, but then still you are dealing with limited fuel on board. Changing vector in space requires loss of mass, newton is still at work in space. Most or all fighters probably WILL be unmanned though, but will be more interested in bang for the buck. Kamakazi drones make the most sense in a scenario like that.

      Imagine a drone that functions more like a bomb with a spaceframe built around it. The frame provides propulsion (but no defense) and gets the core to the target, at as high a velocity as possible, to bury the core as deep into the armor as possible. Once penetrated, the core detonates with a dozen or so shaped charges that send moderate mass sabots at very high velocity in a forward distributed direction, to try to punch several holes in the ship from the inside out, rupturing many dozens of sealed compartments. Of course this is unmanned vs manned. Unmanned vs unmanned is where things will get tricky, and I don't see anyone that's put any thought into that here. What do you do against a drone carrier corvette that's lumbering its way toward your station, that carries a hundred little drones as described above?

      And no it can't just stomp on the gas and plow into your base. Bases would have substantial energy weapons for defense, and a ship accelerating straight toward you makes a perfect target even at distance. These things will require maneuvering and tactics.

      --
      I work for the Department of Redundancy Department.
    30. Re:some sort of guided explosive device by X0563511 · · Score: 1

      Directed Energy Weapons (eg "pulse guns") may well be one of the ways to go - but instead of pretty-looking "blasters" you just paint the other target with a laser or similar in an attempt to overwhelm it's cooling ability. No need to vent it, no tedious accelerations or projectiles. The one with the best tracking system and best cooling system (or preventative, such as a dust cloud) wins.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    31. Re:some sort of guided explosive device by flargleblarg · · Score: 0

      ROFL

  13. Big Bang Theory meets... by Anonymous Coward · · Score: 1

    This is like the Big Bang Theory meets the Pineapple Express. My question: when you began consuming the brownies, did you know they had hashish in them?

  14. Try Project Rho/Atomic Rocket... by stoicfaux · · Score: 5, Informative

    Lots of good data here, from reality to various levels of sci-fi.: http://www.projectrho.com/rocket/spacewarintro.php

    1. Re:Try Project Rho/Atomic Rocket... by stoicfaux · · Score: 1

      It's not overly clear, but you'll want to click on the "Show Topic List" in the upper right corner.

      If you want to jump directly to conventional space weapons: http://www.projectrho.com/rocket/spacewarintro.php

    2. Re:Try Project Rho/Atomic Rocket... by NalosLayor · · Score: 2

      This needs more positive moderation. projectrho analyzes the topic exhaustively.

    3. Re:Try Project Rho/Atomic Rocket... by Patch86 · · Score: 1

      Would mod you up if I had points; it was what I clicked through to post.

      It discusses the topic in such atomic detail (ho ho), it makes this discussion a bit of a pain to read on here; so much is already debunked.

    4. Re:Try Project Rho/Atomic Rocket... by Anonymous Coward · · Score: 0

      Also check out the excellent "Rocketpunk Manifesto" blog, lots of posts and discussion about space warfare!
      http://www.rocketpunk-manifesto.com/2011/03/space-warfare-xiii-human-factor.html scroll to end of post for links to other posts

    5. Re:Try Project Rho/Atomic Rocket... by jgtg32a · · Score: 1

      I got a better idea, don't read it. It ruins space combat for you.

    6. Re:Try Project Rho/Atomic Rocket... by Anonymous Coward · · Score: 0

      Nice, was going to post myself but I figured someone else would have.

      No further discussion need happen, the Atomic Rocket page has it covered.

  15. Red and blue lasers obviously by Liquidrage · · Score: 1

    Maybe some green ones, but I think mostly red and blue.

    Or, given our current tech, nukes and explosives missiles and small ships? Just going out on a limb there.

    Far future? I'll let you know when we invent the tech that lets us easily have space fights.

  16. Humans or no? by Kickboy12 · · Score: 5, Interesting

    I always thought the idea of having humans on board a "space battle cruiser" were really weak on imagination. It's very likely space battles would take place with autonomous robots, controlled from a distance, so as not to sacrifice human lives. This, in general, is probably the future of military combat. A million little nano bots would also be much more effective in waging a battle than 1 or 2 giant ships with laser beams (also weak on imagination).

    1. Re:Humans or no? by sirsnork · · Score: 1

      When talking space distances controlling them remotely quickly becomes impractical due to the time it takes for commands to be sent.

      The Babylon 5 creators spent a lot of time thinking about this too. So from that aspect the show is quite good, except they put sound in space.

      --

      Normal people worry me!
    2. Re:Humans or no? by PlatyPaul · · Score: 1

      That, plus you wouldn't have to worry so much about a particular "ship" hitting or generating debris.

      --
      Misery loves company. Online misery loves unsuspecting random strangers.
    3. Re:Humans or no? by vlm · · Score: 1

      Yeah that takes care of the battle part. After the battle the losers, military, civilians, pets, and all get genocided. I donno if you want to count that as part of the battle.

      The other problem is own goal action, the problem with a million little nano bots is making sure they all attack the enemy and not yourself by either being reprogrammed, or fooled. Millions of them, yikes. At least with 2 giant ships you only need 2 really intelligent commanders.

      Most likely is two giant ships filled with clouds of ultra short range nano bots. Ultra short range so they don't accidentally hit the fatherland.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    4. Re:Humans or no? by SJHillman · · Score: 1

      I imagine AI will continue to advance quickly. If AI was developed enough and foolproof enough that you could just issue strategic commands (proceed to sector A, engage any object with a threat level above 9) and leave the tactical decisions to the drone. Any problems about not being able to change or rescind commands quickly would hold just as true for a human crew.

    5. Re:Humans or no? by vlm · · Score: 1

      When talking space distances controlling them remotely quickly becomes impractical due to the time it takes for commands to be sent.

      Literature/culture problem. We are only permitted binary thinking, so robots must either be radio controlled cars with weapons, or they must be more human than some humans, like Cmdr Data or Cherry 2000. It is a thoughtcrime to have a robot exist somewhere in between, just as its a thoughtcrime to not be a devout republican or democrat, or christian or anti-christian.

      The real world is most likely to have them be fairly autonomous. A bit smarter than an off the shelf air to air missile, but probably not a heck of a lot smarter.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    6. Re:Humans or no? by Dog-Cow · · Score: 2

      Continue to advance quickly? When did AI start to advance quickly?

    7. Re:Humans or no? by Anonymous Coward · · Score: 0

      I think not. Space is big. Unless we figure out some quantum entanglement/instant communication, a brain close by is needed unless almost totally autonomous (there's a 3 minute radio delay just to mars!). I think the great bigness of space will yield a submarine style of combat with lots of autonomous robotic scouts. You mostly never see your enemy. Who finds who first is the most important thing. Intelligence will be a great commodity due to the bigness of space, so I would imagine taking prisoners to be high priority. For planetary combat I could see lots of smaller drones pushing giant asteroids into a collision with a planet if need be, but that would be close to a present day nuclear option wasting valuable resources of a viable planet. Using the same drone principle make of the asteroid as an artificial moon staging area for other ships to attack a planet using it as a giant rock shield. Orbital battles might turn into something similar to the battle of Midway. Altitude is your friend.

    8. Re:Humans or no? by ad1217 · · Score: 1

      Maybe we need an ansible?

    9. Re:Humans or no? by tragedy · · Score: 1

      Commander Data I can see, but Cherry 2000? A mass-produced companion-bot with no self-awareness? The whole point of that movie was that the guy was confused and in love with an object that was simply well-designed to express love it didn't really feel. It had an AI good enough to manage housework and other "domestic duties", but that's about it. Maybe you didn't watch the whole movie, so this next bit might be a spoiler, but he dumps the robot off in the desert and saves the real girl and the robot doesn't care one way or another. If you wanted to find an example of either a "radio controlled [car] with weapons" or "more human than some humans", you picked a really lousy one.

    10. Re:Humans or no? by Anonymous Coward · · Score: 0

      I couldn't disagree more. The idea of robots fighting for you to save human lives is great and all, but robot on robot battle is completely pointless since neither side would stand to lose anything more than a few scraps of metal. The whole point of war is to kill the enemy so that he can't fight you/stand in your way/hurt other people/whatever reason you are fighting for. If you just kill his robot, he can still wage war, he just has to make another robot.

      Also, I don't see space battles happening any time soon. For one thing, a battle would involve large numbers of ships/people in space and we just don't have the ability to make that happen yet. Plus, space is so dangerous as it is that it pretty much rules out aggressive action that could easily bring about your own destruction. When something the size of an RPG could take out an entire space ship, why would you want to start a space war?

      A small hole in a space craft would cause death. A tiny one... Something the size of a pin hole could explosively rip open a space craft and kill everyone inside nearly instantly. It's not like wars on earth where if someone shoots your humvee you can just get out and walk. It's not even like battles at sea where you can survive by swimming until someone can rescue you. With no air, and absolute zero temperatures, you would die instantly if exposed.

      The future of war is just like the history of war: men against men. Technology just makes them deadlier.

    11. Re:Humans or no? by KDR_11k · · Score: 1

      I think a modern point defense is already smart enough to automatically engage targets that don't give the proper IFF response. Couple that with some avoidance scripts and you got enough to have a combat drone, the large scale stuff can handle a few seconds of lag.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    12. Re:Humans or no? by Samantha+Wright · · Score: 4, Funny

      In the early sixties. It stopped in the early eighties and has been sort of loafing about the place ever since, spending more time reminiscing about "the good old days" than anything else, and barely paying the rent. (I've been keeping score.) Nevertheless there are some signs it may actually be proceeding at a breakneck pace while we're not looking...

      The truth is that by the year 2100, speculative theories will be so advanced and so reliably misguided that we'll be able to calculate anything and solve any social problem simply by asking futurists a question and assuming the opposite.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    13. Re:Humans or no? by vlm · · Score: 1

      Yeah no spoiler, that movie is like 30 years old? I'd argue poor acting or idiocracy struck severely. Remember, he was VERY happy with C2000 before the unfortunate washing machine incident, willing to do anything to save her. C2000 WAS as human as the human chicks in his social group, that was the whole point, unfortunately for the housewives of that era. Then again I've seen some reality TV shows where maybe he has it better off.... The molly ringwald chick was an outsider vastly superior to all the insider chicks in his own city but incredibly unusual and weird to him. Either that, or you read it as the outsider chick was so weird and unusual that she had to be ostracized from society for her weirdness, than again, I stand by my point, C2000 was more human than some humans of her time. I would say its bad acting or trying to make it easier on viewers to figure out C2000 was a robot and not just another boring suburban housewife. To fit the story she must have been at least as real as beaver cleavers mom or maybe the mom from the brady bunch or maybe ms howell. He certainly was surprised by the outsider chick, because she wasn't like the chicks in the real world where he lived.

      In summary I'd stand by my post, C2000 sucked because she was an excellent silicon copy of the flaky carbon based chicks of his era, in fact a better copy than most, we're just looking at the exact same thing from different directions.

      Remember its a Very Important plot point that he dumped C2000 for an outsider ostracized chick from the wilderness, NOT a local girl next door or some chick he met at work or a pickup bar.

      I can't believe its 2012 and I remember this Fing movie. That means its a cult classic, right?

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    14. Re:Humans or no? by Anonymous Coward · · Score: 0

      That might be more realistic, but then sci-fi books would become exponentially more boring. Although film might be able to cope: http://www.rubberthemovie.com/

    15. Re:Humans or no? by AdamWill · · Score: 1

      not so much a failure of imagination as wilful blindness. humans, in general, find stories about humans - or at least things you can sort of think of as people, like almost all aliens ever imagined - interesting. stories about autonomous robots blowing each other up...not interesting.

      some authors go to quite intricate lengths to make it semi-plausible that actual human agency would be involved in something, trying to defend against the 'just use a bloody robot' complaint. viz gundam (referenced above) and the culture series. some authors just hope no-one notices. some lampshade it. but most have thought about it.

    16. Re:Humans or no? by Daniel+Dvorkin · · Score: 1

      The real world is most likely to have them be fairly autonomous. A bit smarter than an off the shelf air to air missile, but probably not a heck of a lot smarter.

      We're already seeing problems with semi-autonomous UCAVs going off mission. People are going to be very very nervous, and rightly so, about the idea of sending off a Death Star with anything less than near-real-time human control. People won't necessarily be on the "front line" (to the degree that the concept of a "line" has any meaning in space) but they won't be too far away either -- and that means they, as much as the armed robots, will be targets.

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
    17. Re:Humans or no? by euxneks · · Score: 1

      I can imagine an unscrupulous government sending our people out to face an anonymous enemy in space for "global security" but ultimately being population control. Heck, the enemy doesn't even have to be real, does it. ;)

      --
      in girum imus nocte et consumimur igni
    18. Re:Humans or no? by element-o.p. · · Score: 1

      The truth is that by the year 2100, speculative theories will be so advanced and so reliably misguided that we'll be able to calculate anything and solve any social problem simply by asking futurists a question and assuming the opposite.

      Well played indeed, madame :)

      --
      MCSE? No, sir...I don't do Windows. Yes, I am an idealist. What's your point?
    19. Re:Humans or no? by maxwell+demon · · Score: 1

      Well, it could well be robot-vs-robot battle with the one winning who still has working robots at the end. He can then use those robots against enemy humans, but most likely won't have to because the enemy knows that he cannot defend himself any more and surrenders to survive.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    20. Re:Humans or no? by marcosdumay · · Score: 1

      AI always evolved fast. Since the 60's it's evolving faster and faster as time passes.

      The problem is that people's ideas of what AI is doesn't evolve. Thus, as expert systems stopped getting better, people just assumed AI stopped. If you want to know what is AI, you can ask Google. It must know.

    21. Re:Humans or no? by tragedy · · Score: 1

      I was thinking in terms of real humans rather than movie ones. I do remember the club he went to in the movie where they had lawyers on call to negotiate dating contracts and the ex-girlfriend and the robot sitting down for sandwiches in the desert at the end. Even in the movie universe though, those other girls presumably had real feelings and desires underneath all of the social constructs they were living within (maybe not the ex-girlfriend). The robot though, was pretty clearly just going through the motions without even any desires. It did the housework and put on a cheery face, brought him his slippers and a Martini or whatever and said that it loved him in an adoring voice a lot. Just a well-designed program. She was also easy in every sense of the word. No complaints, completely compliant, utterly selfless in every sense of the word (especially in the sense that she didn't have one). In that respect, she was very different from the girls from the club who were pretty clearly nowhere near selfless.

      Of course, if the only objective is "more human than some humans" then we're setting the bar pretty low I suppose because there are some pretty damaged humans out there. On a scale of sentience that includes Data and remote controlled cars, the Cherry 2000 is far, far closer to the remote controlled cars than Data. I would say that AIs in sci fi actually populate points all along that scale between the remote controlled cars and Data, then beyond them in both directions as well as leaping off the one dimensional scale into additional dimensions.

    22. Re:Humans or no? by Deliveranc3 · · Score: 1

      I imagine it would be made up of extremely intelligent nanobots.

      They would break into smaller and smaller pieces to intercept incoming kinetic weapons made up of other nanobots.

      Depending on whether it takes a smaller/greater/equal amount of nanobots to destroy an encountered amount of mass war becomes more/less likely.

      Even kinetic weapons will likely follow the same principle. Breaking into smaller and smaller pieces.

      Invisibility and stealth will become increasingly impossible as technology improves.

      This should be obvious from current reactive armor technology that basically reacts by firing at incoming weaponry. Current generation warplanes and tanks have outer skins which fire outward to intercept incoming weaponry... the "skin" of such is basically short range missiles. Soon ships will be made up of missiles which are integrated at different levels (think sharing explosives, fuel, processing).

      Because of the danger of mis-communication orders would be pre-programmed. Eliminate nation, eliminate city, eliminate planet and so forth. Both sides will probably be using identical weaponry (since reverse engineering is already trivially easy) so the winner will be the one with more resources. Any such war would eliminate the majority of resources available to both (relatively comparable) groups. Since the weapons would benefit from being simplistic it would be a war of annihilation... and since any war using robotics and mandatory annihilation is essentially unforgivable the winner would need to wipe out all other groups (winner the Obama family?). Unless they're totally evil the next generation will massacre their parents for destroying all the resources and killing everyone. So yay!! Actually such a war readily explains why there are no aliens. The Americans are already pushing everyone around and heading for this type of war (instead of putting peace keepers and Socratic reasonable people who actually speak the local language on the ground to explain their reasonable requests. Which I guess is hard when your requests aren't reasonable).

      Well I suppose humanity had a good go of it.

    23. Re:Humans or no? by captainpanic · · Score: 1

      [...]so as not to sacrifice human lives. [...]

      You must think that humans are expensive?

      Your government probably gives you the impression that a human life must be saved at all cost, but they do that only to push through a hidden agenda. In reality, your life is not worth much (and neither is mine, or most others'). Sorry.

      If human lives were worth something, we'd be fighting cancer and obesity, rather than terrorism.

      Humans are very expendable.

    24. Re:Humans or no? by Anonymous Coward · · Score: 0

      It's not very original, but not as far fetched as people are trying to make it. Yeah yeah, "drones!", "incredible distances!" etc, but there are factors to take into consideration like moving targets, tracking and jamming over said long distances, and otherwise finding your target in space to begin with. Drones are great, until you lose control over them either because they're out of range, have had their signal hijacked, or simply jammed into uselessness.

      Then of course, you have the matter of people in space probably wanting to get around in something larger than a model rocket, and those things would probably have some form of defense in case they came across other large human ferrying ships.

      Yes, it would be considerably less common than is shown in typical sci-fi, but there would almost certainly be a handful of "well defended ships" if not battleships among probably something akin to the base stations in battlestar that serve to more or less defend a general area with drones and the like.

    25. Re:Humans or no? by Anonymous Coward · · Score: 0

      Mirrors are pretty good armor against lasers. There are likely other counter measures for directed energy weapons. My guess is that distances will evolve as technologies and counter technologoes evolve. In the first decades, lasers and railguns might be the long and close range weapons depending on the protection of the target. later on, swarms of directed nano-bot drones, EMP warheads, small short lived black hole devices and matter-anti-matter weapons might enlarge or shrink the distances over which space battles our fought. However, battles fought in Earth Orbit (or close by) will almost certainly use drones. Humans in spacecraft will only be an expensive liability until the battles start occuring light-seconds (or minutes) away from a communications hub, or blocked by a large mass. However, AI might be sufficiently advanced by then that instantaneous communication and direction in battle is no longer necessary and humans only have to do strategic planning. Still, humans might be very useful on large space battle robots as repair and maintanence specialists if these battlebots travel long distances over time.

  17. Oh boy by Anonymous Coward · · Score: 0

    It wouldn't look anything like in the movies, at all. There is no such technology. A few kinetic kill vehicles to harass the enemy's resources, while the real combat happens below, as always. Besides, it's all about the information nowadays, jam a few transmitters, send out a few viruses, that's it. The hardware-intensive fantasies of the 1960s to 1980s were never anything more than that: delusional fantasies.

  18. lame by Anonymous Coward · · Score: 0

    Slow news day, eh?

    1. Re:lame by vlm · · Score: 2

      Slow news day, eh?

      Yeah, go ahead, just dare them to post yet another raspberry pi article. Remember when we had to sit thru 3 e-ink display astroturfs per week? Ugh. Weird as it is, at least this doesn't get posted on a regular basis... thats why I upvoted it in the firehose.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:lame by gmhowell · · Score: 1

      Slow news day, eh?

      Yeah, go ahead, just dare them to post yet another raspberry pi article. Remember when we had to sit thru 3 e-ink display astroturfs per week? Ugh. Weird as it is, at least this doesn't get posted on a regular basis... thats why I upvoted it in the firehose.

      Back in my day, I had to sit through three hot grits trolls to get to one Natalie Portman.

      --
      Jesus was all right but his disciples were thick and ordinary. -John Lennon
  19. Self-propelled, autonomous munitions by ZaMoose · · Score: 1

    There are two great perils to ship-based weapons that I could foresee, regardless of ship size: heat dissipation and conservation of momentum. Any energy-based weapons would need to dump a tremendous amount of thermal energy off rather short-order, so your ships might have to drag some sort of radiator array behind them, leaving a sweet juicy target.

    If you committed to projectile weapons, you would need to have some sort of recoil dampening mechanism/thrust compensator every time you fired the weapon.

    So, ideally, you would have semi-autonomous self-propelled munitions that could be dumped, ala chaff or depth charges, and then directed towards their targets at the appropriate time.

    --
    I wish I had a kryptonite cross, because then you could keep Dracula and Superman away.
    1. Re:Self-propelled, autonomous munitions by Riceballsan · · Score: 1

      Well you could have fairly negligable recoil if said missiles are launched at extremely low velocity, launching their burners after being released from the ship. Accuracy would still be a challenge, they would require rather good AI's to navigate, of course the target would also likely be on the large side, and have even worse mobility then the missiles.

    2. Re:Self-propelled, autonomous munitions by quintus_horatius · · Score: 1

      Combat ships, if they exist, would probably be spherical. If there is anything resembling a cannon, there will probably be a single one and aiming will involve rotating the craft (or some sort of gimbal) around the center of the craft, for faster positioning.

      Macross this will not be. More like 2001 with guns and silent, ship-shattering kabooms.

    3. Re:Self-propelled, autonomous munitions by ZaMoose · · Score: 1

      But that's my point: standard kinetics wouldn't be feasible without some sort of physics-negating "inertial dampeners" ala Star Trek.

      --
      I wish I had a kryptonite cross, because then you could keep Dracula and Superman away.
    4. Re:Self-propelled, autonomous munitions by KDR_11k · · Score: 1

      How about recoilless weapons? Those vent their gases out the back of the weapon so the launcher doesn't experience much recoil while anyone standing behind him gets fried. Examples include man-carried anti-tank weapons (most of which are recoilless weapons, not rocket launchers).

      Alternatively you could build your kinetic launcher in a line with a thruster and fire the thruster whenever you fire the launcher to provide a counterforce. You'll have a limited rate of fire if you re-aim your weapon after every shot but at least you'll not be flying backwards.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    5. Re:Self-propelled, autonomous munitions by KDR_11k · · Score: 1

      I think a box with wedge-shaped front armor is more likely. Angling the armor allows it to deflect some otherwise penetrating projectiles. Think of an assault gun with thrusters instead of threads. Or maybe an upsized tank turret with engines on the backside (wouldn't want something this vulnerable in the front armor section).

      I think Elite's Cobra may actually be a viable design.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    6. Re:Self-propelled, autonomous munitions by Fnord666 · · Score: 1

      Combat ships, if they exist, would probably be spherical. If there is anything resembling a cannon, there will probably be a single one and aiming will involve rotating the craft (or some sort of gimbal) around the center of the craft, for faster positioning.

      To take this even further, I would expect it to be a hollowed out, high metallic content asteroid. Why build when you can just hollow out an existing rock, using the surplus material for manufacturing of the propulsion and weapons systems? The rock itself provides a large amount of ablative shielding for energy weapons. It can also provide screening for EMP and radiation effects. If kinetic weapons are to be used, the huge mass can be used to offset reaction forces from firing the weapons. For laser weaponry I seem to recall a defensive weapon from the RPG Space Opera (or was it Traveller?) called a sandcaster. Think 55 gallon drums of sand/dust with a small bursting charge in the center. Project the drum towards the enemy then detonate the charge with the force directed down the long axis of the drum.. A deep cloud of particles would do a great job of deflecting/dissipating light based energy weapons.

      If we are going to have the sky as the limit, so to speak, then I would expect nanobot disassemblers to be a likely offensive weapon. The nanobots simply disassemble the target ship into component molecules. Don't give them reproductive capability and only a limited lifespan. Project a cloud into the flight path of your opponent and let them fly through.

      --
      'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
    7. Re:Self-propelled, autonomous munitions by tragedy · · Score: 1

      Spherical means a big cross-section as a target. Depending on how the encounters actually pan out, that might be fine. On the other hand, if you want to dodge lasers or even projectile weapons coming from one ship or cluster of ships very far away, what you want to do is present as small a target to them as possible and make unpredictable lateral movements. For that, a long thin ship with all its armor towards the front might be best. If you're in the thick of attacks from all sides, the spherical shape you suggest may be better. It all depends on so many unknown factors, it's hard to predict. For example, how good the targeting is. To dodge weapons firing at relativistic or light speed, you might be able to move out of the way continually to make a poor target, but that only works if the distances are great enough and if it's even possible to keep moving around like that without running out of propellant. At the 150,000 kilometers (light has to go from you to them for them to note your position, then they have to fire the laser back for a round trip of 300,000 km) it would take for a ship to have 1 second to move to a new position, the best collimated, most powerful lasers we have now would be spread out so much they might as well be a flashlight beam so dodging the best lasers we have now would be unnecessary. Also, even if we could deliver a pinpoint high-powered laser at that range, we may not be able to target it well enough, so moving around randomly might not actually decrease chances of a hit. On the other hand, if the lasers and the targeting get good enough (and if there aren't absolute physical limits preventing it), then moving to dodge becomes a viable strategy to reduce the odds of taking a hit.

      Ultimately, technological space warfare would be just like technological warfare on Earth. Balances would be found in ship design and strategy, then changes in technology or simply new ideas in strategy (or new implementations of old ideas) would come along and completely obliterate that balance. Big slow carrier ships with a carrier group to protect them might make sense in a given strategic situation. Then someone might develop a way to get 50% more propulsion out of the smaller craft that actually do the fighting and all of a sudden the carriers are obsolete and go into mothballs. A new battlefront comes into play with greater demand for manoeuvring from the smaller craft or a new strategy or innovation from the enemy requires the same and suddenly carriers are practical again. The enemy finds a reliable way to take out carriers regardless of the protection of the carrier group and carriers are out again and the smaller craft that do the fighting have to get a bit bigger. Someone finds a better countermeasure to protect carriers... etc., etc., etc. The designs, technologies and strategies that work will keep changing and changing. Super-effective, game changing weapons will become obsolete from simple changes in tactics. It will probably never settle on just one set of warship designs.

    8. Re:Self-propelled, autonomous munitions by An+ominous+Cow+art · · Score: 1

      Yes, Traveler, was the one with sandcasters. I believe they were also a little effective against missiles, too.

      Traveler also had planetoid-hulled ships. I had most of the High Guard ship construction rules memorized, one upon a time.

    9. Re:Self-propelled, autonomous munitions by Grishnakh · · Score: 1

      Ever heard of a missile or rocket? Those don't have recoil (not that significant anyway), they're self-propelled. Yes, if you're firing big bullets in space, you'll need something to handle the recoil (probably just a little extra engine power, depending on the mass difference between the bullets and the ship firing them). If you're firing rockets, it shouldn't be a problem.

    10. Re:Self-propelled, autonomous munitions by Grishnakh · · Score: 1

      I think the parent's spherical ship makes more sense here. Think about it: instead of angled armor, the entire ship is "angled"; anywhere you hit it, it would deflect, except if you hit it dead-on on a tangential path, but that's hard to do and would require too much accuracy.

    11. Re:Self-propelled, autonomous munitions by ZaMoose · · Score: 1

      Once again: rockets aren't standard kinetics. Think: bullets, railguns, etc. That which delivers its destructive power based upon mass, rather than energy, explosives, etc.

      --
      I wish I had a kryptonite cross, because then you could keep Dracula and Superman away.
  20. Ranges by Anrego · · Score: 1

    Weapon ranges might be an interesting topic, and so might countermeasures, given the lack of gravity.

    Beyond that, assuming the ships can generally move, communicate, and fire weapons I imagine a space battle would probably be very similar to naval warfare. The fact that someone can be 3 miles in any direction vs 3 miles in a compass direction I don’t see as really changing much.

  21. Donaldson by Jahf · · Score: 1

    Donaldson tried to tackle this in his Gap series. While no one will get it perfect, he hit on a lot of points (trajectories, small masses at high velocities) that most authors have neglected. Not the best scifi series in the world, but one that didn't get as much respect as it deserved.

    --
    It is more productive to voice thoughtful opinions (reply) than to judge (moderate) others.
    1. Re:Donaldson by MightyMartian · · Score: 1

      Mainly because by the time you got to the end of the series, you began to suspect there was something very wrong with Stephen R. Donaldson.

      But yes, he did take inertia into account.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    2. Re:Donaldson by Anonymous Coward · · Score: 0

      I'll nod to this and toss in Peter F. Hamilton's Night's Dawn. Ignoring the crazy Edenist space coral fantasytech, the idea of spherical capital ships spewing dozens of unmanned wasp-fighters that can maneuver at Gs that would crush living things to attack each other while mounted defenses attempt to screen the enemy's wasps seems appropriate. Even this model is broken by the zero-tau chambers being used as a free inertial dampening gimmick so that the big ships can jolt around at mutually insane relative velocities.

      So:

      Dodging capital-ship class fire, or intercepting it

      Sending in close-range drones from a 'safe' distance to do dirty work

      and then there are the atomic-level options that don't care what your ship is made of or how fast it is.

    3. Re:Donaldson by Hashi+Lebwohl · · Score: 1

      Searched for "Donaldson", found him, happy. He really did a good job with that series, if you can get over his innate misogynism. Also, Iain M Banks does a fantastic job with his "Culture" series.

      --
      I'm in to sadism, bestiality and necrophilia. Am I flogging a dead horse?
    4. Re:Donaldson by 19thNervousBreakdown · · Score: 1

      Is it as bad as the character-defining rape that occurs at the beginning of The Chronicles of Thomas Covenant?

      --
      <xml><I><am><so><damn>Web 2.0</damn></so></am></I></xml>
    5. Re:Donaldson by MightyMartian · · Score: 1

      Imagine it going on for about a quarter of the book, and the rapist being named Angus Thermopyle.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    6. Re:Donaldson by Thing+1 · · Score: 1

      White Gold Wielder FTW... I was thinking about this series the other day, recalling how sad it was that he was wandering the world with this power, but not many friends; and I did not recall the beginning. Thanks -- it makes more sense now, the emotions that I recall.

      --
      I feel fantastic, and I'm still alive.
  22. I think is time... by lsolano · · Score: 1

    That you and your friends stop playing that video game and have a different hobby.

    1. Re:I think is time... by slyrat · · Score: 1

      That you and your friends stop playing that video game and have a different hobby.

      After seeing this I had to post the penny arcade, since it actually deals with space combat, or at least in a sense ;).
      comic link

  23. Over before you know it... by Anonymous Coward · · Score: 0

    Given the possibility of rail guns being on these ships - it would most likely be completely infeasible to design a hull that could take those kind of hits and keep it's structural integrity without massively over sizing the ship, thinking conventionally.
    So maybe ships designed to allow impacts to pass right through and auto repair damage would actually be the only way to combat this?
    Even so - I'd guess whoever fires first wins. (As long as they aim at the habitable section / bridge / engine )

    1. Re:Over before you know it... by SJHillman · · Score: 1

      This is sort of how light carriers were built in WWII. I forget the battle, but the Japanese attacked a poorly protected American light carrier group with armor piercing rounds because they expected a heavy battleship escort. The armor piercing rounds passed right through the American ships without exploding, so the carriers were able to retreat. It's much MUCH more effective to only armor the bridge, munitions storage and a few other key systems and leave the rest up to bulkheads to prevent flooding (navy) or decompression (space) rather than armoring the whole damned ship.

    2. Re:Over before you know it... by vlm · · Score: 2

      Given an infinite amount of computational power and tech, simply shoot the rail round out of the "sky" with one of your own rounds. CIWS is old/ancient stuff on naval ships, I can't imagine something unimaginably more advanced not being deployed.

      That works against long range, because its so easy to lock and and pop them enroute. There will exist a short range where one side's super-CIWS will lose its control loop, then the other side wins. I would imagine that intel info would be very valuable...

      Too far away and its too easy to dodge the ship using maneuvering thrusters. A near miss by a millimeter means nothing in a vacuum.

      Whichever side has more railgun rounds fired per minute/second, wins, alternately, he who runs out of ammo first, loses, most likely.

      Also deployable chaff. Have you ever seen a .45 cal nearly subsonic round after it goes thru a target, it practically looks unfired assuming it hit nothing too hard. Have you ever seen a hypervelocity off the shelf .22 cal round after it hits a blade of grass? No, you haven't because it shatters into dust. Thats at low supersonic range. At mach 25 you hit a piece of mylar chaff and that projectile turns into plasma dust and there's no effect more than 10 feet away. So I expect to see lots of "junk" in space. Maybe even physical shields.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    3. Re:Over before you know it... by husker_man · · Score: 1

      Battle off Samar The Japanese Central Force stumbled across Task Force Taffy 3 (a bunch of escort carriers) thinking them to be Halsey's fleet. It engaged them with armor piercing rounds, but was driven off by the bravery of the escort vessels. Coupled with the losses they had already suffered, they were not all that willing to fight, and withdrew after a couple of hours. They were also concerned about getting trapped by the other forces coming from the north.

    4. Re:Over before you know it... by coastwalker · · Score: 1

      The opposition will sit a long way away and drop rocks on the relevant portions of your planet. If they are a space borne technological civilisation (potentially human) they will take advantage of your weakness. Chasing around in space will be won by the side that can harvest matter from convenient rocks the quickest. Spacecraft will never meet to do battle, delta v will see to that. The side with access to the most potential energy for moving assets will win.

      Civilised entities will disclose assets before a shooting war and one side will capitulate after simulation before entropic degradation. It is unlikely that the earth would remain habbitable given our current political maturity. A hot war would probably trigger a biowar and all interconnected habitats will die (on both sides) e.g. planets. (See Catseye by Andre Norton).

      Any entity capable of getting from another sun to ours will expect to exchange mutually benificial information and co-exist or will exterminate the human race with a virus. Shooting wars are for children, the grownups dont use it unless they find dangerous bugs that get in the way.

      Sorry, no space opera is imminent. Evidence for this is that we are already at the cusp at home. War as a method of influennce is already at the point where it is almost useless. Police actions against insane minorities is the only viable place for force - and its only possible where there is some consensus on what the law that the police enforce is. Eliminating nuclear weapons and locking up pirates will be a good test of how good we are at that as a lifeform.

      More worrying is the possibility of civil war inside nations with apparent consensus over the law, ideaological terrorism.and resource stress.

      Having said that, space opera is great entertainment.It will be won by firing ball bearings at the predicticted position of the opposition after their trajectory is determined. One half mv squared sorts the problem out when v is several thousand miles per hour.

      --
      Facts are history now plebs have politics for religion on social media.
    5. Re:Over before you know it... by vmaldia · · Score: 1
  24. Slow and distant by petes_PoV · · Score: 2

    First, actions would take place over distances of 1000's of kilometres. Maneuvering would be slow and expensive in fuel use - as would any change in course or speed. In that respect it would be like a naval action from the days of sail.

    However the weapons would be directed energy, rather than projectile and the vessels themselves would be almost impossible to detect - partly because of the distances and partly because of the stealthy designs they would employ. Visual detection methods would be almost obsolete, the only exception being to look out for occultations.

    --
    politicians are like babies' nappies: they should both be changed regularly and for the same reasons
    1. Re:Slow and distant by exploder · · Score: 2

      and the vessels themselves would be almost impossible to detect - partly because of the distances and partly because of the stealthy designs they would employ. Visual detection methods would be almost obsolete, the only exception being to look out for occultations.

      So all the ships would operate at a temperature of 3 Kelvin?

      --
      Yo dawg, I heard you like the Ackermann function, so OH GOD OH GOD OH GOD
    2. Re:Slow and distant by petes_PoV · · Score: 1

      So long as they radiate their IR away from the area of operations they could not be detected. There's no Tyndall effect in space.

      --
      politicians are like babies' nappies: they should both be changed regularly and for the same reasons
    3. Re:Slow and distant by Anonymous Coward · · Score: 1

      First, actions would take place over distances of 1000's of kilometres. Maneuvering would be slow and expensive in fuel use - as would any change in course or speed. In that respect it would be like a naval action from the days of sail.

      However the weapons would be directed energy, rather than projectile and the vessels themselves would be almost impossible to detect - partly because of the distances and partly because of the stealthy designs they would employ. Visual detection methods would be almost obsolete, the only exception being to look out for occultations.

      Right on the ranges wrong on the rest. Current directed energy weapons have pretty poor energy/area/time ratios when compared to kinetic systems. The one and only advantage DEWs have over kinetic systems is the "flight time" to target. They would probably make decent anti missile defenses but as ship killers they leave a lot to desire.

      As to detection ranges. With current commercial of the shelf systems it is easy to detect a thermal signature that is about 300 degrees above background at truly absurd ranges. Something the size of the ISS would be easy to spot from Mars. And the drive flare of the space shuttle as it launches can be seen from anywhere inside the oort cloud. Strategic surprise simply cannot happen, and though there are some ideas that suggest tactical surprise might be possible they are all pretty easy to circumvent.

    4. Re:Slow and distant by petes_PoV · · Score: 1

      Right on the ranges wrong on the rest

      But the range is the key. If your adversary is standing off 100,000 km away - halfway to the Moon, then throwing rocks at them is futile. Your only chance of attacking them in anything less than glacial time is with lightspeed.

      The faster that any kinetic weapons travel, the greater the energy needed to alter trajectory. That needs more fuel, more weight and therefore they represent a larger target, themselves - and the fewer of them a capital vessel could support/contain. However a 200MW reactor (roughly Typhoon submarine class), suitable shielded for thermal emissions could power a nice big laser canon in pulse mode (provided the crew are prepared to hold their breath for a few seconds while the capacitor bank charges up).

      So far as detecting emissions goes, you can only detect those emitted in your direction. If all the heat/IR is directed away from the "battlefield" it's invisible to anyone not in its path.

      --
      politicians are like babies' nappies: they should both be changed regularly and for the same reasons
    5. Re:Slow and distant by KDR_11k · · Score: 1

      Good luck with that, keeping your front at 3 kelvin and venting all the heat on the back.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    6. Re:Slow and distant by scheme · · Score: 2

      Right on the ranges wrong on the rest

      But the range is the key. If your adversary is standing off 100,000 km away - halfway to the Moon, then throwing rocks at them is futile. Your only chance of attacking them in anything less than glacial time is with lightspeed.

      The faster that any kinetic weapons travel, the greater the energy needed to alter trajectory. That needs more fuel, more weight and therefore they represent a larger target, themselves - and the fewer of them a capital vessel could support/contain. However a 200MW reactor (roughly Typhoon submarine class), suitable shielded for thermal emissions could power a nice big laser canon in pulse mode (provided the crew are prepared to hold their breath for a few seconds while the capacitor bank charges up).

      So far as detecting emissions goes, you can only detect those emitted in your direction. If all the heat/IR is directed away from the "battlefield" it's invisible to anyone not in its path.

      Alright, how do you dump the heat from that 200MW reactor? You're going to need a lot of surface area to radiate the waste heat for that away so that your spaceship doesn't overheat and kill everyone on board. And that's just for the weapon system. You also neglect to consider beam divergence. Your laser will expand in size as it travels so unless you have very good optics , you'll be range limited unless you dump massive amounts of power into the laser.

      Finally, unless you have some sort of system that will subvert the laws of thermodynamics, you can't direct the heat away from others. Parts of the spaceship will have a temperature above 3K or even 50K due to thermal conduction. Given that the various cosmic microwave background surveys are able to send up satellites that can detect variations in the CMB of less than 0.001K in a background of ~2.7K , any physically realizable ship is going to stand out pretty clearly regardless of what stealth technologies it uses.

      --
      "When you sit with a nice girl for two hours, it seems like two minutes. When you sit on a hot stove for two minutes, it
    7. Re:Slow and distant by AdamWill · · Score: 1

      i dunno why everyone's thinking so small in terms of distances.

      thousands of kilometres? that's practically touching. halfway to the moon? well, maybe now we're only very good friends.

      i mean, remember the douglas adams line. halfway to the moon is *nowhere* in terms of...Space. SPAAAAAACE.

      let's face it, we puny humans already have the technology - if, for some reason, we had the desire - to build a ship which could fly to mars, come back, and then blow up the planet. now you're the captain of the ship that has to stop that ship. if your capabilities cover a sphere with a diameter of 'half the distance to the moon', you are comprehensively fucked.

      for space combat to even be at all possible, defensive capabilities over truly mind-boggling distances - we're talking AUs here, not piddling thousands of kilometers - are going to need to get developed. somehow.

    8. Re:Slow and distant by Anonymous Coward · · Score: 0

      You could cool one side of the ship to 3 Kelvin and leave your hot side facing away from the enemy.

    9. Re:Slow and distant by 19thNervousBreakdown · · Score: 1

      How about a super-refrigerated none-more-black panel out on a long stick facing the enemy? Sure, the power it would take would generate even more heat to dump out the other side, but there's very little to scatter the radiation in space, so as long as that panel is between the enemy and a nearly straight line to all of your panels, you're invisible.

      --
      <xml><I><am><so><damn>Web 2.0</damn></so></am></I></xml>
    10. Re:Slow and distant by Tyrion+Moath · · Score: 1

      Sure you can see it from across the solar system, but only if you're watching... And there's an awful lot of space out there to watch.

    11. Re:Slow and distant by AmiMoJo · · Score: 1

      Hard to prevent neutrino emissions, and presumably you have some form of propulsion...

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    12. Re:Slow and distant by Anonymous Coward · · Score: 0

      I know it's hard to believe, but not all objects are Black Body Radiators. You will want parts of your vessel to be radiating, and other parts not so much. If you are below the threshold of the enemies detection gear, then you are 'invisible'.

      Space is actually not really empty. There are always stars that radiate in all frequencies. It's not a clean environment for the sensors.

      This means that where the enemy is is very important. If the enemy has a better idea of your location than you do of theirs, then they can find you quite easily.

      Stealth techniques are very directionally dependent. If you are generating power, then you are also having to dump waste heat. Waste heat will give your position away, but, you don't have to be careless about which direction you dump the waste heat towards.

      This is just one of the things that strategy for space wars will have to be concerned with.

    13. Re:Slow and distant by Anonymous Coward · · Score: 0

      With ships not maneuvering very fast, I'd think projectiles would be a pretty good weapon still. You can put a ton of kinetic energy into them, and in space it wouldn't dissipate in any measurable way. It would also be more efficient, if you used the right sort of propulsion technology. Furthermore, you can do bank shots with projectiles: Imagine you and your foe are on opposite sides of the same orbit low over an atmosphere free moon, you could fire a projectile behind you at enough speed to be in the same orbit but in the opposite direction, it'd collide head on with your enemy with incredible speed and they wouldn't probably have time to maneuver out of the way after seeing it barreling over the horizon.

  25. It would likely be shockingly simplistic by jayhawk88 · · Score: 1

    ...Assuming current level of technology. Like "fire a handful of small rocks at the enemy from a torpedo tube" or "launch several unmanned drones on a collision course". Without any kind of energy shielding tech, you either make your ships incredibly fragile, or cost prohibitive to get into space.

    1. Re:It would likely be shockingly simplistic by MightyMartian · · Score: 1

      With current level of technologies; "launch contents of bilge at high velocity" becomes a pretty whiz bang weapon. Death by shit pellets. 'elluva way to go.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
    2. Re:It would likely be shockingly simplistic by The_Crisis · · Score: 1

      either make your ships incredibly fragile, or cost prohibitive to get into space.

      Just build it in space. Utopia Planitia perhaps?

      --
      "It is a fine line between lazy and efficient."
    3. Re:It would likely be shockingly simplistic by jayhawk88 · · Score: 1

      Certainly possible, but even so, you have to get all that steel plating up there somehow. We're not at the point yet where we could just mine asteroids or whatever.

    4. Re:It would likely be shockingly simplistic by KDR_11k · · Score: 1

      AKA flechette rounds and missiles?

      MBTs these days carry flechette rounds that contain about a thousand pellets and fit into the 125mm main gun. There are also kinetic penetrator missiles if you aren't going for a simple kinetic penetrator "bullet". Of course against a lightly armored foe you're better off with explosive fragmentation rounds like flak.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
  26. One small rock by reezle · · Score: 3, Insightful

    One small rock accelerated for a long enough time then steered at a large ship (or moon or planet) would pretty much be the end of it.
    Can't really imagine much combat going on when it's a mutually assured destruction scenario any way you look at it.
    Most mass entertainment scenarios make sure that the attacking force needs to capture (not destroy) what they are attacking to make sure this doesn't come up.

    I suppose lots of tiny enclaves (small hollowed out asteroids) on both sides could duke it out with small ships. Still can't imagine a large enough industrial base to keep things going very long, though. Anything big enough to build ships would just be destoryed.

    1. Re:One small rock by vlm · · Score: 1

      One small rock accelerated for a long enough time then steered at a large ship (or moon or planet) would pretty much be the end of it.

      Why wouldn't the other side do the same to intercept enroute?

      Defender only has to use say, 1/2 the mass and energy to destroy the incoming projectile so defender seems to have the upper hand.

      One small rock does approximately nothing to a planet. The earth gets hit by those constantly. Assuming you mean human sized small rock like a baseball. If you mean small rock like a 100 foot asteroid, well yeah that is a problem. However the bigger problem is the planet has an entire planets worth of railguns and tracking stations to detect and blast it, and the visiting ship only has ... one dinky little ship to accelerate it. It gets complicated real fast.

      You can't argue the planet would be targeted by a near planet orbiting asteroid, because those are the first targets the planet would use for its own offensive ops! In other words if it were a "near hit" asteroid, it would already be the planets offensive weapon (or defensive?) long before the visiting team gets to try to use it against the planet....

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:One small rock by Anonymous Coward · · Score: 0

      The Lost Fleet series of books (http://en.wikipedia.org/wiki/The_Lost_Fleet) has a weapon that they simply called a "rock". One large mass shot from the ship at planets and other fixed installations on a calculated trajectory that hits like any asteroid impact. Heck the ships could even calculate where the planet might be at such and such time, then shot the "rocks" and then move on to a ship to ship battle with the enemy.

      Anything that is fire and forget would work wonders in space.

    3. Re:One small rock by suomynonAyletamitlU · · Score: 1

      There are still satellites (the manmade kind), which are not shielded against high velocity shrapnel. Any orbiting ships or stations will also want to avoid shrapnel, if at all possible, down to sizes that are essentially impossible to detect.

      Also consider this: Coming at the planet are 200 basketball-sized, high-metal rocks, and a nuclear bomb (EMP) with no EM signature (such as radio communications back home) that could burst in orbit, at the edge of the atmosphere, or on touchdown. Radar can't tell them apart. They have a tiny angular cross-section even assuming they're bunched up together, which they need not be. If they're spread out over several miles you'd barely know they're there. After a series of them turned out to just be metal asteroids, would stop caring and let them burn up, or keep destroying every last one? At what cost? Assuming the war has multiple fronts, how many people are you going to assign to this task rather than something more constructive?

    4. Re:One small rock by reezle · · Score: 1

      I guess I was thinking of near relativistic velocities. (Hence the accelerated for a long enough time clause)
      Not going to do the math right now, but if it's going fast enough it doesn't have to be that big.
      There's a lot of room for a running start out there in space...

    5. Re:One small rock by Dracophile · · Score: 1
      --
      Athy, athier, athiest.
    6. Re:One small rock by Anonymous Coward · · Score: 0

      targeting problem.

      due to high energies, the hit to kill ratio is generally assumed to be high

      but due to distances and speeds the shots to hits ratio might be very low

  27. A decent writeup here by rsayers · · Score: 1

    Pretty good article on this very topic from a few years back: http://josephshoer.com/blog/2009/12/thoughts-on-space-battles/

    That said, it's all pretty much guesswork at this point.

  28. Nothing like sci fi by onyxruby · · Score: 1

    For starters ships would look nothing like what you see on sci-fi shows. For example they always put the bridge exposed to the outside with panoramic views. In space that would gain you nothing and be a huge liability. Ships would not have wings and there would be no point in having a ship that was pointy on one end or the other like a sea going one.

    The concept of maneuverability in space is completely unrelated to what you would have on the surface. Nothing is gained from having something that is nimble, handling in space is completely unrelated to what you would have from a ship, car or plane on the surface. Form follows function and surface type functions largely are absent in that scenario.

    To answer your question you have to look at function. Are you talking about a current theoretical battle between nations in the orbit of our planet or are you talking about deep space? The answers to your questions depend entirely on the scenario and the requirements.

    1. Re:Nothing like sci fi by vlm · · Score: 2

      Offensive ship minimizes defense area by being needle like with weapons/CIWS launchers at the tip. Nice and long... if you get to flank it, its dead, but point on its indestructible and and dish out amazing damage per exposed frontal area.

      Defensive ship tries to minimize its surface area from all directions so its a sphere. You don't gain much by sneak attacks or flanking maneuvers on a sphere. I'd be a smart ass and make it as featureless as possible... Am I gazing into an engine nozzle, a railgun hole, or a nanite dump port? In attack mode you spin with the equator at the enemy and the poles in safe directions, to maximize how often each railgun at the equator can shoot. In deep space if you meet a sphere, they're probably cool, but if they start the "as the world turns" routine, then you'd best get the H outta there.

      Maybe that's how star trek always seemed to know if they're friendly aliens or angry aliens. If it looks like a ball, they aren't gonna attack. If it looks like a needle and you're looking at them sideways, they're dead if you want so they'll be friendly at least for awhile. If it looks like a needle and you're looking at the pointy end, its "You have no chance to survive make your time"

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:Nothing like sci fi by director_mr · · Score: 1

      This is always said, but it is not necessarily true. There is matter in space, and it does create drag. If you speed a ship up to a significant portion of the speed of light, it WILL affect it. If you don't believe me, look at comets. Why are they creating tails instead of some rotating cloud of vapor? And highly aero-dynamic shapes also help in deflecting kinetic and laser energy. Look at tanks, and how they have wedges in front to deflect rounds.

    3. Re:Nothing like sci fi by mattcoz · · Score: 1

      Comet tails have nothing to do with drag and everything to do with solar winds. They always face away from the sun, no matter what direction the comet is traveling.

    4. Re:Nothing like sci fi by TangoMargarine · · Score: 1

      If you wanted to be able to take the ship into an atmosphere, though, the streamlining would probably be helpful.

      --
      Unity? Screw that: XFCE. Slashdot Beta? Screw that: SoylentNews. Australis? Screw that: Pale Moon. UX developers DIAF
    5. Re:Nothing like sci fi by ceoyoyo · · Score: 1

      Comet tails are produced by ablation by the solar wind, not by friction from the comet's motion.

    6. Re:Nothing like sci fi by director_mr · · Score: 1

      Incorrect. Comet tails receive their gases from ablation from the sun, but solar wind is what pushes it away from the sun. Solar wind is caused by charged particles, which do indeed produce drag. If they didn't, comets wouldn't have a tail, and instead would have a cloud of vapor going around them instead of going out in a tail. The drag may not be a lot for us right now, but if you travel close to the speed of light, the effects could become significant. Also you didn't address the benefits of deflecting kinetic and laser energy. Additionally, the ship may want to enter the upper atmosphere of a planet, perhaps to dump speed or to change vectors more quickly.

    7. Re:Nothing like sci fi by director_mr · · Score: 1

      I never said it was due to friction from the comet's motion. The comet tail is indeed caused by friction, however. It is caused by interaction with charged particles from the solar wind.

  29. Silent by arth1 · · Score: 1

    It would be silent.
    And based on projections, not actual imagery. Because with vast distances, once you see something, it hasn't been there for a while from your perspective.

    My guess is that it will be all about hitting bases, and ignoring spacecrafts.

    1. Re:Silent by quintus_horatius · · Score: 1

      My guess is that it will be all about hitting bases, and ignoring spacecrafts.

      Don't be so sure.

      As soon as someone is thinking about destroying your immobile base with mobile craft, you're going to worry about stopping their craft from reaching it.

  30. Inertia would be a major factor by Anonymous Coward · · Score: 0

    Just like in sea battles, ships would have to plan way ahead to to their direction, except even more so because there is no water to slow them down.
    Since we haven't gotten ray guns working yet, we'd have to use bullets and rockets. Launching anything big enough to do damage to a heavily armored space ship would affect the yaw, pitch and roll of the ship in ways that would make it hard to handle, so we'd want a lot of help from a computer to fire the thrusters to keep the ship on course.
    Maintaining even an orbital fleet would probably cost 100 times what it does to float a navy, since you'd have to lift everything first, so not many countries could pull it off.

  31. Same as always by nairnr · · Score: 2

    Well, first come out of your mother's basement and check out what we like to call "daylight". Then go back and roll for damage...

  32. Single exchange of nukes by Anonymous Coward · · Score: 0

    If I had to design a space warship based on modern-day technology, it would probably look probably somewhat similar to a sojuz capsule, except with nuclear missiles instead of solar sails.

    The Nuke warheads would be encased in styrofoam or aerogel (to create a nice plasma pressure ball), spiked with depleted uranium or tungsten balls as splinter projectiles.

    The whole thing would be painted black, as black as possible, to avoid early detection - because the important thing in a modern space battle is to obscure your precise orbital parameters. The battle itself would probably not look anything like what you know from a scifi movie: Using as many passive sensors (such as telescopes, radar recievers, etc), the first one to notice an approaching foe fires his comple lob of nukes into the approximate orbital plane of the target. He would then eject a couple of realistic-looking inflatable decoys of his own ship, and perform a retrograde burn for rapid re-entry into the atmosphere (since his nukes are spent, what's the use in sticking around?).

    The warheads detonate, distributing liquid tungsten at near-relativistic speeds in the vicinity of the target. Most of them won't hit, but some will. No armor possibly protects against them. And if the attacker is very lucky, the other side will not have shot back, or miscalculated his orbital reentry trajectory. That's all.

    Notice all of this can easily be done by robots as well. No need to keep humans around.

    These lunar tritium freight-shippers will never know what hit them.

    1. Re:Single exchange of nukes by vlm · · Score: 1

      Amusingly the Russians F'ed around with firing a rifle in space about 50 years ago. Much more likely outcome is the first ship ejects the nukes and bails out second ship uses off the shelf naval CIWS to pop the incoming nukes, after all you don't need to vaporize them just damage them enough that they don't go off, then the second ship wins because they're still in orbit with a full payload of nukes surrounded by a shield of space junk you'd have to impact if you tried to sneak up on them.

      Complicated, isn't it?

      This is almost as much fun as old fashioned DnD. Now how did that go "I put on my robe and wizard hat, and"

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  33. Projectile and Particle Weapons by CFBMoo1 · · Score: 1

    Space based rail guns and hitting ground targets are a matter of coaxing the right asteroid to a proper corse to impact a target on a planetary body using a combination of oribital gravity nudges from the gravity of your ship and possibly heating the asteroid/comet at the right locations to vent off material and push the rock to target.

    --
    ~~ Behold the flying cow with a rail gun! ~~
    1. Re:Projectile and Particle Weapons by vlm · · Score: 1

      that works a lot better if the victim hadn't already put a monitoring probe on each asteroid including the one you're Fing with, and also stabbed a robotic railgun into each of the other neighboring asteroids and the neighbors are pelting you continuously with railgun rounds as you try to nudge the asteroid into the target planet. I'm not placing good odds on this, but even if it works, once the target planet figures out what you're up to, they start nudging an asteroid of their own into a collision course with yours... in fact since robots are cheap, the start nudging 20 to impact your asteroid because they only need one to work, but they're cheap, so...

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  34. Size Matters by Anonymous Coward · · Score: 0

    Like every other type of warfare, it depends on the tech available. David Weber's Honor Harrington series has a lot of well-thought-out space combat. Missiles rule the day during one point-in-time but later on miniaturization allows for smaller craft to take down capital ships, allowing for the use of aircraft-carrier style combat.

    The main factor will always be: What is the smallest thing we can produce that will carry enough punch to destroy an enemy.

  35. Where is it Happening? by Anonymous Coward · · Score: 0

    Combat in near-Earth orbit would be nothing like interplanetary combat, and in turn in-stellar combat would be vastly different. The distances, velocities, and the weapons would all differ as land, sea, and air combat do.

    One thing I can tell you: no dogfights (a la Star Wars and Battlestar), there's no friction or air in space; accordingly, the maneuvering is as easy as thrust vectoring to turn around. Got a bogey on your tail? Turn around and blast him!

    The specifics I would hazard: lasers, lasers everywhere! Ballistic and missile weapons are HEAVY, they have recoil, and are subject to extreme travel times at the distances that one encounters in space. Only the largest (likely space-only) ships would have a prayer of using them effectively.

  36. In Space no can hear you scream by Dupple · · Score: 0

    Only in the craft itself briefly. Sound needs a medium to resonate.

    --
    Watch those corners
    1. Re:In Space no can hear you scream by vlm · · Score: 2

      There's always the interstellar medium. There's not much of it, but its there. With all the cheesy "turn images and graphs into computer generated sounds" that I've had to suffer thru over the decades, that is one that I've never heard but would enjoy hearing. Sample, Fourier transform, play back at a substantially accelerated speed, all done.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:In Space no can hear you scream by infolation · · Score: 4, Funny

      What does 'whoosh' sound like in space?

    3. Re:In Space no can hear you scream by Rei · · Score: 4, Interesting

      Yeah, the "silent space combat" meme comes across to me akin to the "there's no ice in Iceland and no green in Greenland" meme -- things people say to try to sound smart that are based on elements of truth but which get taken too far. Sound may not travel through space, but a supersonic-propagaing sphere of compressed gas from high explosive warheads do. A missile slamming into your spaceship sure as heck is going to make some noise (even a laser ripping it up). A shower of debris from exploding craft near you is definitely going to make noise. Etc. And spacecraft are often (at least with current tech) rather noisy places to be to begin with; sound isn't dampened well. So yes, "sound" doesn't travel through space effectively, but that doesn't mean space combat will be quiet.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    4. Re:In Space no can hear you scream by queazocotal · · Score: 3, Informative

      The maximum transmissible frequency of sound is proportional to how fast stuff is bouncing off other stuff.
      Even in a fairly dense cloud, of 1 atom a cubic centimeter, this interaction happens around every billion kilometers, and thousand years.
      This means that the highest frequency that can be transmitted over long distances is about one pulse every ten thousand years.

      You're not making any sounds.

    5. Re:In Space no can hear you scream by Kittenman · · Score: 1

      What does 'whoosh' sound like in space?

      This

      Got it?

      --
      "The greatest lesson in life is to know that even fools are right sometimes" - Winston Churchill
    6. Re:In Space no can hear you scream by vlm · · Score: 1

      If your space combat results in only one atom per cc, then you're not really doing combat, you're taking a nap.

      Its still a "sound" even if you have to doctor it up. I can't hear ultrasonic sonar pings directly, but with a bit of mathematical fooling around I certainly can.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    7. Re:In Space no can hear you scream by multimediavt · · Score: 1

      Put your head near my butt after a few pints of Guiness and I'll show you...

    8. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      Exactly like explosions in space.

    9. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      Like being in a cave filled with helium, while you're wearing earplugs.

      Helium has half the density of air and it makes the pitch of people's voices twice as high. But, in the dusty vacuum of space it's not that everything would be high pitched, just that the low pitched sounds would be so much more attenuated.

      I imagine sounds would be mostly crumbling, scraping, or pinging with possible echoes if you're near an asteroid or comet. All the low frequencies would be coming from your own ship, and the whisper of higher frequencies would be nearby objects in space heating/cooling or colliding.

    10. Re:In Space no can hear you scream by realityimpaired · · Score: 1

      From the point of view of the person on the receiving end, it won't make any noise until it hits.

      From the point of view of the sender, depending on the type of weapon being used (let's assume a chemical propellant, as that'll make the most noise), it'll make a loud noise that'll die off quickly as the gases disperse in the vacuum. Energy-based weapons, or magnetically propelled weapons will likely make less noise, or possibly a continual hum of electronics as capacitors charge with no discernable difference when the weapon is firing. And let's be honest: until "phasers" become a reality, a gauss gun is far more likely for space combat than a chemically propelled missile, because you would need to carry less fuel.

      From the point of view of the camera watching the fireworks from several kilometers (or hundreds of kilometers) away, it won't make any noise at all.

    11. Re:In Space no can hear you scream by Grishnakh · · Score: 1

      The only sound you'd hear in space combat is when things actually hit your spaceship, whether enemy ordnance, that shower of debris, or the compressed gas you mention. So it'd probably be a rather odd sensation, as you'd see things happen silently, then hear their effects a little bit later if they happened to strike your ship. Of course, you'd hear all kinds of noises from your own ship, whether it's your engines, your guns, etc.

      But if you see an enemy shooting kinetic projectiles ("bullets") at your comrades, you probably won't hear any of that.

    12. Re:In Space no can hear you scream by beep999 · · Score: 1

      "Sound may not travel through space, but a supersonic-propagaing sphere of compressed gas from high explosive warheads do."

      The term "supersonic" has no meaning in space. You can't go faster than sound in a vacuum...

    13. Re:In Space no can hear you scream by Runaway1956 · · Score: 1

      Yep. You forgot to include something though. Your own weapons are going to be noisy as hell. Few people can appreciate that, unless they've been around weapons and weapons platforms. Laser, railgun, gun, anything on your ship or attached to your ship is going to generate it's own hellacious noise.

      Nor did you mention the noises produced by you and your shipmates when your ship takes a hit. People do tend to emit noises when they take shrapnel into various parts of their bodies, or those various parts are exposed to extreme heat, cold, or vacuum.

      --
      "Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
    14. Re:In Space no can hear you scream by Rei · · Score: 1

      It has meaning inside your warhead. High explosives are explosives in which the detonation (conversion of the chemicals to hot gas) occurs faster than the speed of sound in the explosive material.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    15. Re:In Space no can hear you scream by Rei · · Score: 1

      It depends on how much shrapnel is coming off your comrades' ships, how much fragments of the impacted bullets are ricocheting, etc.

      Some things in space will be much more muted if totally inaudible, while some will be much more prone to making noise. For example, if you're standing a thousand feet away from a bomb going off in a big bucket of sand, on the surface, that sand's probably not going to do anything to you. In space, you're going to get showered. Debris just keeps on going until it hits something.

      --
      "Now we're getting to Science -- I love this!" -- Dr. Steven Chu, Energy Secretary confirmation hearings.
    16. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      Your stupidly childish attempts to justify your position aside, for all practical and reasonable interpretations of the idea, there is no sound in space.

      You may now return to arguing with nerds about Han shooting first.

    17. Re:In Space no can hear you scream by Jappus · · Score: 1

      Sound may not travel through space, but a supersonic-propagaing sphere of compressed gas from high explosive warheads do.

      Most of your points where direct contact are concerned are true. If your ship gets hit, you'll hear and feel something, depending on where the ship is hit and what kind of secondary damage is caused.

      But the point about the sphere of compressed gas is lunacy. At the distances involved in any sensible combat, anything short of nuclear blasts will not yield you more than a light breeze of compressed gas, due to the fact that the density of the gas decreases exponentially with the distance travelled. And exponential decrease will make any bug number very small, very fast.

      You also need to take into consideration, that there is only negligible transmission of compression in space. The gas you compressed through the initial explosion is not able to transmit its energy directly from molecule to molecule. Instead, the particles need to move directly from the source to you. It's the difference between exploding a shell underwater; where you can hear and feel a small explosion even when it happens hundreds of meters (in case of hearing kilometers) away, and trying the same in plain air. Since there are less molecules to transmit the compression to, and they need to travel further until they smash into the next molecule to transmit their energy towards you, the transmission is vastly more inefficient and as such of more limited range and impact.

      Finally, in space you can only compress what is actually there. So instead of compressing a spherical shell of thousands of tons of water and transmitting the energy directly from molecule to molecule, you can only compress a few kilograms of rarefied gas, plus the gas from the original explosion (which can't weigh more than your bomb itself) and have to actually get most of the original molecules from the point of explosion to the point of impact. Since the speed of the molecules is constant; as the speed of your explosion is, it's the difference between being hit by large train travelling 60km/h and being hit by a ping-poll ball travelling 60km/h. One will turn you into mush, the other will make you want to turn the other guy into mush.

      Summarized: same energy of explosion + less gas to compress + less efficient compression + larger distances ~= a drop of water on the Mount Everest. Sure, given enough time and repetition you might eventually erode the mountain away, but chances are that the stuff that is inside the water will actually deposit more matter than it erodes.

    18. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      but a supersonic-propagaing sphere of compressed gas from high explosive warheads do

      Most of the bang from those warheads comes from the fact you have an entire atmosphere worth of pressure containing the explosion, which is where most of the explosive force actually comes from. Sure, you'd have a little bit of pop and some expanding gasses in a vacuum (or near-vacuum) but there isn't enough mass to really be noticeable from the distances you'd be dealing with in space. In addition, all you'd have to shield against is some hot gasses, and quite frankly any vehicle equipped for re-entry into an atmosphere deals with much worse every time it hits the atmosphere. A few ceramic tiles, and you're just fine barring a direct hit.

      A missile slamming into your spaceship sure as heck is going to make some noise (even a laser ripping it up).

      Oh, yes indeed and because you don't have any external environmental noises to speak of, it'll sound loud as all fucking hell to the people on the craft. And probably make the thing pop like a balloon while everything inside cooks off rather quickly.
      But good luck with that, as missiles are rather slow and bulky and easy to see coming, and require a ton of mass to propel them. You'd probably not be launching many of those from an orbital platform unless it's a massive capital ship firing on another very large object.

      The most likely type of missile against any craft we'd build in the foreseeable future, would be a rocket which would have a shrapnel-based warhead that would burst when it got close, throwing a spray of metal at the target.

      But the most likely type of weapon would be a railgun, which uses electrical energy harvested from solar cells and/or on-board nuclear plants to fire a small projectile at very high rates of speed.

    19. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      I thought we were talking about sound in space fights, not sound in warheads in space fights...

    20. Re:In Space no can hear you scream by vlm · · Score: 1

      There's no interstellar medium? There's no pressure waves in it? LOL

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    21. Re:In Space no can hear you scream by tehcyder · · Score: 1

      What does 'whoosh' sound like in space?

      John Cage's 4'33"

      --
      To have a right to do a thing is not at all the same as to be right in doing it
    22. Re:In Space no can hear you scream by johnnysaucepn · · Score: 1

      The argument about silence space combat is not that people on either ship wouldn't be able to hear sound, but that from the viewer's perspective, outside the ships, no sound would be heard. I'm always inclined not to worry about it, because the point is to portray the experience of the protagonists from an outside viewpoint, rather than being a detached documentary.

    23. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      What does 'whoosh' sound like in space?

      like this:

    24. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      Of course, inside a cockpit, you're going to be screaming your ass off if you got a reason and sure enough, you've probably figured out how to hit the microphone transmit button as well, so pretty much everyone within radio range is going to hear you scream...

      And even if they don't, well, they'll probably say they did so you don't try it again...

    25. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      same as in a library: 'shhhhh'

    26. Re:In Space no can hear you scream by GameboyRMH · · Score: 1

      Dead Space 2 realistically depicts sound in space. You can only hear things physically connected to your suit.

      When I had to realign those solar arrays it took quite some time for me to figure out why the hell my character was suffering from spontaneous dismemberment, because there was no way for me to know a bladed alien projectile was rushing towards me unless I saw it coming. If there was an atmosphere I would have heard all kinds of noises.

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    27. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      Yes, you'll hear the explosions, the screech of metal tearing and a loud thump from the rapid depressurization of your unfortunately fatally located battle station. But if you are still conscious as the depressurization gust sweeps you into the void through the gaping hole in the hull, it will probably quiet down fairly quickly. The pain from all of the other Bad Things happening to your body(because that pesky helmet was such a pain you weren't wearing it) will likely distract you from the tranquility of the beautiful vistas.

    28. Re:In Space no can hear you scream by Anonymous Coward · · Score: 0

      http://curious.astro.cornell.edu/question.php?number=8

      So say you were in a spaceship in the middle of a big space battle and a nearby ship exploded. The exploding ship would release gasses and technically sound could travel along with them. However, since space is a vacuum, these gasses will spread out very rapidly and the density will drop off very fast with distance from the explosion. (If you think about it, the amount of air in the ship is probably not very large compared to the volume of space between two ships.) So by the time the explosion reached your ship nearby, any sounds carried by the gas would still be too faint to hear. It seems more likely to me that what you would hear would be the shrapnel from the explosion banging into the hull of your ship. As you point out, it depends on distance. If the your ship was directly next to the exploding ship, you would be more likely to hear something, but it would also be bad news for your ship and crew!

      You're not generally going to hear anything from "nearby". You'll hear plenty from crap banging into your own ship though, and other sounds originating from within your ship. That sound is not being transmitted through the space. Explosions don't magically outgas huge atmospheres of sound transmission medium. Sure, they'll put out a bit, but not remotely near enough to play a significant factor in being heard from nearby without risking killing the ship nearby in the process.

      Go watch some video footage with audio of a shuttle launch or somesuch. Sound from rockets goes away awfully fast once they separate. Go figure.

    29. Re:In Space no can hear you scream by camperslo · · Score: 1

      You're not making any sounds.

      Perhaps the equivalent of sound could be heard by picking up modulation to light, magnetic fields, or some other energy. Could an EMP in space cause audible vibration of polar molecules in the atmosphere? I'm guessing yes, at least if the frequency spectrum of the EMP has a strong low-frequency component. The magnetic component may even cause measurable sound/vibration in the Earth. Has anyone tried to measure such things from major solar flares? I don't know that I'd go so far, but a few taking a bigger leap even think it is possible to generate earthquakes.

      I think it is possible for non-acoustic energy to transmit something that ends up being perceived as sound at a destination separated by vacuum.

  37. Star based by Anonymous Coward · · Score: 0

    All our most abundand energy comes from the stars, a good mirror can focus more power than a BIG ass laser.

    I foresee colony ships, probes, long range sensor ships, and mirror ships to 'cook' the enemy.

    1. Re:Star based by sideslash · · Score: 1

      All our most abundand energy comes from the stars, a good mirror can focus more power than a BIG ass laser.

      The problem you will run into there is the inverse square rule that makes your light intensity sharply drop off. Unless you're pretty near the sun, you won't even be cooking an ant, much less burning through a spaceship hull.

      I foresee colony ships, probes, long range sensor ships, and mirror ships to 'cook' the enemy.

      No, once again, anywhere other than right next to a star all your mirror ships will do is project a nice child's bedroom starlight display at your enemy.

    2. Re:Star based by fiannaFailMan · · Score: 1

      All our most abundand energy comes from the stars, a good mirror can focus more power than a BIG ass laser.

      The problem you will run into there is the inverse square rule that makes your light intensity sharply drop off. Unless you're pretty near the sun, you won't even be cooking an ant, much less burning through a spaceship hull.

      I foresee colony ships, probes, long range sensor ships, and mirror ships to 'cook' the enemy.

      No, once again, anywhere other than right next to a star all your mirror ships will do is project a nice child's bedroom starlight display at your enemy.

      I would imagine that the distance between the weapon and its target would be a bigger factor. If your target is close enough, then you can still be 93 million miles away from the star. Concentrated solar energy is powerful enough to drive steam turbines on Earth, why shouldn't it be potent enough to power a weapon?

      --
      Drill baby drill - on Mars
    3. Re:Star based by Anonymous Coward · · Score: 0

      The inverse square rule applies to energy that is radiated in all directions. It does not affect a collimated beam.

    4. Re:Star based by sideslash · · Score: 1

      Sure, but you still need to be near a star to have something to work with. (For what it's worth, we are reasonably near a star.)

  38. History Channel did it by PrescriptionWarning · · Score: 2

    "The Universe" documentary series had an episode on "Space Wars". Pretty interesting actually, and its up on YouTube. http://www.youtube.com/watch?v=tYvVmPJ-HYE Space dogfights in particular were pretty crazy in that video, it mostly centered around combat that moved so fast only robots would be able to perform these maneuvers.

    1. Re:History Channel did it by bidule · · Score: 1

      It was terribad. None of the CG of that show is realistic. Instant mass-driver hit on the Moon, visible laser beams, exploding satellites, space pirates matching trajectory, inertia-free fighters, no reaction mass. It was all there. They forgot the edu part of edutainment.

      --
      ID: the nose did not occur naturally, how would we wear glasses otherwise? (apologies to Voltaire)
  39. Don't forget to bring a towel by Anonymous Coward · · Score: 0

    It would likely resemble the the bong that was being smoked while staying up all night debating what space combat might look like.

  40. Nice reference site by Anonymous Coward · · Score: 0

    Project RHO has a wonderful compilation of information on this topic, the url below is at the introduction. Just mouse over the top right to get the topic list to see the rest. (The site used to be much easier to navigate, but is a bit stranger since they updated it.)

    http://www.projectrho.com/rocket/spacewarintro.php

  41. Or computer space combat? by JCPM · · Score: 0

    In a combat rich vs poor, the rich always wins.

  42. Blast to the past by SJHillman · · Score: 2

    I imagine it would bear a resemblance to the old sailing ships. Any maneuvering would have to be done before you engaged the opponent, as it takes quite a bit of energy and fuel to maneuver inside of a vacuum. Ships would try to come at their opponent at a T while firing large mass drivers. Although lasers are more effective in space than on land, I don't think they would be nearly as effective as huge chunks of mass. Electronic launch systems would solve many of the problems with recoil. Lasers would only make sense if the fuel required to power them is more mass-efficient than the combination of fuel required to power mass drives plus the mass itself.

    Fighters/bombers like we traditionally think of them probably wouldn't be used. Instead, small single-manned ships could be used to stealthily deliver a single-shot payload - they would operate more like mini-subs carrying a single torpedo.

    1. Re:Blast to the past by Anonymous Coward · · Score: 0

      Would someone please smack everybody that thinks that a railgun won't have any recoil...

      Action-Reaction will still apply, if you accelerate something out of a gun, no matter the way you do it, you WILL accelerate the gun in the opposite direction with the same energy.

      The only reason the gun doesn't move as fast as the projectile is due to the fact that the gun and the gun-platform masses many, many times that of the projectile.

      I will however agree that space combat may well rely on projectiles, probably small ones from a gun that is mounted along the central axis of the ship so that the recoil won't start spinning the ship. Missiles won't work as they will have trouble maneuvering fast enough to avoid being burnt to a crisp by anti-missile lasers. Drones might work but only if they are given effective guns that work from a distance and have onboard intelligence (not a human being though) up to the task of independently engaging a moving target in a high g combat enviroment. Lasers will probably not work on ships with humans on board, we would probably armor them enough that even a seriously powerful laser wouldn't burn through before the ship starts spinning or maneuvering to spread the heat.

    2. Re:Blast to the past by Anonymous Coward · · Score: 0

      Oh and I forgot, fighting in space will probably have an awful lot in common with sub-warfare. Using passive sensors to sniff out the signals and gasses (no seal is ever 100% effective) leaking out of your enemies ship, then launching an attack as quietly as possible and leaving the area before they even know you are there or the munitions (drones) reach effective engagement range. These sorts of attack would probably be started at several lightseconds range and way out of range for any sort of direct response by shipmounted weapons. Tracking inaccuracies and the fact that the ship vibrates chaotically (sort of) will prevent direct laserfire from being all that concentrated and the same, plus the lower projectile speeds, would make long range gunnery ineffective as well.

    3. Re:Blast to the past by Anonymous Coward · · Score: 0

      More likely that unmanned drones would be used instead of single man ships. They could tolerate much higher g-loads than humans and potentially have much higher reaction times. Which means they would survive longer.

    4. Re:Blast to the past by Anonymous Coward · · Score: 0

      Don't want to bust your bubble too hard, but electronic launch systems will solve exactly ZERO problems with recoil. Some old white dude named Newton screwed that up for you.

      Only way to avoid problems with recoil is to mount drives on the projectiles.

    5. Re:Blast to the past by SJHillman · · Score: 1

      So electronic launch would have exactly the same recoil as using chemical explosives?

  43. Read David Weber's Honorverse books by hargrand · · Score: 1

    David Weber does a fair job at incorporating physics into his space battles... it's a place to start perhaps.

    1. Re:Read David Weber's Honorverse books by Raul654 · · Score: 1

      I've read all the honoverse books and I like them a lot. But the question per-supposed a level of technology that exists today or will exist in the near future. The Honoverse books are set 2,000 years in the future for good reason. With the exception of life-prolonging techniques (Prolong in the books), we're not going to see invent of that technology anytime soon.

      --


      To make laws that man cannot, and will not obey, serves to bring all law into contempt.
      --E.C. Stanton
    2. Re:Read David Weber's Honorverse books by hargrand · · Score: 1

      Granted, but by the same token physics is physics. The big notion I've taken away from his description of space battles is that regardless of the technology, it's all about occupying a point in space at a point in time and that superior acceleration is key to doing so better than your opponent. While most of the weapons he discusses are very far advanced relative to what we can produce (though bomb pumbed X-ray lasers are straight out of SDI in the 1980's) he frames the discussion in terms of Newtonian and Relativistic physics (until he gets into FTL realms at least) which is, as I mentioned, a place to start.

  44. Gunbusta! by Malenx · · Score: 4, Funny

    If I've learned anything from anime, it's that space battles will consist of giant armadas of robots piloted by people who all get slaughtered until a random girl in a giant robot suit with infinite capabilities eventually achieves the self esteem she needs to take the fight straight to the bad guys and wipe them out, escaping at the last possible second.

    1. Re:Gunbusta! by Anonymous Coward · · Score: 0

      After bouncing through the magnetic field, the first wave of fighters would pass across the axis and try to draw the fire of the guns while the bombers lined up for the run down the trench. Since the exhaust port is ray-shielded, everyone probably needs to learn to range and fire photon torpedoes which make an abrupt 90 degree turn.

    2. Re:Gunbusta! by Anonymous Coward · · Score: 0

      And she's really hot.

  45. antimatter cannon by Anonymous Coward · · Score: 0

    Shoot antimater through a vacuum.
    First normal matter it meets - utterly obliterated

    then we have the landmines problem on a bigger scale;
    after the war there will be unreacted antimatter floating around

  46. Two ships by Inda · · Score: 2, Insightful

    Two ships would face each other, head to head.

    The first ship would power the weapons.

    The second ship would not, so as not to seem hostile. There's a sense of bravado; manly posturing, but dialogue is the weapon of choice.

    The first ship fires a single anti-graviton phase beam.

    The second ship explodes because Picard is a pussy.

    That's how future space battles are fought.

    --
    This post contains benzene, nitrosamines, formaldehyde and hydrogen cyanide.
    1. Re:Two ships by Noughmad · · Score: 1

      You forgot to mention the Deflector Dish. That single mistake inverted the polarity of received mod points.

      --
      PlusFive Slashdot reader for Android. Can post comments.
  47. It would be causalty free. by wbr1 · · Score: 1

    Mostly SMALL remote control and semi autonomois craft doing things to each other. Since we cannot seem to to get humans out of LEO.
    And space opera comes to slashdot.

    --
    Silence is a state of mime.
  48. Re: Humans of no? by PaulMorel · · Score: 1

    People wouldn't give up a fight unless there was a human cost. So the idea that it would be drones is ridiculous. Why would an institution/government waste time killing drones? That won't end the war. If space-war was only drones, then one enemy would take the fight to the population. Basically the concept of space war is a little ridiculous.

    --
    burrocrisy
    and that would be what? Ruling by jackasses? Never has a slashdot misspelling been more apropos
  49. Seriously? by Anonymous Coward · · Score: 0

    Right now,space battles would look a bit like cowboy showdowns:

    One spy satellite encroaches on the territory of a 2nd spy satellite. First satellite to shoot will probably win, with some unknown chance that they both get destroyed. Person with the most armed satellites probably wins, but there's some room for good tech and smart choice of targets to trump numbers.

    No humans die outright, though the resulting destruction of communication and navigation satellites may create secondary casualties. It is unlikely that satellite debris creates any serious issues for those planet-side.

    Alternative: One unarmed shuttle rams into another unarmed shuttle. The more massive shuttle will win, or it will be a tie. A small crew will die. Unarmed shuttle could knock space station into a death spiral toward the planet, but then the shuttle crew will probably die and the space station crew might die (if a huge hull breech happens and everyone gets vented to space) or evacuate (in any non-instant-death scenario).

    In any situation, there would be a lot of heated political planet-side rhetoric and a massive backlash from every nation on the planet against the initial aggressor. The only way to win, long term, would be to make it look like your opponent shot first.

    Newsflash: we don't have combat-ready spaceships. Heck, the US doesn't even have spaceships right now, period. We (any country) don't have the capacity or money to build them. We don't have any way to fly them or arm them effectively. There are no capital ships, or even plans for capital ships. Get off Eve and back to the real world, please.

  50. figured out in the 80s by Anonymous Coward · · Score: 0

    Asseroids on steroids

  51. My take by Raul654 · · Score: 2

    I'm going to start from a few first principles here. First - and I don't think this one is seriously open to dispute - (A) space is an exceptionally harsh, unforgiving environment. Failure in any one of these systems: the hull, the carbon dioxide collectors, the heating unit - will render a space vehicle uninhabitable. A failure in either the engines or navigation system will likely lead to a ballistic course to nowhere.

    Now, (B) if the history of human space exploration is any indicator, we really don't know how to build fault-tolerant space systems at all. Almost any malfunction tends to produce a catastrophic outcome. Putting principles A and B together, any battle damage of any sort is likely to render the vehicle unsurvivable and kill all the crew.

    Now, consider the expense of launching anything of size. Remember, the ISS is the most expensive structure ever built by man. So the idea of putting large, fragile, massively expensive craft (where they can be shot down by space-capable ballistic or nuclear missiles, or damaged with a ground-based lasers) is a total non-starter.

    If you want to know what a real war in space looks like with our current level of technology, it's going to involve small, expendable space-based satellites hiding from ground-based things radar and weapons.

    And lastly, *any* space combat is going to dramatically increase the amount of space debris in orbit of earth (as China's test a couple years ago did, or the accidental irridium satellite collission did). Just a few incidents could turn dramatically render Earth's near space too dangerous for manned craft for a long time to come.

    --


    To make laws that man cannot, and will not obey, serves to bring all law into contempt.
    --E.C. Stanton
    1. Re:My take by Anonymous Coward · · Score: 0

      Heating isn't that big of a deal -- vacuum insulates things, remember? Losing the heating system would not be immediately catastrophic.

    2. Re:My take by Raul654 · · Score: 2

      Space being a vacuum would help if spacecraft cooled down via conduction. They don't. They cool down by emitting blackbody radiation, which all warm bodies do.

      On Apollo 13, they lost the heating system and within a day the craft had cooled to below freezing. Another two days and it would have become uninhabitable.

      --


      To make laws that man cannot, and will not obey, serves to bring all law into contempt.
      --E.C. Stanton
    3. Re:My take by nedlohs · · Score: 1

      You know what insulation does right?

      So what happens to the heat generated by your laser weapons and engines and life support?

      Oh yes it cooks you. Unless you expose your heat radiators at which point they get shot off and you cook anyway.

      The world's most boring war battle environment. No stealth since everything is hot and stands out against the cold background. Shooting your lasers at the other guys laser lenses. Until one of you runs out of heat sink and cooks.

    4. Re:My take by camperdave · · Score: 1

      You could also heat up some ballast and dump it overboard.

      --
      When our name is on the back of your car, we're behind you all the way!
    5. Re:My take by Anonymous Coward · · Score: 0

      The example of naval combat is extremely helpful here. Initially ships were being deathcages for their staff. Everything changed with technology advance so we have partitions on the ship and hitting one of its elements is not destructive to whole system. The same will eventually be used in space ships when they become of the acceptable inner size. Currently there is no point in setting up shatters inside a small room all space travelers reside nowadays. Almost every SF movie actually shows such solution for big ships and that's correct.
      Even closer example for the space combat is underwater submarine combat. Lack of sound is one of big difference and other one is lack of properly defined up and down but other than that it must be quite similar. Maneuvering completely based on devices and then trying to hit what we expect the enemy is. Traps and decoys. Fast attacks and all running around only makes you more visible and allows for even fully automated destruction by on-board computer of enemy ship.
      Sure drones will be widely used but the other side will stop those drones using one drones. Then it will be again standard human vs human ( or whatever else ) fight. Like always.
      War never changes ...

    6. Re:My take by Raul654 · · Score: 1

      "The same will eventually be used in space ships when they become of the acceptable inner size. " - Even if you build partitions into the ship, are you going to install an independently functioning life support system in all of them? What about redundancy in the engines and navigation? Like I said above, we don't know how to build fault-tolerant space systems, and what you're proposing doesn't even come close to addressing it. And you're completely overlooking the point that it's economically (and therefore militarily) infeasible to put up large, fragile warships when tiny, expendable unmanned drones could do the same job at a small fraction of the cost.

      "Sure drones will be widely used but the other side will stop those drones using one drones. " - On the contrary, I think we can expect to see space used heavily in a-symmetric warfare -- advanced, industrial nations using spacial superiority to conduct wars against in impoverished nations that have little space capability. (See also: the wars in Iraq and Afghanistan) Such nations will, by necessity, use largely ground based weapons to defeat space-based weapons.

      --


      To make laws that man cannot, and will not obey, serves to bring all law into contempt.
      --E.C. Stanton
    7. Re:My take by Anonymous Coward · · Score: 0

      You are about 5 years behind the curve. A larger capacity will be needed for a larger target. Satellites are easy targets. They can (and will) be hit by any of the large powers that are involved in any war against each other. This is all already planned.

      The later position, where people are needed is where the Space War becomes decoupled (partially) from conflict on Earth.

      For (A), you would of course have multiply redundant systems. All large war craft have them. So did the old sailing ships. 3 masts, multiple independent cannons, and so forth. Submarines need redundancy too. Spacecraft will be the same way. There will probably be redundancy built into the power systems and cooling systems too. the idea is that it will take several hits to knock out your capability to respond. Cross connection of systems in different areas will allow the crew to survive even if the ship is mostly out of commission. Of course, the enemy will have many of the same capabilities. building a fault tolerant system has been done many times. That's why so few airliners crash. That's why so many people can take electric power for granted. The systems that we use for communication (cell phones, internet, etc.) and electric power are massively redundant. It's not really hard, just expensive. Satellites and current spacecraft don't have this level of redundancy because of cost reasons, not because of any technical impossibility. As costs go down, redundant systems will become the norm. The solution of (A) is also the solution to (B). It's standard Engineering Practice.

      As for space debris in low earth orbit, (or for that matter in higher orbits), then there would be a reason to clean up the orbits. We know where the objects are right now, We have ways to remove some. A simple cloud of gas released at altitude, and allowed to fall back to Earth by simply not moving relative to the planet when released would eliminate quite a lot of debris. We don't do such things right now because it's really quite congested up there, and we might accidentally take down a working satellite along with the target debris. In war, as long as the satellite isn't ours, there won't be any reason to worry about the collateral damage. Space can be cleaned up. after the battles are over.

      Later space war will be based around the protection of resources, just as it always has been. Those resources will give us much more material to work with than we presently have, so the craft that can be made can be larger and better protected. ISS is so expensive because all of the materials to build it had to be launched from the Earth. Built from native materials, it would be several orders of magnitude less expensive.

      Don't limit yourself to thinking that we will always be limited to rowboats. Any battle between a rowboat and an Aircraft Carrier Group will not go well for the rower. But, the Carrier Group is close to going obsolete itself. Something else will take it's place as the Ultimate Weapon of Diplomacy.

      If I were asked to design a space going warship, I wouldn't worry about streamlining the thing. I would have up front, a large impact shield. (say, around 3 Meters of some impact absorbing material, with a strong steel backing, followed by the storage and crew quarters, then the fuel/propellant, then the engines last. The periphery would have the missiles, rail guns, lasers, plasma guns and so forth. Sensors would also be located on the periphery of the impact shield. Only put some out there where they are vulnerable at any one time. Rotate the ship to allow for artificial gravity for the crew. Perhaps pods that could be extended from the main ship, and pulled back in behind the shield when in harms way. This would allow for a power supply that could apply a small acceleration to the War Ship. That acceleration will build up over time. Even a spinning body can be turned if you just remember the Right Hand Rule. Computers are good at that sort of thing. Large ships will of course maneuver slowly. Smaller 'pods' will maneuver quickly, relative

  52. Junk vs Junk by Lije+Baley · · Score: 1

    Debris will be both a weapon and a shield, and combat will devolve into a very tedious, counter-productive affair.

    --
    Strange things are afoot at the Circle-K.
  53. It would be pretty boring. by neiras · · Score: 4, Interesting

    Silence. Occasionally a small flash off in the distance as a projectile smashes into its target. No need for explosives, just high relative velocity and a high mass projectile. Actually, this is probably what a planetary defense network would look like - thousands of massive projectiles in different orbits, with some means of nudging each one to meet an incoming ship approaching from any direction.

    No space fleet would ever fly in close formation. You'd probably have 100km spacing between vessels. Evasive action would be a matter of nudging your heading by a tenth of a degree, thus missing pursuers by hundreds of kilometres. Whoever can detect threats first wins, period - and evasion, not confrontation, probably makes the most sense.

    Actually, fleets probably don't make sense - easier to see a cluster of ships travelling together than to see ten ships all on wildly different orbits, all arriving at a specific attack point within minutes of each other. Worse, once you deploy your ships you probably won't have enough fuel to react effectively to a change in the tactical situation. Your plan is locked in at launch. God help you if your enemy's intelligence gathering is good.

    Human crew would be nearly useless, unless there were resources to be captured from the enemy which required EVA. Shock troops only, no return trip.

    All the pew-pew-pew zoomy shit we see in movies with Cylons banking like fighter jets is just not workable. And honestly, the more I think about it, the less defensible a planet seems to be without massive improvement in detection tech and energy weapons. Even fleet warfare is unlikely; two fleets could easily miss each other and pass in the night.

    I think the only space warfare we're likely to ever see is between two enemies sharing a planet. Whoever gets the upper hand in orbit wins.

    1. Re:It would be pretty boring. by Anonymous Coward · · Score: 0

      The nearest we have is sea-warfare.

      You have to bring the enemy to battle, to destroy them. Convoys have precisely this purpose.

      A 100km is close in space terms.

    2. Re:It would be pretty boring. by jamesh · · Score: 1

      No need for explosives, just high relative velocity and a high mass projectile.

      This pretty much eliminates the possibility of a 'chase'. If you want to go faster then throw some mass behind you, which could do serious damage to whoever is trying to follow you.

    3. Re:It would be pretty boring. by powerlord · · Score: 1

      The nearest we have is sea-warfare.

      You have to bring the enemy to battle, to destroy them. Convoys have precisely this purpose.

      A 100km is close in space terms.

      This.

      The two main ways to look at space warfare are basically "Air Warfare in Space" or "Naval Warfare in Space". I think most people agree that the Naval Warfare model is more likely given current technology levels.

      Two fleets would need to find each other, engage each other, and ports of call (Planets/Asteroids/Space Stations) would be good targets.

      Yeah, weaponry will be a bit better than cannon, but considering we keep mentioning mass-drivers and planetary bombardment ... Cannon seem like a good analogy. :)

      --
      This space for rent. All reasonable inquiries will be entertained at proprietors discretion.
  54. Battle Space by Anonymous Coward · · Score: 0

    http://en.wikipedia.org/wiki/BattleSpace

  55. Mass Effect by theVP · · Score: 5, Informative

    I think they have it right in Mass Effect. It's going to be really really awful and boring. Gunners are going to be mathematicians, and you can turn into some sort of butcher simply by missing.


    Gunnery Chief: [as the character enters the Citadel] This, recruits, is a 20-kilo ferris slug, feel the weight. Every five seconds, the main gun of an everest class dreadnought accelerates one to 1.3% of light-speed. It impacts with the force of a 38-kiloton bomb. That is three times the yield of the city-buster dropped on Hiroshima back on Earth. That means- Sir Issac Newton is the deadliest son-of-a-bitch in space. Now! Serviceman Burnside! What is Newton's first law?

    Serviceman Burnside: Sir! An object in motion stays in motion, sir!

    Gunnery Chief: No credit for partial answers, maggot!

    Serviceman Burnside: Sir! Unless acted on by an outside force, sir!

    Gunnery Chief: Damn straight! I dare to assume you ignorant jackasses know that space is empty. Once you fire this hunk of metal, it keeps going til it hits something. That can be a ship. Or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you are ruining someones day, somewhere and sometime. That is why you check your targets. That is why you wait for the computer to give you a damn firing solution. That is why, Serviceman Chung, we do not "eyeball it". This is a weapon of mass destruction. You are not a cowboy shooting from the hip!

    Serviceman Chung: Sir, yes sir!

    --
    "No one is more miserable than the person who wills everything and can do nothing." -Emperor Claudius 10 BC - AD 54
    1. Re:Mass Effect by ildon · · Score: 2

      That was my first thought, too. Reading the codex, someone put a LOT of thought into what real space combat with real physics might be like.

    2. Re:Mass Effect by TubeSteak · · Score: 1

      We'd never get to the point where space combat exists.
      Before that ever happens, the earth would be shrouded in debris from us blowing up each other's satellites.
      End results: no one can safely launch anything into orbit.

      --
      [Fuck Beta]
      o0t!
    3. Re:Mass Effect by Anonymous Coward · · Score: 0

      Except that, really given the density of matter in space the odds of hitting anything with a star sized projectile as it travels through a galaxy are rather like dropping a golf-ball through a 747 and hitting say: an egg sandwich.

      A tiny little bullet is vixenishly unlikely yo actually hit anything it wasn't aimed at.

    4. Re:Mass Effect by ildon · · Score: 1

      Didn't you go on that ride they used to have at Disney? Passenger space craft will have lasers to blow up the space debris.

    5. Re:Mass Effect by EnempE · · Score: 1

      Isn't space full of gravitational forces? I assume that the projectile would have a good probability of ending up in an asteroid belt somewhere.

      I agree that it would be a lot more boring and technical than it is in the movies. Look at the actual role of bombers in the second world war. Dropping a projectile then relied on the bomber doing some maths to calibrate the equipment, and understanding that maths well enough to make adjustments on the fly. They did miss a lot though.

      Anyone considered that hacking an enemy craft and causing an accident would be more common place? You wouldn't want to cause any stock market fluctuations by starting a hot war when you can retain economic stability and still achieve your objectives.

    6. Re:Mass Effect by Nyrath+the+nearly+wi · · Score: 2

      Yes, and the fact that the clip has "Serviceman Burnside" and "Serviceman Chung" might lead one to believe that the writer of the codex had studied Ken Burnside's Attack Vector: Tactical hard-science spacecraft combat boardgame and Winchell Chung's Atomic Rockets website.

    7. Re:Mass Effect by Anonymous Coward · · Score: 0

      And then they threw it out the window and gave us the ME2 simplified ground-based crapfest...

    8. Re:Mass Effect by Anonymous Coward · · Score: 0

      Just a note, "Serviceman Chung" is a reference to this guy, and his site on space physics: http://www.projectrho.com/

  56. I think Space Mutiny had it correct by ddd0004 · · Score: 1

    It will surely look like this
    http://www.youtube.com/watch?v=6GW3K5_w0-A

  57. Atomic Rocket by func · · Score: 2

    This excellent collection of pages on Space Warfare on the Atomic Rocket website goes into exhaustive detail on just that topic:

    http://www.projectrho.com/rocket/spacewarintro.php

    I especially love their section on thermodynamics - it's right on. :)

    1. Re:Atomic Rocket by Anonymous Coward · · Score: 0

      This excellent collection of pages on Space Warfare on the Atomic Rocket website goes into exhaustive detail on just that topic:

      http://www.projectrho.com/rocket/spacewarintro.php

      I especially love their section on thermodynamics - it's right on. :)

      this site rocks/

      thanks for posting it

  58. sci fi references by grep_rocks · · Score: 1

    In the short term there will be no capital ships or space fighters, not with chemical rockets, in the distant future I would recommend reading Larry Niven, specifically Protector or some of his known space books which depict space battles at relativistic speeds, in Footfall he depicts how an Orion type nuclear putt-putt rocket is used in combat near earth. Charles Stross in Singularity Sky also discusses space battles and tactics while trying to stick with (mostly) known physics - none of these more realistic novels depict what you would call capital ships, fighters and cruisers - space is not a 3D version of naval warfare, with projectiles moving at even a small fraction of the speed of light, you get hit you are dead, much of the battle is about not being seen until it is too late.

  59. FFS by Anonymous Coward · · Score: 0

    Go Watch Battlestar Galactica.
    The series that aired in 2006 -2008

    1. Re:FFS by gatkinso · · Score: 1

      You mean the one where they somehow had gravity on the ship and never ran out of booze?

      --
      I am very small, utmostly microscopic.
  60. Attack Pattern Theta Omega 4 Engage by Anonymous Coward · · Score: 0

    Everything I know about space combat I learnt from Trek :)

  61. More like submarines than battleships or fighters by gman003 · · Score: 1

    In fiction, you see a few different ideas of what space combat is like, almost always based on some sort of modern-day metaphor. You'll see stuff that's all carriers and small one-man fighters (Star Wars), stuff that's just huge capital ships (Star Trek).

    Real-life, I think it would be more like submarine combat, based on a few simple facts:

    1) Spaceships are *fragile*. A sub can be taken out by one depth charge a few hundred meters away. You wouldn't even need to be that close to take out the ISS - a fragment the size of a baseball could probably damage it enough to evacuate it. And it would be torpedo-type weaponry - you can't adjust your aim fast enough to trust in a direct hit, so you'd use warheads of some sort set to explode when close enough. Those would either be old-school explosives with fragmentation casing, or nuclear.

    2) Space battle would be a long-range, stealth battle. You're dealing, literally, with astronomical distances. Even lasers would take seconds to hours to hit. It's not too hard to hide in space, if you're small and aren't actively making EM noise. I can imagine it would involve a lot of drifting with engines off, a lot of radio silence, and definitely a lot of sneak attacks and ambushes.

  62. Screw ships, go RKVs by Eudial · · Score: 4, Interesting

    Remove ships out of the equation entirely. I don't quite see what they could contribute. They're slow and inefficient, and impossible to give orders in time over large distances.

    Relativistic kill vehicles are far more menacing weapons than any ship. It's a reinvention of one of mankind's earliest weapons: The humble rock, thrown at the enemy. But this rock is accelerated very near the speed of light, making it nearly impossible to detect, and completely impossible to stop (if you blow one up, it just increases the destruction). Even a fairly modest RKV can carry the destructive force of a hundreds of atomic bombs and absolutely obliterate it's target.

    --
    GAAH! MY PRINTER IS ON FIRE!!! PUT IT OUT! PUT IT OUT!
    1. Re:Screw ships, go RKVs by Nethead · · Score: 1

      Remove ships out of the equation entirely. I don't quite see what they could contribute.

      But what about the plot devices?

      --
      -- I have a private email server in my basement.
    2. Re:Screw ships, go RKVs by Anonymous Coward · · Score: 0

      but VERY hard to aim.

    3. Re:Screw ships, go RKVs by ceoyoyo · · Score: 1

      Now you just need the massive amounts of energy and he unobtamium to store it and gift it to your rock. And hope the other guy doesn't see all this happening and take a step to the left.

    4. Re:Screw ships, go RKVs by Dracophile · · Score: 1

      Too damn right. If you didn't see its launch, then you're fucked. It's never where it was when you saw it.

      --
      Athy, athier, athiest.
    5. Re:Screw ships, go RKVs by Intrepid+imaginaut · · Score: 1

      At those kinds of speeds even the interstellar medium is going to abrade and deflect your missile though. Once it gets anywhere near a solar system it will be like a meteorite hitting atmosphere. Lower speeds like 1 or 2 percent would be quite dangerous but those could be seen coming easily enough.

    6. Re:Screw ships, go RKVs by Carnildo · · Score: 1

      RKVs only work if you want to destroy your target. If you want to capture it, you need boots on the ground, and that means ships.

      --
      "They redundantly repeated themselves over and over again incessantly without end ad infinitum" -- ibid.
  63. Re:First! by Anonymous Coward · · Score: 0

    guess again

  64. realistic space combat games by Anonymous Coward · · Score: 0

    I seem to recall that there was an effort a number of years ago to develop a more or less realistic multiplayer space combat simulator, but I cannot seem to locate it now. What I do recall from reading the site was that actual combat would be inhumanly fast due to stuff moving at relativistic velocities, and would have looooong approach periods to to the size of a star system.

    Of course, if you factor in attacks on planetary installations, it becomes rather one-sided, as illustrated by a fair amount of SF treatment of the idea; just mount engines on a bunch of big rocks, accelerate them inward from the outer edges of the star system, and shatter them into fragments a convenient distance from the planet. Nearly impossible to stop, and extremely damaging.

    1. Re:realistic space combat games by Anonymous Coward · · Score: 0

      The only 2 games I remember are :

      Beyond the Red Line, which was a battlestar galactica type mod.
      Babylon 5 I've found her. This one is a space combat game that relies heavily on newtonian physics and the inertia principle during space combat.

  65. Terrorism writ large by m50d · · Score: 1
    In space, everyone knows where everyone is (scattering sensors around is cheap, and the second law of thermodynamics means there's no way to hide unless you know which direction your enemy's looking from), and everyone can kill everyone else quite easily. Just the velocities involved mean an interstellar ship is a missile (and probably one that can devastate planetary ecosystems); there is no defense other than to strike first, no way to meaningfully armour a ship (even counter-missiles are impractical due to conservation of momentum), and honestly, when it comes to war, no reason to even have ships at all - just launch missiles directly from whatever your bases are.

    If we survive long enough as a race to have interstellar travel, I predict people living on artificial habitats inside gas giants and/or stars, the location/flight-plan of each a closely guarded secret (and probably communicating/trading only by meeting on neutral ground), since that seems like the only place you could hide. If you're out in the open, any idiot with a grudge can wipe out your civilization.

    --
    I am trolling
  66. shrapnel, missiles, kinetic mass by PetiePooo · · Score: 1

    Given the inherently high velocities of spacecraft, be it in orbit or between bodies, it doesn't take much mass to damage things. Coat a weight in radar-absorbing foam and get it in the way of whatever you're trying to damage. Call it a space-mine. Explode something in their path and call it ack-sierra.

    Beyond that, due to weight/energy densities, conservation of momentum will be important, but spacecraft wouldn't have the ability aircraft have to deflect air via their wings to change the direction of their momentum. There's nothing in space to push against... I don't anticipate it would look like a dogfight at all because of this.

    It would probably look most like naval warfare, where the combatants lob missiles and minimally guided shells at each other. Missiles wouldn't change the attacker's momentum, whereas the recoil from shells would.

  67. Manned Space battles not very likely by Anonymous Coward · · Score: 0

    Manned space battles are not very likely as it costs too much and technologically we are not very close to it being very possible. Throwing projectiles or using a laser and hitting satellites is most likely the most it would be.

    Break up enough stuff in low orbit (destroying satellites) and you would have a hard time putting anything else up without it being hit and destroyed by the pieces flying around.

    The idea of going between the planets to fight is laughable right now. We have never even been much further than the Moon in a manned vehicle and we can't really even do that now.

  68. Drone Warfare by dcollins · · Score: 1

    You can get a sneak peak today by looking at U.S. drone warfare operations in the skies around the world. Days of remote monitoring from a bunker and then kablamo from nowhere. Coming soon to U.S. skies as well (legislation signed last week).

    --
    We know where leadership by an anti-intellectual "strongman" who scapegoats minorities and likes boisterous rallies goes
    1. Re:Drone Warfare by starcraftsicko · · Score: 1

      To make it work over interplanetary distances, you'd have to let the drones decide the targets. What could possibly go wrong with that?

  69. Random thoughts by MrLizard · · Score: 2

    I believe it will end up being a lot like that described in Niven's "Protector"... you launch your weapons, and, five years later, you look to see if they hit.

    That's for interstellar combat. For orbital combat... a lot would depend on the goal. Are you trying to knock out the enemy's satellites? Drop bombs on his population centers? Stop his transport ships from leaving Earth and getting to their destinations?

    The easy answer is "drones, drones, and more drones", but this assumes ECCM will equal ECM well enough to make it at least a tossup that you'll get through the other guy's defenses. I'd also make a guess that we'll never get as much damage potential out of a beam weapon as we will out of an explosive, and the simpler the technology, the less things can go wrong. I'm seeing, basically, drones that get as far as they can from the enemy, analyze their motions, and then launch direct-fire weapons based on prediction algorithms as to where the enemy will be when the projectiles get there. I'd also speculate that anything launched, including the drones, would be absolutely blind to any kind of orders to go home, change targets, respond to IFF, etc, because the chances of being fed false data are too great. This would lead, of course, to the launch of basically uncontrolled weapons armed with considerable destructive power, so, if they were hacked pre-launch... oops...

    This, in turn, might lead to remote control, where the drones have no "brains" but are piloted by humans. Of course, this opens the same problem -- if the drones are controlled in any way by an outside signal, an enemy can and will find a way to hijack that signal. So, back to self-guided vehicles with no way to turn them off or shut them down. (And even this leads to problems... if there's a "mission complete, go home" algorithm, you run the risk of someone figuring out what the drone needs to "see" to conclude "mission complete" and finding a way to fake it. So, logically, you just have the drone explode when it's done.

    If the general area being fought over is well defined, you might have some kind of minefield, using virtually-inert devices that rely on passive sensors to come to life and go 'boom' when something is near, but I've read a lot of people arguing that nothing is inert enough to not be trivially detected far off.

    (Of course, I'm not sure there's anything to fight over in space other than to knock out the other guy's satellites, and there won't be anything else up there for a long, long time... so long that making predictions about the kind of tech used is probably impossible. As for the satellites, it's probably much easier to just fire some ground-based or plane-based missiles at them than to try for any kind of "space war".)

  70. You probably wouldn't see much. by misosoup7 · · Score: 1

    Projectile weaponry would be fairly worthless given laser based counter measures that can shot down your projectiles long before they will reach their target. The only way to get them to hit is to overwhelm the defense system, which means huge amounts of resources wasted in trying to hit a target.

    So the vast majority of weapon systems will be energy based. Lasers will not be visible until it hits you since it's moving at the speed of light. So in that respect you probably would not even see it until it's hit you. In fact you'll probably wouldn't even know that you are being fired at until something's hit you. Unless your opponents are using some sort of energy-emitting ("active") method of tracking your position, they would fire at you and you'd only know after you've been hit since classical information cannot travel faster than light or the laser itself.

    If you have laser energy dissipating shields, then you'd see a blinding light splash across your shield when you get hit.

    Now let's consider if you were in a space suit and in space and you're spectating. It's also likely that you wouldn't see much either. Lasers are monochromatic and does not scatter unless interrupted by particles. If vast stretches space, there is actually nothing there. In those regions, you wouldn't see the laser going between the ships. You will see when the laser impacts and does damage or if it is dissipated, but the whole Star Wars thing with the lasers that you can see? You wouldn't see them. If you are in a dust/gas field, then yes, the lasers will get deflected off the particles and you should see the laser. Of course laser based weapons will be less effective as it is hitting a whole bunch of stuff before it finds its way to the target. (You can think of a laser pointer at home. If you have a very clean room, no dust, then the laser point will point at whatever it is you're pointing at and you shouldn't see the beam itself. If you have dust in the room then the laser will illuminate the dust and you can make out the beam).

    Continuing down the line of though, you probably wouldn't hear much if you didn't have a radio if you were in a space suit in space. Space is pretty much a vacuum and vacuums don't conduct sound unfortunately. Waves require matter to propagate (light is a special case) and sound is a wave. So without a radio, you get to watch the war in absolute silence (go watch 2001: A Space Odyssey, but ignore the orchestral accompaniment). But if you had a radio or was in a space ship, you'd hear explosions from the ship getting pummeled by laser batteries. But of course, if you were unlucky enough to get sucked out of the whole that was punched into your space ship, you'd very quickly be unable to hear anything before you died from suffocation or got incinerated by a second valley from the lasers.

    1. Re:You probably wouldn't see much. by misosoup7 · · Score: 1

      As far as what kind of ships, my opinion is without very effective anti-laser defensive equipment, capital ships are just bad ideas. They make easy targets by fast small and agile fighters which can still punch holes in your defenses very quickly. A swarm of the smaller ships can quickly overwhelm the capital ship since the capital ship is easily detected where as the smaller ships have greater stealth characteristics and can approach virtually undetected until it's too late. Remember what I was saying earlier, if your opponents wouldn't even know the laser is coming until it hits them, then you have huge huge advantages of going small and stealth and building a larger number as opposed to capital ships.

      If there was great anti-laser shielding equipment, then I'd imagine capital ships should still be useful as they can provide more fire power, carry more supplies, and travel further.

      As far as if there would be wars or battles. I'd say that a space war will be drawn out over many many years or even generations as it takes a very long amount of time to travel the interstellar distances even if we are able to produce FTL travel techniques (which is unlikely in any event). Which means it's unlikely to have an all out space war. It'll be more likely to just be random skirmishes within a single stellar system.

  71. Depends on what you mean by space combat.... by Fallen+Kell · · Score: 1

    Are we talking USA vs China in space? Or are we talking planet Earth vs ET?

    In the fist scenario, (i.e. country vs country all on planet Earth), space combat would simply be small unmanned drones and/or other small craft with maybe 1-5 crew members. There are simply no reasons as of now for anything more than that until we start talking fighting that spans the solar system, and even then, autonomous/semi-autonomous drones would probably be the choice at greater distances.

    As for Earth vs ET, it would depend on propulsion technology requirements. If simply defense, same as for country to country, as distances involved would still mean they are the best solution. Things change if we are talking an offensive campaign on unknow types of targets at some general location (i.e. we narrowed down what solar system the attacks are comming from). Obviously drone scouts would help, but for the actual attack, you would probably need some type of human presence to lead the attack as history has proven time and time again that plans do not withstand contact with the enemy.

    --
    We were all warned a long time ago that MS products sucked, remember the Magic 8 Ball said, "Outlook not so good"
  72. Italian politicians by aglider · · Score: 1

    all the way along!

    --
    Sent as ripples into the electromagnetic field. No single photon has been harmed in the process.
  73. Minovsky Particles by medv4380 · · Score: 1

    Gundam already takes your point into account. M Particles effectively block the long range anonymous forms of attack since it blocks all forms of electromagnetic communication, including laser targeting and gps. M Particles are the deus ex machina of close ranged Gundams.

    1. Re:Minovsky Particles by vlm · · Score: 1

      Gundam already takes your point into account. M Particles effectively block the long range anonymous forms of attack since it blocks all forms of electromagnetic communication, including laser targeting and gps. M Particles are the deus ex machina of close ranged Gundams.

      Mylarized Chaff from off the shelf aircraft would seem to make an excellent "M Particle" without any deus ex machina. Hit one particle in a cloud and it vaporizes into a huge cloud you can't see thru and lasers can't blast thru.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  74. lots of hidden Bases by phrostie · · Score: 1

    The attack vehicles would be unmanned drones, small single purpose.
    Reconnaissance the same, small single purpose.

    but you'd have control centers hidden through out various moons and asteroids to keep communications time/distance to a minimum.
    these as well as any defense systems would be manned.

  75. Borg cube by PetiePooo · · Score: 1

    So what you're saying is, Star Trek had it right once again!

  76. Not possible! by raehl · · Score: 2, Funny

    Laser Beams.

    Won't work; the sharks can't survive in space.

  77. I saw what you did there. by macraig · · Score: 1

    Would there be equivalents of cruisers, fighters and bombers, or would it be a mix of them all?

    I can't decide if that's a pleonasm or a tautology, but don't do either, okay?

  78. Nuclear weapons by Anonymous Coward · · Score: 0

    I see nuclear weapons and massive EMP bursts. Perhaps multiple sub-munitions in the 1-2kt range, think a cluster bomb/missile with 10-20 individual small warheads spreading to create a nuclear 'wall' immediately after detonation. The EMP dusts the electronics, then the crew either dies of rad poisoning or suffocates.

  79. Space is big by Anonymous Coward · · Score: 0

    Not that much to be envious over. Other than the sweet planet earth.... if want some rock just go get your own.

  80. Read "Luna is a Harsh Mistress" by Heinlein by Anonymous Coward · · Score: 0

    Ideas from the book:
    - "rock throwing" (kinetic projectiles)
    - nuke missiles
    - highly collimated laser beams (only usable at short range)

    But, as others already mentioned, space is a vast, vast place. 99% of the time, it would be slow and boring. Most time would be spent on actually getting to the target. Then - launch missiles and in a few seconds - everything is over (one way or another).

  81. Non-starter by petes_PoV · · Score: 1

    For orbital combat...

    There would be no orbital combat, as whoever's craft came into sight of the opposition's ground-based lasers would get fried - instantly.

    Similarly, there would be no meaningful conflict between a planet-based civilisation and a space-based one. The "spacies" would simply drop rocks on the planet (superiority is being at the top of the gravity well), a la Footfall. The only scenarios that could give rise to a space "war" would be a war of independence: The Moon or Mars vs. Earth (but ref. Footfall), or inter-factional wars for territory between space-based operations.

    --
    politicians are like babies' nappies: they should both be changed regularly and for the same reasons
    1. Re:Non-starter by MrLizard · · Score: 1

      I'm less certain than you, because this presumes that "enemy" craft would be large enough to be easily detected amidst all the myriad space junk in orbit. I'm going on the assumption "future war" would be mostly small unmanned craft sniping each other, not Star Destroyers lumbering around. Of course, anything big enough to drop rocks would probably also be big enough to detect and fry. (Also, how trivial is it to hit something in orbit with a ground based laser, when said something may be moving very fast, tossing out chaff, or otherwise not just sitting there waiting to get blasted? Given Sufficiently Advanced(tm) technology, you can pack a lot of destructive power in something the size of a grapefruit, and if it's detected less than a second from its target, accompanied by a thousand other grapefruits, your ability to lock on, predict its motion, and fire is severely limited.)

      I mean, let's face it -- no one's produced a fully reliable laser-based defense against good ol' missiles. I'm not sanguine you can build a ground-based laser defense against the kind of tiny semi-independent craft we'll be able to use in orbit.

      Ultimately, I see orbital war as constant clouds of millions of small, highly mobile, vehicles constantly trying to decide which other vehicles are "the enemy" and blow them up, with evolving algorithms that try to trump the other guy's prediction/evasion/detection schemes. Given sufficiently advanced (tm) technology, the vehicles could easily modify their own hardware, cannibalizing enemy "corpses" or each others for raw materials.

    2. Re:Non-starter by KahabutDieDrake · · Score: 1

      Oh good, invent bezerkers. This is NOT the kind of thinking we need.

  82. Nuclear space combat? by JCPM · · Score: 0

    In a combat Obama vs Ahmadinejad, they will be the winners, the losers will be us, they did kill us.

    The next could be a combat of Humans vs Aliens.

    The next could be a combat of Humans-Aliens-Androids vs Viriirobots/Virurobots.

    JCPM: U.S. & Israel seem to be the only countries on the world where the development of weapons & wars are their 1st priority.

  83. Beams and missiles by steveha · · Score: 2

    We don't have any kind of "shields" technology, so a laser is a pretty useful weapon in space. You can aim it from a long distance, you can overheat just one spot on a target, and you can reuse the laser once you get it into space. So there is likely a place for lasers in near-future space combat.

    And with the kinds of speeds that things travel in space, even small masses can wreak major harm if the vectors are opposed. If you can fling a cloud of ball bearings where a satellite's orbit will take it into collision, you can likely destroy the satellite pretty cheaply. So I'm definitely not ruling out some sort of kinetic weapons.

    But the space weapons that are sufficiently non-classified that I have been able to read about them are all missiles: http://en.wikipedia.org/wiki/Anti-satellite_weapon

    I think for the near future, any space combat will be anti-satellite operations. For example, if the USA were fighting a land war, and the enemy could take out the GPS satellites, that would put a crimp in the high-tech armed forces of the USA. (A crimp only. As far as I know, they still train in the use of map and compass, and not all guided weapons are GPS-guided.) So I pretty much figure the first actual space combat might be someone knocking out GPS satellites. (I don't think Iran can do it, but they might try to pay someone else to do it.)

    steveha

    --
    lf(1): it's like ls(1) but sorts filenames by extension, tersely
    1. Re:Beams and missiles by Anonymous Coward · · Score: 0

      We don't have any kind of "shields" technology, so a laser is a pretty useful weapon in space

      The Inverse Square Law would beg to differ.

      Collimating a laser so that it's actually focussed on a small point at the distance of your target is not an easy thing to do. If you lose just a tiny bit of focus, then all you do is slightly warm the target while shining a big bright light that says "Here I am!"

      Whereas throwing ball bearings at high velocities makes things so much more fun. Make them ceramic, black, and faceted so they're hard to see optically or by radar. Even if your enemy *does* spot them in time, they'll just burn fuel dodging them, and if you happened to launch a cloud of them, it'll be hard to dodge them *all*. Keep that up long enough, and the first ship to run out of thrust is dead.

      Missiles might be good, too. A kinetic kill vehicle. To deal with defensive systems, make a portion of the kill vehicle mass out of the afore-mentioned ceramic chunks. A "kill" of the kill vehicle just means you turned a single target into several hundred, each of which can potentially destroy a ship.

      One thing's for sure - such warfare in planetary orbit would sure make that planet difficult to access for quite a while, due to the clouds of high-velocity debris...

    2. Re:Beams and missiles by Anonymous Coward · · Score: 0

      As for lasers, beware targets with mirrors.

  84. Movement is where to look... by geogob · · Score: 4, Interesting

    Moving around in space is nothing like flying around in the air or scratching around on the surface of the Earth. And in combat, regardless of its form, it's all about movement and positioning. The key always lays there from the most basic form of hand to hand combat to the most advanced stealth jet fighter combat.

    If you are serious about getting an Idea about how a space battle would look like, I suggest the following. Get the Orbiter space flight simulator and try it out a little. Figure how you move around in space. Search around a little and do the tutorials.

    My guess is that, like most people, you'll get bored after the first 2 days waiting to reach a target... you'll quickly (or rather very slowly and longingly) notice that space travel is slow and complex. When most people think of in-flight combat, they think about dogfight, with quick instant maneuvers to evade immediate danger or quickly engage a target. Space, its another business. Orbits are planned months ahead, years or even decades in advance for some satellite. Even on very short term missions, you do small precise maneuvers that will have noticeable impacts hours or days later.

    The most accurate movie depiction of space combat is probably 2001: A Space Odyssey... sort of. There's just no combat, but it wouldn't feel any different.

    1. Re:Movement is where to look... by amaupin · · Score: 1

      The most accurate movie depiction of space combat is probably 2001: A Space Odyssey... sort of. There's just no combat, but it wouldn't feel any different.

      Couldn't agree more. Meet Joe Black also got it right.

    2. Re:Movement is where to look... by QuantumPion · · Score: 1

      My guess is space combat would be more akin to submarine warfare - ships heavily shielded and shaped to deflect as much radar energy as possible, as well as coated to reduce heat signature. Quietly floating around using passive sensors trying to locate enemy ship, and then launching either a guided missile or a gun/mass driver type projectile. And like the U-boats in WW2 going up against the allies with ASDIC, depth charges, hedgehogs, etc, space combat would be extremely hazardous. There's no way to realistically armor a ship to project against radiation from small nuclear weapons detonated at close range, or mass drivers at screaming relative velocities. Small fighter type craft buzzing around like WW2 airplanes would be suicidal, since they could be easily instantly destroyed by computer controlled guns or lasers at long range.

    3. Re:Movement is where to look... by Anonymous Coward · · Score: 0

      Lets assume you had two opposing fleets from two different planets coming at each other and they have a strong enough defense to prevent long range attacks.
      From far away could you plot the course of a kinetic impactor and fire counter shot that would disintegrate the shot. That dust might also make a good shield against lasers beams and further kinetic shots. So you have to get up close to fight your enemy.

      In this case your going to get one pass to fight it out. Your fleet probably wont have the fuel/energy to pursue the enemy without killing your velocity.
      Thus preventing you from getting to your objective.

      So one pass to blow up your enemy up close where there isn't enough time to defend completely against your opponent.

    4. Re:Movement is where to look... by reve_etrange · · Score: 1

      Moving around in space is nothing like flying around in the air

      Exactly. Imagine a tight inside loop being performed by a maneuverable aircraft. The drag experienced as the nose pitches up causes the "forward" velocity to fall, so the plane can follow an approximately circular path. A spacecraft on the other hand wouldn't lose forward velocity until it was actually pointing backwards, so its loop would follow an elongated arc instead of a circle. Other maneuvers break down in similar ways, once you imagine them taking place in a vacuum.

      These thought experiments already assume that the spacecraft has a perfect attitude control system, unlimited maneuvering fuel and is outside a gravity well, all highly unlikely in a "real solar system" situation.

      --
      .: Semper Absurda :.
    5. Re:Movement is where to look... by tamnir · · Score: 1

      Please mod parent up.

      Orbiter is awesome for really understanding orbital dynamics. It is one thing to know about the theory, but it is something else entirely to actually put it in practice and feel how complex it can be. Once when flying the Shuttle and trying to rendez-vous with the Space Station, I was falling a bit behind, so I instinctively pointed the ship towards the station and fired up the thrusters a bit in order to catch up. That should get me back closer to the station, right? Well no: given our direction of travel, that burst of thrusters just raised my orbit, hence making me slower, so I fell behind even more and ended up totally screwing up that rendez-vous.

      So in space, you don't just go eyeballing your flight like you would in VFR on Earth. You really do need a flight computer, and a lot of planning ahead of time. Try it out, it really is eye opening. Then, once you really get orbital dynamics, you can start imagining what space combat would be like (spoiler: as many have already said: slow and boring. Sorry, no Star Wars style space dogfight...).

      --
      I code, therefore I am.
    6. Re:Movement is where to look... by Anonymous Coward · · Score: 0


      The most accurate movie depiction of space combat is probably 2001: A Space Odyssey... sort of. There's just no combat, but it wouldn't feel any different.

      Couldn't agree more. Meet Joe Black also got it right.

      So did Mighty Joe Young,

  85. REAL combat?? by axlr8or · · Score: 1

    You would never see it. If you were involved in a fight the speeds involved would be so great the only reasonable method of tracking a fight would be virtual. Unless it was a boarding. In that case, frankly something like outlaw star then at close ranges, with grapplers and assault rams, capable of penetrating hulls. It would be of little value to use lasers within visible spectrum. Missiles would be so fast you wouldn't see them either. Exo atmospheric fighters would find no purposes in wings or other lifting devices, unless being used as radiant heat sinks. I'm pretty sure battles in space will be robotic. Little point in wasting energy on life support, and the resources in making cabins. Yeah, if you were human and had the misfortune of being there, I would say you wouldn't have seen it coming. Targeting probably won't use optics, preferring something capable of covering long, and medium range sensing. Something probably left up to SAR. Sorry to be disappointing you. I'd a imagine, there would be an abstraction interface, completely customizable. Where a computer would assign some representative graphic to everything involved in the battle. I think I would assign HELLO KITTY to represent missiles. :)Of course one would beg the question, why would you be looking forward to it? I suppose, in the future, there will still be people duped into believing that anarchists idealize an impractical theology. Instead choosing the more believable ideologies of narcissism. It's much more efficient to just kill your enemies to take their finite resources for yourself than working together to find better alternatives where everyone gets to be happy.

  86. MAD by Anonymous Coward · · Score: 0

    What makes you think we wont also have Mutually Assured Destruction in space?

  87. Air to Ground by fish_in_the_c · · Score: 1

    Nuclear weapons lanched from the satalite in an attempt to destroy the mission control of various drones in space devistates the earth and ends all armed conflicts for centuries.

    Hopefully space wars don't happen.

    "I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."
    Albert Einstein

    --
    âoeTolerance applies only to persons, but never to truth. Intolerance applies only to truth, but never to persons.
  88. long periods of boredom ... by nonregistered · · Score: 1

    ... punctuated by moments of sheer terror

  89. Jack Campbell novels worth reading by jnmontario · · Score: 3, Interesting

    It's interesting you posted this. Back in the early 90's when my friend and I were in school we both took a pile of astrophysics courses (thank you The Next Generation for making me a space-whore for life). We created all the basics for a space combat game. Down to stats, movement rates etc... all based on 'real physics'. I completely agree with one of the posters above - it was too boring to ever code as such since it involved horrendous wait times, punctuated by sheer madness over the period of a minute or two, then a lot of death. Jack Campbell has written a FABULOUS set of books (the Lost Fleet), with a serious dose of reality (with the exception of FTL travel). Iirc, he's a former Navy Captain or some-such, so the feeling of combat is very real, more importantly, he's spent some time researching relativistics so there's a lot of that in the novels as well. Well worth the read. Space weapons are largely missiles and particle weapons, both of which we have in today's age - so it's only engines/travel that are slightly futuristic. http://en.wikipedia.org/wiki/The_Lost_Fleet

    1. Re:Jack Campbell novels worth reading by Anonymous Coward · · Score: 0

      I am currently reading this series, and I agree he did a pretty good job.. Most authors seem to forget the fact that space is incredibly vast, vast enough that how long light takes to travel is important.

  90. Science Fiction... by Anonymous Coward · · Score: 0

    Check out 'A Deepness in the Sky' by V. Vinge for an authentic experience of a real space battle.

  91. Launch literally handfuls of rocks into space by kawabago · · Score: 1

    Anything in orbit will be pulverized.

  92. Swords come back in vouge by Anonymous Coward · · Score: 0

    I would say that the majority of combat in space would be of the pirates taking hostages variety. Think the coast of Somalia today only in space. Most likely the future will see cruise ships travelling the solar system for the very rich to take extended vacations.Rich toursists equal rich ransoms. There really isn't much habitable real estate to fight over outside Earth itself. The exloitable resources in space such as asteroids and comets are farily common making a war over resources unlikely.

    The defenders would have an incentive not to try to destroy an enemy vessel approaching to board unless they can ensure that the trajectory of the enemy would not result in a collision.

    Both sides will have an incentive not to damage the hull (other than perhaps cutting a temporary airlock out of the side). The defenders would not want to vent the atmosphere and killing the tourists and the pirates need them alive to collect a ransom. Few weapons allow you to kill the enemy without risking a rupture of the hull. The sword is such a weapon.

  93. Play EVE Online by Anonymous Coward · · Score: 0

    ^^

    1. Re:Play EVE Online by gatkinso · · Score: 1

      Yes because ships that can only fly in certain directions (warpables), can run into each other at full speed and incur absolutely no damage at all, and absolutely cannot hide (local) would be reality.

      --
      I am very small, utmostly microscopic.
  94. silent running.. by greywire · · Score: 1

    I think the idea of space battles being something like submarines is pretty close. All the claims that space battles and ships are pointless when you can just lob stuff at the target and its impossible to stop in space I think is short sighted. If we can achieve any kind of reasonably fast space travel and be able to lob objects big enough to harm a planet or fast enough to not be able to be outmaneuvered by a spaceship you're already assuming energy sources beyond anything we know currently, maybe even physics (FTL?) that we don't have yet. Assuming that, then its reasonable to assume we could also use that energy source to create powerful energy shields (magnetic, gravitational, hot plasma, who knows) to deflect dumb projectiles.

    --
    -- Senior Software Engineer, Attorney appearance services, locallawyerapp.com.
  95. Just in case, by fph+il+quozientatore · · Score: 3

    ...remember that the enemy gate is down.

    --
    My first program:

    Hell Segmentation fault

    1. Re:Just in case, by Anonymous Coward · · Score: 0

      Well that took long enough

  96. The Perfect Laser Weapon by NEDHead · · Score: 1

    Will scribe "All your bases are belong to us" on your stinking mirrors.

  97. Lost Fleet by ArkiMage · · Score: 1

    Just read Jack Campbell's Lost Fleet series.

    http://en.wikipedia.org/wiki/Lost_Fleet

    1. Re:Lost Fleet by cyberfringe · · Score: 1

      Apart from the energy sources used, the physics of space battles in planetary systems is very well thought out in these books.

      --
      There's no sense in being precise when you don't even know what you're talking about. -- John von Neumann
  98. Newton and the inertia principle.... by Anonymous Coward · · Score: 0

    In realistic space combat Newton and the inertia principles rules.
    Look at Babylon 5 to get a glimpse at what realistic space combat is like.
    Star Trek, Star Wars and co are jokes compared to B5.

  99. destruction at the SPEED of light, man! by Thud457 · · Score: 1

    Just imagine the damage we could deal to the aliens if we could convert 10% of the to <your least favorite sect> ! They could end up wasting a good portion of their GGDP on useless pursuits and in-fighting. GP may be on to something there....

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  100. Having worked in missile defense for years... by gatkinso · · Score: 1

    ...I can tell you that it will look like a computer screen.

    Some sort of situational awareness display, in my case it usually showed a globe centered on Hawaii (Kauai actually) with various tracks being displayed.

    On the wall you had video feeds. The target launching (when you see it in person it is loud, and out of sight in about 10 seconds. Neat smoke trail. Loud).

    The interceptor launching (about the same).

    A video feed from a telescope watching the impact: black.... Somthing happening very fast (about 1 second) and a flash. Bingo.

    30 minutes later you get the video from the KV point of view. See above. This is slowed down to show the brass. Kind of neat.

    You don't see anything of the engagement: too fast, too far away.

    Oh yeah... cruisers: it was usually the USS Lake Erie, once the USS Shiloh.... IIRC. A few destroyers tracked the missile, but they didn't shoot.

    --
    I am very small, utmostly microscopic.
  101. Unmanned by Arancaytar · · Score: 5, Interesting

    One thing that most of science fiction gets wrong is that spaceships, even small and maneuverable fighters, are not airplanes. They do not contend with air resistance and accordingly do not require a wedge-shaped bow - let alone wings. Spheres or cylinders are more likely for small ships, while larger and slower ships might afford less compact designs that would deal poorly with high acceleration.

    The second is manned flight. Hell, we've mapped much of the Solar system and been in orbit around about half(?) of all planets, without going further than the moon, or in fact leaving Earth orbit for very nearly 40 years. Even on Earth, it becomes increasingly more practical to wage war with remote-controlled drones than manned planes. Add the possibility of AI advancing far enough for autonomous drones, and I don't think an organic individual would be within light-hours of the battle.

    Which brings us to the third part: Soldiers say that battles consist of long periods of waiting followed by brief bursts of excitement. Space battles would consist of months, possibly years, of unmanned travel and intensive computation, followed by seconds of computers trying to out-maneuver and out-predict each other, followed by hours or days of the leaders waiting for news of the outcome.

    1. Re:Unmanned by Anonymous Coward · · Score: 0

      Wings could however still permit a cheap way to carry weaponry such as missiles, permitting a reduced center and overall mass.

    2. Re:Unmanned by pagaboy · · Score: 1

      Spheres or cylinders are more likely for small ships

      or, while we're at it, cuboid phone-box-like shapes.

    3. Re:Unmanned by Arancaytar · · Score: 1

      Painted blue, of course.

    4. Re:Unmanned by Kjella · · Score: 1

      Space battles would consist of months, possibly years, of unmanned travel and intensive computation, followed by seconds of computers trying to out-maneuver and out-predict each other, followed by hours or days of the leaders waiting for news of the outcome.

      Months of travel? Hours or days for news? Dude, it's over 4 light years to the closest star. If we met in the middle it would take years for the news to reach leaders back home. Unless you're talking about a war in this solar system, in which case I suspect 99% will happen in earth orbit since we've got no targets anywhere else worth anything. Oh, I suppose you could try throwing an asteroid down the gravity well and aim for the country you want to destroy but I doubt it's that easy to deorbit one in a timely fashion.

      --
      Live today, because you never know what tomorrow brings
    5. Re:Unmanned by Anonymous Coward · · Score: 0

      One thing that most of science fiction gets wrong is that spaceships, even small and maneuverable fighters, are not airplanes. They do not contend with air resistance and accordingly do not require a wedge-shaped bow - let alone wings. Spheres or cylinders are more likely for small ships, while larger and slower ships might afford less compact designs that would deal poorly with high acceleration.

      The second is manned flight. Hell, we've mapped much of the Solar system and been in orbit around about half(?) of all planets, without going further than the moon, or in fact leaving Earth orbit for very nearly 40 years. Even on Earth, it becomes increasingly more practical to wage war with remote-controlled drones than manned planes. Add the possibility of AI advancing far enough for autonomous drones, and I don't think an organic individual would be within light-hours of the battle.

      Which brings us to the third part: Soldiers say that battles consist of long periods of waiting followed by brief bursts of excitement. Space battles would consist of months, possibly years, of unmanned travel and intensive computation, followed by seconds of computers trying to out-maneuver and out-predict each other, followed by hours or days of the leaders waiting for news of the outcome.

      Most of those TV space ships can also land on planets, hence the streamlining

  102. One thing is for sure.. by Anonymous Coward · · Score: 0

    ..after the battle the battlefield would be a clean up nightmare.

  103. Re:In Space no can hear you ... by six025 · · Score: 2

    WOOSH!

  104. Basically, pointless by Anonymous Coward · · Score: 0

    But this is a good read: "What realistic space combat would be like." http://forums.spacebattles.com/showthread.php?t=131056

  105. Biological / Nanotech by Guppy · · Score: 1

    An invisible cloud of spores on an orbital trajectory that intersects with your planet. Being extremely tiny, the large surface area to mass ratio results in terminal velocities too low to burn up on re-entry. A few months later, your planet's population collapses.

    Except for Madagascar :P

    1. Re:Biological / Nanotech by RichMan · · Score: 1

      Not need to be even biologial. Use the mass equivalent of the 1km asteroid but all as dust. It will all burn up in the atmosphere dumping the 1/2mv^2 kinetic energy as heat. Insta-boiled planet.

  106. Small ships only by 91degrees · · Score: 1

    There's no major advantage to big spacecraft. You have the extra cost of getting them up there, you have a bigger target, you have less flexibility. And once you do enough damage the whole thing is out of commission.

    For the cost of a capital ship you can have several small missile boats. They're more manoeuvrable, able to spread themselves out and taking one out doesn't do any harm to the others.

    The Honor Harrington and Star Trek style battles are cool and all, but it's based on ship to ship battles because that's what we know.

    1. Re:Small ships only by Bryan+Bytehead · · Score: 1

      There's no major advantage to big spacecraft.

      Big spacecraft, at least by the technology we have currently, have one advantage. They can carry much more energy with them, to be either used for energy weapons, or to be used to accelerate kinetic weapons. Now, if you can get a terawatt reactor with fuel with all the other accoutrements that need to go into a spaceship the size of a 747, you might have something. Somehow, I doubt that you're going to get the basics of a space fighter down to the size of a 747. But you're still going to have some large structures out there for support. You're not going to fly down to Earth because you've ran out of fuel. And in your down time, you're going to want to have some kind of gravity, which today, means some kind of rotating structure, be it like the space station in 2001, or two capsules/fighters twirling around a cable.

      And while smaller might be better, remember that at the distances that battles will be fought at, I doubt that any enemy that would be shot at would actually be capable of being seen by human eyes. Blinded by the darkness of space or the brightness of the sun, targeting will be by various means and completely automated. Whether something is 100 meters or 300, if you're shooting over 100K meters, it's still shooting mosquitoes.

      We're already getting to the point where automated cars will be taking the road, we certainly will have that for space ships when we finally get our asses out to space.

      --
      Bryan
  107. subwarfare + drones by RichMan · · Score: 2

    If your "base" or "ship" is located it is going to be targeted. Targeted things will die in a swarm of smart munitions that shoot mass and high energy and at the same time do mecho-kamakazi dives.

    The way to survive is to not be found. So stand off a long long way. Shed heat out of system, put a cloak on yourself from an insystem perspective. Send in your drones to locate the enemy and destroy them. Do not enter any area unless you are sure it is safe.

    At the least you will be blanketed by a massive set of drones to find and destroy any drones near you. And locate and destroy any main/mother ship if it is detected.

    1. Re:subwarfare + drones by FatLittleMonkey · · Score: 1

      The way to survive is to not be found. So stand off a long long way. Shed heat out of system, put a cloak on yourself from an insystem perspective. Send in your drones to locate the enemy and destroy them.

      "Send"? The moment you fire any kind of propulsion, you light up like a supernova. With propulsion type (chemical, ion, fusion) and strength obvious from the exhaust spectrum, you give every watcher in the solar system your propulsive energy and vector, your acceleration then gives them your ship mass. From there you are utterly predictable until you fire your engines again, and then you are unpredictable only until the light reaches the enemies' sensors. Even small course correction burns will be visible over millions of kilometres.

      Shed heat out of system, put a cloak on yourself from an insystem perspective.

      Unless your entire enemy consists of one ship in the entire solar system, and your entire war consists of a single attack, your enemy probably consists of more than one observer and your radiators are visible to someone. Worse, I doubt you can sufficiently freeze you enemy-facing side down to background temperatures (around 4K) to avoid glowing like a star in infrared or microwave. And the more you try to cool your facing side, the more energy you need, the more heat you need to dump, the bigger your radiators need to be, and the "brighter" they are.

      People have been debating this stuff for decades. Stealth, decoys, counter-measures, etc. The physics doesn't work. You can't hide in space unless there's a magic "cloak" technology, a la Star Trek, and reactionless thrusters. For anything realistically near-future, everything in space is visible. Every object is tagged and tracked, every move instantly obvious (relatively, haha).

      --
      Science is all about firing a drunk pig out of a cannon just to see what happens.
  108. Everyone is Discounting the Humans in Space Battle by DontPanicMMH · · Score: 1

    Everyone seems to be envisioning a robotic battle.

    Although we've made tremendous progress in getting spacecraft and other vehicles to act autonomously, we usually keep them on a pretty tight leash, and have thought out beforehand most of the situations we expect these automonous vehicles to negotiate.

    It wouldn't surprise me to find humans still have a place in a hypothetical space battlefield, especially considering each opponent would strive to inject appropriate "fog of war" to confuse the robotic elements.

    Either that, or well find a way to manufacture robots that are equivilant and/or superior to humans.

  109. Antares series by M McCollum by Fusselwurm · · Score: 1

    I read the Antares novels by Michael McCollum some time ago. Got a very realistic feel.

    • ships: living quarters to the outside, spinning when stationary to have gravity at least somewhere. all sizes, from battleship to one-man-scout. ugly.
    • weapons: lasers, nuclear weapons.
    • battles: short and rather deadly
  110. Earth-to-Space anti-satellite missiles by buddyglass · · Score: 1

    EtoS = Earth to Space. Basically destroy an enemy's space-based surveillance, communication and guidance technology as a precursor to actual terrestrial warfare. Imagine if you could knock out the US's military positioning, surveillance and communication satellites. It'd be a juiced version of Pearl Harbor but without the human casualties.

  111. Bows and arrows will make a comeback by fiannaFailMan · · Score: 1

    Why use chemical propellants when you can fire a projectile that'll go on indefinitely until it hits something? No need for the expensive engine to be placed on the disposable weapon itself, just inject the initial acceleration at launch. Rather than a mechanical spring mechanism maybe a linear motor type launch could be used, but only if it's going to get sufficient power in at launch. Any thrusting action on the projectile could be limited to maneuvering for targetting purposes.

    As for any explosive material on the projectile, that depends on what kind of armor it's up against. It'd be hard to speculate about the weapons without also speculating about what's likely to be developed to defend against them.

    --
    Drill baby drill - on Mars
  112. Re: Humans of no? by tragedy · · Score: 1

    But the concept of war is a little ridiculous in and of itself. Just look at history and all the bizarre and stupid stuff humans have done. We'll almost certainly continue doing bizarre and stupid stuff well into the future, including if we ever manage to populate anywhere other than this planet.

  113. no space combat by Anonymous Coward · · Score: 0

    There will be no interstellar space combat. Any race intelligent enough to navigate the vast distances will have long since learned how to manage its own resources effectively. It will also be advanced enough that it would have no need to engage in combat. It would either destroy something or not. There is no try.

    1. Re:no space combat by gatkinso · · Score: 1

      That is a very stupid assumption.

      On this planet, the only model we have, those with plenty... more than enough to survive and thrive in complete luxury, still subjugate and exploit those with less to get at their resources for nothing more than financial gain (not that this gain will impact their standard of living at all, it simply makes huge balances on a ledger sheet huger).

      I see no reason at all why any other race would be different.

      You project your ideals onto them. I project our current reality. Maybe we are both wrong, but I am betting the loser in this argument would be you and your ilk.

      --
      I am very small, utmostly microscopic.
  114. There won't be any space warfare by NotQuiteReal · · Score: 4, Funny

    The TSA will take away your guns when you board.

    --
    This issue is a bit more complicated than you think.
    1. Re:There won't be any space warfare by FrankN · · Score: 1

      As an avid sci-fi reader for 40+ years, and wanna be writer, I've wasted many hours thinking about space battles. My conclusion is, massive fleets doing battle is unlikely because it will just be too damn expensive. I Iove stories about fleets of ships, from the biggest capital ships down to swarms of fighters, but now I'm starting to think, when yet another battleship explodes like the Death Star, damn that was a lot of money.

      I read one story where a planet was wiped out using sand. Granted it was a LOT of sand accelerated to nearly the speed of light but it points out that something very small, going very fast, is a potent weapon. Just look at today's headlines where a few dollars of diesel and fertilizer are destroying much more expensive things. Could any economy support the construction and destruction of such expensive toys? Personally I think such massive fleet actions will remain the stuff of science fiction.

      Putting the economic arguments against such things aside, I'm an advocate of the right tool for the job school of thinking. Which just means there will be all kinds of weapons in play. Someone building mirror coated ships means someone else will invent a hammer throwing gun. Either way, someone is in for some bad luck.

      Frank

  115. Not sure by Anonymous Coward · · Score: 0

    I would think that having large ships of the line would be pointless. They make very large, slow targets, regardless of how well armed. Only launch platforms such as aircraft carriers would be worthwhile. Without some sort of shielding, they would be sitting ducks, unable to maneuver away from any attack. For defense in such situations, a cloud of automated drones could be deployed to act as a shield, intercepting inbound projectiles. A dense enough cloud might work for lasers or rail-guns too, though projectiles at rail-gun velocity would likely penetrate a significant number of targets. An effective defense might come in the form of directed EMP (assuming that they attackers aren't shielded against it).

    For offense, I would think a large group of small, heavily armed fighters would be appropriate, armed with energy and projectile weapons. Bombs would be pointless since they rely on gravity and aerodynamics. The most effective attack force would be unmanned vehicles, either robotic, or remotely piloted. The lack of air would not allow for any atmospheric-type maneuvers, so the fighters would likely be flying in nearly straight-line attacks. Maneuvers would require maneuvering thrusters, like those used on the space shuttle for course correction, and would be limited by fuel supply, unless a new fuel source is found (fusion plasma-ejection-based maneuvering jets, anyone?). I would think that the most effective weapons would be laser, rail-gun, shotgun-type projectile, or missiles.

    And of course, for any people unlucky enough to be hit, no one will hear you scream.

  116. Sand by Roachie · · Score: 1

    Given the velocities, that would sum it up -in my estimation.

    --
    This sig is not paradoxical or ironic.
  117. Big, Bigger, Biggest by WhiteWolf666 · · Score: 1

    IMHO?

    The only "realistic" interstellar space vessels that make sense would be captured asteroids utilizing Orion-like propulsion. I haven't looked at the maximum possible mass of an Orion-type spacecraft, but I believe it is substantially above billions of tons if you only have to consider the pusher plate system. Advances in material sciences, and the possibility of "super" systems strengthened utilizing magnetic/electrical charges could dramatically increase this number further, to the point where even the largest of asteroids could potentially be utilized as space craft.

    These asteroids would be wired and covered with a variety of useful mounts, including lasers on turrets, a variety of sensors and cameras, railgun-style mass drivers, and a variety of openings protected by plasma windows. On sufficiently large asteroids, these openings could include hangars for auxiliary craft, such as surface to space launchers, and versatile, high-speed drones. Drones could be utilized as scouts, remote sensors, maintenance devices, or perhaps, weapons platforms (suicide or otherwise).

    If you needed to militarize such a craft, you wouldn't have to do much. Many of the "tools" on this craft would be versatile enough to be utilized as weapons. A railgun, or sufficiently strong utility laser would be obvious. By virtue of utilizing an asteroid as your "hull", a significant amount of armor is "built in". Turrets/Windows etc. . . could be protected by a variety of means. The above-linked Plasma Window, as well as a variety of Plasma Bubble research suggests to me that the possibilities of creating mixed-phase materials that can be oriented into coherent structures using charges and magnetic fields-- by this I am suggesting a "metal" that retains it shape based on charge passing through, and whose tensile strength is determined by a combination of material properties and energy usage. One can envision clouds of plasma, or even clouds of metals/solids/liquids which could be strengthened utilizing such tools. I would think that these "shield" would not be utilized to protect the entire asteroid, and rather be deployed to protect sensitive portions of the asteroid.

    Active countermeasures would be important, as well; railguns/lasers could be utilized to divert the course of incoming projectiles, while electronic countermeasures and radios would be utilized to disrupt/confuse enemy sensors. Boarding "combat" drones could be utilized to attack the propulsion, weapon, and control systems of enemy asteroid-ships; these would probably be launched in swarms, and by railgun.

    The "vast" nature of space suggests that there could be two different form of battlegrounds. Interstellar distances are too large to be considered battlegrounds; it only really makes sense to consider solar distances. Inside solar systems, combat between, say, Mars and Earth would be a slow affair; I picture rail guns hurtling projectiles at a significant fraction of light, while defense systems utilizing lasers and smaller projectiles fire back to alter the course of incoming projectiles. At closer scales, combat becomes a more conventional affair, and probably looks like a cross between modern carrier combat and drone warfare.

    --
    WhiteWolf666 an exBush supporter. All you new-school,compassionate,save the children Republicans can rot in hell
  118. The Real Problem is post battle clean up by Anonymous Coward · · Score: 0

    Any battle around a planet would leave so much debris floating around that it would make entire orbits unsafe. Think about how much trouble was caused when two satellites collided now imagine the remains of a large number of ships or USV (Unmanned Space Vehicles) floating around. One battle could leave earth with no safe place to orbit satellites or a safe trajectory to leave.

    That and the best description of space combat I have heard: "Space combat is like hide and go seek in the dark with Flash lights and rocket launchers".

    Passive sensors have much farther range than active sensors.

    1. Re:The Real Problem is post battle clean up by robot256 · · Score: 2

      Any battle around a planet would leave so much debris floating around that it would make entire orbits unsafe. Think about how much trouble was caused when two satellites collided now imagine the remains of a large number of ships or USV (Unmanned Space Vehicles) floating around. One battle could leave earth with no safe place to orbit satellites or a safe trajectory to leave.

      Finally someone mentioned the debris problem. >200 posts about kinetic weapons and flak shot and nukes and nobody considered the crap that misses is just going to come around in orbit and hit your back. The oft-posted Wikipedia article is on the Kessler syndrome.

      I expect actual space combat to be almost entirely electronic warfare. If you can take control of a satellite, you can simply program it to de-orbit itself, possibly onto a target of your choice. The most effective physical ordinance would be a "robotic end-of-life drone" with a de-orbit engine that would simply attach itself to an enemy satellite and make it fall into the atmosphere. There is no way anyone hoping for anything less than Armageddon is going to start firing more conventional weapons than an occasional missile (as the Chinese have).

      Of course, the same thing could be said about nuclear weapons on the planet's surface, so there's no telling how far a Cold War-style arms race would go in space. It is simply a logical extension of the principle of Mutually Assured Destruction. But again, it's a lot more likely that jamming, espionage and hacking from orbit and the ground will be used to disable a space asset. Of course, you could program a dead-man switch on your missile satellites so they go off when they lose communication, but we learned not do that from Dr. Strangelove.

  119. Star Trek by Anonymous Coward · · Score: 0

    Look here:

    http://upload.wikimedia.org/wikipedia/commons/3/3c/Star_Trek_text_game.png

    Real space combat at its finest.

  120. Kinetics or radiation by TheEmpyrean · · Score: 1

    There's going to be two main methods of ordinance delivery: kinetic kill weapons, and radiation.

    Kinetic kill is easy enough to envision, essentially a high tech version of a rifle or cannon. Something with high mass, at high speed with enough inertia and kinetic energy to crumple whatever structure it hits, if it doesn't simply punch clean through, creating all sorts of havoc.

    But, there's the other silent killer... radiation. Hard, soft, thermal, etc.

    You don't have to kill the vehicle, just who's driving it.

  121. Go watch... by Anonymous Coward · · Score: 0

    ... Moonraker.

  122. Down... by Anonymous Coward · · Score: 0

    The enemies gate is down.

  123. Hyperkinetic asteroids by ldobehardcore · · Score: 1

    I'm thinking that we'll pack asteroids with nuclear weapons and launch them at the enemy's general direction using rail or coil guns. Proximity fuse senses a ship blows up the nuke, huge debris field. No escape.

    Not that interesting. And it would be a bad idea if it's an orbital battle. But I think it's pretty feasible in interplanetary war. The main problem with all space battle is the vast distances to be covered

    --
    Hectice, baby, Mercator says hello to you
  124. missiles lots of missiles by Anonymous Coward · · Score: 0

    Long range missiles would be the main weapons, but kinetic energy weapons would also be used.

    Most combat would be very long range.

    There might be many kinds of warheads. Some missiles might carry giant shotguns. This would be useful when the velocity differences are quite large so hitting the enemy with a few grams of shot is enough to cause serious damage. In other instances, the warheads would be thermonuclear bombs, possibly with casings designed to enhance the shock wave or pepper enemy positions with shot.

    Lasers would be used, mainly to shoot down enemy missiles on approach.

    In close combat, you'd need armored and probably powered space suits and the main weapons would be armor-piercing slug shooters, similar to what we use today but with more advanced targeting systems. Few things can pack as much punch in as small a volume as a 9mm shell. But there might also be weapons specialized to disable enemy space suits. It may be easier to jam up an enemy's armor than to penetrate it.

  125. It's going to be different. by Bryan+Bytehead · · Score: 1

    Expect drones, and if they are spread out enough, drones with enough intelligence to do the fighting without human intervention.

    Energy weapons might be workable by then. Giga or terawatt lasers might be able to get enough energy on somebody long enough to do some damage.

    Missiles, nuclear or chemical, that explode on or near contact, again, self guided, may work. The trouble is if they miss, they won't have enough fuel to hit anything else close by, unless a trajectory is planned for that. And we all know what Sun Tzu says, no plan survives contact with the enemy.

    The other weapon choice will be kinetic weapons, which may be not more than railguns throwing whatever mass they can at the enemy. Or as Ian Douglas uses in his Galactic Marine series, sand bags with chemical explosives (you don't want the sand to be melted) are boosted to some fraction of the speed of light and the bomb goes off, spreading the sand, killing your enemy that way.

    And I would certainly add Ian Douglas as an author to read about possible space combat.

    --
    Bryan
  126. Bombings, mostly by Anonymous Coward · · Score: 0

    More or less like the situation in the air today. Any air - air action is pretty secondary, and mostly they just unleash hell onto the ground.

  127. WW1 revisited in space by L3370 · · Score: 1

    With so much of movement through space being dependent on gravitational forces, I'd imagine the FIRST era of space battles being fairly bleek and fatalistic...much like WWI, where waves of men went charging to their death because technology outpaced current warfare tactics. I imagine two sides launching missles at eachother from hundres of thousands of km away, with both sides making no attempt to change their trajectory, praying to the space gods that the other side's weapons failed or were inaccurate.

    Lets say you have a ship going from earth to...Jupiter. Your flight course would be a rigid window because other planetary bodies will be pushing and pulling you in different directions.. Altering your ship's course would alter your ability to reach your intended destination. Moving out of the way of a weapon or slowing down might slingshot you out of an orbit, or pull you into another. Such gravitational forces would need serious power to counteract. Would a ship carry enough resources to do this?

    I'm thinking of it similar to naval battles where large ships take immense power to change their direction or speed. A large ship can only turn so fast, and even then it's a fairly slow correction. Torpedos fired undetected or from a close enough distance with consideration to target's speed and direction could make maneuvering futile. Space battle could have similar problems to deal with. Can you detect a missle before it hits you? Could you change direction to avoid it without putting your trajectory at risk? Do you have the power and resources to do it at all?

    If someone decided to use LASERS PEW PEW!, any space travel would be signing your own death warrant.

  128. The better question is what to fight over by starcraftsicko · · Score: 2

    Everyone jumps to space opera when the question of space combat comes up. Cruisers. Remotes. Lasers fired from absurd distances. F***ing death stars. Rail guns. Doomsday machines.

    Sure they could happen I guess, but the events that would get us there remain bad science fiction. My first thought when I think about space combat though is...

    Marines. Hand to hand.

    Blowing stuff up is one thing. Capturing cargo ships is where the value lies in space combat. So how do you capture that load of ore/food/gas? Or to the other side, how will you and your crew of 7 stop those 23 hardsuited boarders from taking your ship?

  129. Kessler syndrome by medv4380 · · Score: 1

    Space combat being fought on any scale in the next 100 years would probably end badly for both sides. If you just start fighting in Earth orbit you're probably going to trigger Kessler Syndrome and destroy all viable orbits. Unless we make some kind of shielding that can work at stopping a flying bolt from wiping out even your most well built craft it probably won't happen after they figure out that the shrapnel from the "loser" killed the "winning". Then if it got real bad people would just start deliberately leaving trash around in hopes that it wiped out any pursuers. Ending in no one being able to safely leave the Earth and no one being able to safely come home.

  130. Nothing to fight for by Hentes · · Score: 1

    Space is empty, there is nothing in it to fight for. The "fights" would take place in orbit. Most of them would be raids conducted by swarms of stealth rockets, armed with WMDs, undetectable and too fast to deflect. If energy is plentiful, two planets could simply shoot each other with lasers from the ground, without any need of space vehicles. Manned spacecrafts, if existed, would be used for reconnaisance, and wouldn't risk revealing their position by engaging in combat.

  131. Space combat is... by hsthompson69 · · Score: 1

    ...economic combat. Getting *anything* up in to space is expensive, and whatever the weapon du jour is (nukes, lasers, rail guns), you've got to be able to afford to design, manufacture, and launch the damn thing. Whoever masters the free market best wins.

    And if you posit that there is no scarcity, and expense is no object, then frankly, nobody is going to be fighting anyone else - just hop off to some uninhabited portion of the universe, and create your own damn utopia.

  132. Depending on which tech... by mseeger · · Score: 1

    At the current level: short and expensive.

  133. Try going for a dose of reality by HeckRuler · · Score: 2

    I'm sorry. "Real space combat" doesn't mesh with "capital ship". If you want to look at real space combat, look at what's been done with launching missiles at satellites. There's also been some examples of blinding satellites with lasers from ground. THAT is reality for you. If you're looking at near-future scenarios, it'll be the same damn thing, but on mars or the moon. If the target is farther away, it will be a larger and more expensive missile. The target will not have counter-measures. That would be ludicrously expensive with a low chance of effectiveness. The counter-measure equivalent will be a fully armed nation back on Earth that will kick the shit out of anyone that messes with their satellites/probes/colonies. But I imagine that by and far anything that is outside of orbit will be immune to aggression.

    If you're looking for space combat in the far future where people hop about the system at FTL speeds, then hell if I know what it'll be like.

  134. Mobile Beam Cannons by zAPPzAPP · · Score: 1

    I liked this idea from some book:

    1.) detect general position of target
    2.) fly missiles into "close range" of target (less than a couple of light-seconds, so random evasive maneuvers won't matter)
    at this point the relative velocity of missile and target is very high, so instead of trying to hit it directly
    3.) detonate nuclear warhead and use it to power a single laser shot aimed at target

  135. Ha by Anonymous Coward · · Score: 0

    Deny space to all by launching 5 billion ball bearings into orbit.

  136. Railguns and Coil Guns by Prof+Utonium · · Score: 1

    It would be very simple, almost boring, yet terrifying given that there may not be much defense. It would involve railguns and coil guns, just because it could, and would not be hampered by the problems we see here on earth. You would have ultra-high-velocity projectiles in zero gravity. Speeds might not be limited. If you can see it, you can track, and you can send a small projectile to rip a hole through it from a thousand miles away and hit it in under 4 minutes, probably less, at one shot every 6 seconds or so. So small they can't see it coming and such high velocities that even armor plating wouldn't matter. Preprogrammed barrages would provide a spread to ensure a hit (there are only so many directions and speeds the spacecraft can go depending on size and propulsion). Quite the sitting ducks if you ask me. The coil guns would be great for hand-held fighting, though power sources would be a challenge.

  137. Re: Humans of no? by KDR_11k · · Score: 1

    I assume the idea is that the enemy population is separated from yours by the void of space so you'd need to cross space to reach them. Obviously the drones are trying to get to the enemy population while the enemy drones will intercept them and go for your population.

    Yes, not going to happen any time soon but this is a thought exercise.

    --
    Justice is the sheep getting arrested while an impartial judge declares the vote void.
  138. Too easy to seriously damage something by Anonymous Coward · · Score: 0

    There have been so many ways to destroy things in space mentioned (lasers, small masses at high speeds, and guided payloads), and relatively few solutions as to how to counter one, let alone all of them. In my mind, beyond there being no good reason to put real people on the ships, making large capital ships seems like the worst idea out there because of the potential loss of the huge amount of resources/production time you put into making it. Having unmanned vehicles just large enough to propel themselves and fire their weapon would let you have a scaled production model that is effective against larger targets and with any amount of swarm AI probably deadlier that anything of equivalent resource cost.

    Actually managing to hit a target with people or resources of any value would be the ultimate goal. This is a lot easier if your swarm can just blanket an area of space in the way sub pickets in WWII did. Your swarm would detect a high value target, and try and coordinate a massed attacked before it reached it's destination. A blockade of such ships would have to be spread fairly far from planets because the technology that would make such things possible would probably be usable against them, and a swarm of smaller vessels vs a planetary defense system would almost certainly favor the planet. However, that just means hiding your swarms behind planets, moons, debris, comets, asteroids, or other features. Sure this means getting back and forth from the moon to Earth, or even Mars would be comparatively safe, but you can very effectively blockade a solar system with comparatively little resource expenditure.

  139. Never underestimate a million-year-old alien enemy by Anonymous Coward · · Score: 0

    This assumes a level of technology and planning within a few centuries of ours. Most spacefaring alien races will have had thousands or millions of years to prepare for war. Strategies, technologies, weapons and traps would encompass at least entire solar systems. Stars will be bombs and bullets will be smaller than atoms. I recommend reading Anvil of Stars: http://en.wikipedia.org/wiki/Anvil_of_Stars

  140. Reynolds by mcelrath · · Score: 2

    I think the books of Alastair Reynolds are quite accurate, describing fleets moving near light speed. In such a case all you really have to do is arrange for some debris in the path of the oncoming fleet (e.g. sand) and that will take it out.

    One thing that has always annoyed me is that I've never seen a reasonable treatment of space wars in orbit. No one gets the orbital mechanics correct. There are a lot of counter intuitive things there. For instance, you wouldn't want to shoot a missile directly (line of sight) toward an enemy. If he's in a lower orbit you'd actually fire it backwards from the perspective of your orbit. The missile would lose orbital energy until it reached the target's orbit. Likewise, if he's in a higher orbit you'd fire it forward, in the direction of your orbit. (Thrusting toward or away from the planet you're orbiting serves to make your orbit elliptical, but doesn't raise your orbit) One also needs to be very careful about overtaking your target. There may be tactics like overtaking an enemy by dropping to a lower orbit, then thrusting back to the enemy's orbit. A dogfight would be a very counter-intuitive affair. I wish someone would make a little space sim that had the physics correct, and let players figure out the appropriate tactics.

    All that was assuming attacker and target are in parallel orbits (concentric circles). If the're not, say one is in a polar orbit and the other is in an equatorial orbit, there is such a substantial difference in their energies that any collision would be devastating, so again just dumping debris that intersects the orbit of the target would be sufficient to wipe him out.

    There are lots of other tricks. The slingshot effect, for instance, is used to hurl probes out to the outer reaches of the solar system. Essentially, the probe steals angular momentum from the planet, boosting its own velocity. The lowest-energy and highest-speed path to reach a given point can often involve such bizarre trajectories. NASA uses big computer programs to find these paths, see the Cassini probe's trajectory for an example. If you have thrusters, you can enhance your slingshot by thrusting at the point of closest approach (the velocity bump you get by thrusting there is more than thrusting at other times).

    You might claim all this orbital mechanics junk can be circumvented by using lasers or particle beam weapons. But light feels gravity too, so one has to calculate the effect of bending on the laser's trajectory from planets and other orbital bodies. Another important point is that diffraction from the aperature of the laser's lens is substantial when the target is planetary-distances away. Your nice narrow laser beam will be a harmless diffuse mess by the time it gets to Jupiter.

    Finally one should bring up the Lagrange points. These would probably be the ideal place to put weapons platforms, refuelling depots, etc. But there are only a handful of them, and an attacker would know where they are on approach, so would probably send the first volley toward them, before he could resolve any infrastructure there.

    All in all, I think orbital wars would involve a lot of calculation, a lot of waiting, a lot of un-spectacular deaths (e.g. no explosions but running into debris instead), and a lot of speculative offense. You want to fire before you can see your enemy, to take advantage of orbital mechanics. Your weapons don't need lots of energy or explosive power, you can just use orbital mechanics to your advantage. But you have to be willing to wait.

    --
    1^2=1; (-1)^2=1; 1^2=(-1)^2; 1=-1; 1=0.
    1. Re:Reynolds by Anonymous Coward · · Score: 0

      The fact that there are only five lagrangian points per two body system is actually not terribly restrictive, because you can go into orbit about them. Look at any of the spacecraft that we've ever sent to these points and you'll see that's what we did- mainly because only L4 and L5 are stable- the others actually require an orbit in order to keep the delta-v feasible.

      Here's what wikipedia has to say about orbits around L1,2,3
      Halo Orbits http://en.wikipedia.org/wiki/Halo_orbit

    2. Re:Reynolds by Anonymous Coward · · Score: 0

      > I wish someone would make a little space sim that had the [oribtal] physics correct, and let players figure out the appropriate tactics.

      Note exactly what you're looking for, but the game Osmos has some nice orbital mechanics levels (with a nice mass-ejecting / mass-collecting newtonian thrust mechanic as well) that do give the player a more intuitive sense of how orbits actually work.

      www.hemispheregames.com/osmos/

      (I am unaffiliated with the makers of Osmos, just a satisfied customer.)

  141. BBs - the perfect space weapon by mveloso · · Score: 1

    I'd say that the best defense is a large cloud of small particles, like BBs. Anything flying through space will be flying pretty quickly. Flying through a field of BBs will effectively destroy anything.

    They're cheap, hard to detect, and pretty deadly when you hit one going 15,000 mph.

    You can even make lanes, like a big 3d minefield. Good luck trying to discover the path through those.

    For offense, fling a couple of million BBs in a given direction. Space is big, things are slow, and you can do math fast enough to figure out the probable intersection points of your BB cloud and your targets. They're so cheap that you don't really need to be accurate. They're small so you can carry billions of them. And in a pinch, you can use them for building materials or something.

  142. Other examples from SF literature by bughunter · · Score: 1

    Niven and Pournelle wrote one of the best depictions of space combat in "hard" SF in their novel The Gripping Hand. Aside from the ships' shields, most of the rest of the technology obeys known physics, and therefore you have to wait minutes or even hours for your laser shot to arrive at its target (assuming the target hasn't changed course that is) and then an equal amount of time to detect whether your shot hit or missed.

    Other notable accounts can be found in Peter F. Hamilton's Night's Dawn trilogy (e.g., Lady MacBeth's missile combat above the planet Lalonde), and the final combat scene in David Brin's Startide Rising. Both of those are space opera rather than hard SF, but the combat scenes do try to minimize the necessary suspension of disbelief.

    Also worth mentioning is many scenes in Alastair Reynolds' Revelation Space series of novels.

    All in all, real world space combat is going to be a lot more like submarine warfare than is generally depicted in popular SF TV and movies. Anything analogous to an atmospheric fighter plane will very likely be a robot or waldo rather than a one-seat piloted vessel.

    (Got interrupted so posting this a long time after hitting "Reply"... sorry for any redundancies.)

    --
    I can see the fnords!
    1. Re:Other examples from SF literature by daboochmeister · · Score: 1

      All in all, real world space combat is going to be a lot more like submarine warfare than is generally depicted in popular SF TV and movies.

      Charles Stross' Singularity Sky gets this part right, I think ... good depiction of the thinking process that a ship's captain would have to go through in executing during a battle. Of course, that captain was totally whooped by someone with a different category of technology ... but in inter-cultural battles, that's probably realistic as well.

      And that's probably why the best battle-depicting Star Trek episode of all time was, in my opinion, Balance of Terror - it was based on submariner tactics, before everything went all don't-bother-trying-to-suspend-your-disbelief-ey, in all subsequent episodes ...

      --
      "Ahh! I see you're in that indeterminate Schrodinger state where - oh, uh ... never mind." Dave Bucci
  143. The Up Side to Space War by arthurpaliden · · Score: 1

    Nuclear exchanges in space will be the only way we will detect other races.

  144. Satellites as targets by hendrikboom · · Score: 1

    Most likely, it'll start with killing the enemy's GPS and comm satellites to prevent them from supporting ground troops.

    It may not even take launches. Much easier and much more useful to break into the satellites' OSes and take them over.

    -- hendrik

  145. starship operators by Anonymous Coward · · Score: 0

    The only movie/anime/etc that does any kind of decent job of it at all is Starship Operators. Can't find any episodes or etc on youtube. Turn the noise down on this AMV maybe: http://www.youtube.com/watch?v=tFVpgCLsiPQ&feature=related . Starship Operators *does* have hyperspace, so that aspect is unrealistic.

  146. Re:More like submarines than battleships or fighte by painandgreed · · Score: 1

    No, it's really hard to hide in space. Pretty much the only way to do it is hide behind something else. Anything that isn't at background radiation levels of heat (3 kelvin) will be visible to anybody looking. Anything with enough heat to keep a person alive, have active electronics will glow fairly brightly. Anything putting out enough energy to alter course will glow a thousand times more. Given a wide array of observational sattelites and other sensors that will be up and running for years before any combat, everybody is going to know where everybody else is and where they are going pretty much at all times.

  147. Re: Humans of no? by queazocotal · · Score: 2

    You're assuming that there is nothing else going on in space other than war.
    By the time space war becomes possible, that's pretty much not going to be the case.
    (Neglecting for the moment the argument that ICBMs are a form of space-based warfare)

    In order to be able to 'project force' into space, there has to be an existing space economy to a degree.
    This may involve mining, colonies, power generation or habitats, or some combination of these.

    Consider the large number of naval blockades in the past that strangled countries economies.
    Back ten thousand years, if you isolated most countries totally by sea, essentially nobody would die.
    Do it today, and (for example) about a third of the Japanese population would.

  148. This question to be answered now! by Grindalf · · Score: 0

    We will all live in domed houses and listen to “Mellotron” music. We will eat space pills for meals. The enemy will be green and have a television aerial on their head. They will fly in silver space saucers and rivet covered rocket ships with sparklers for engines. Their overlords will wear red capes and their robot assassins will partially look like dustbins. Their world will be barren and they will be in search for hypnotic slaves. The principal weapon will be the “Ray Gun” which is never completely explained. I hope this clears matters up ...

    --
    The purpose of existence is to make money.
  149. No, dark and fast by Chemisor · · Score: 5, Interesting

    The key to combat anywhere is stealth and ambushes followed by application of maximum force. In space this translates to first getting to the enemy star system undetected. This is dead easy, due to space being so huge and the spaceships being so small. Once you get close to the system, land in the cometary cloud. Spread through the cloud over a couple of centuries. Build fusion drives on every comet you land on. Paint each one a nonreflective black to make them undetectable by any means other than star occlusion. Fire the drives to alter orbits in such a manner as to bring maximum amount of comets impacting each habitable planet at the same time. If the poor shmucks detect anything, it will be very close to impact time and with the number of huge rocks flying at them, a few hundred will get through and turn each planet totally uninhabitable. For best results, follow through with additional bombardment to keep the dust up for a few decades; this should come close to sterilizing the entire surface. When the dust clears, land the colony ship. Repopulate the biosphere with Earth stock. Exterminate anything else. This is the only realistic kind of space combat there's going to be.

    1. Re:No, dark and fast by AdamWill · · Score: 4, Interesting

      you're assuming 'combat between people and some other species we simply want to annihilate', which is all well and good, but it's not the only possible type of combat.

      it's pretty much a given for anyone who's thought about it for more than thirty seconds that kinetic bombardment is pretty much unanswerable, and hence the only type of combat that it's worth really thinking about is the kind in which kinetic bombardment of a 'stationary' target doesn't really achieve anything - so we're talking about, say, combat between two factions, whether human or non-human, for control of existing resources which have value to both sides. There's no point kinetically bombarding a planet if the whole point of the war is to gain control of something on the planet.

    2. Re:No, dark and fast by Daniel+Dvorkin · · Score: 1

      In space this translates to first getting to the enemy star system undetected. This is dead easy, due to space being so huge and the spaceships being so small.

      Any propulsion system capable of moving spacecraft over interstellar distances anywhere near the speed of light -- which would be necessary to fight an interstellar war on anything approaching a human timescale; you're not going to send your superweapon off at some tiny fraction of c and wait a few thousand years for it to reach your enemy -- will generate an enormous amount of radiation on the way, which will be easily detectable. Space is huge, but it's also mostly, you know, empty space. "Colonel, we've picked up a matter-anti-matter drive signature headed our way from Gliese 581!" "Sound the alarm, Sergeant, we've only got 25 years to get ready."

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
    3. Re:No, dark and fast by Anonymous Coward · · Score: 0

      Ever tried to operate electronics at 3 degrees kelvin?

      Stealth in space is near impossible... because spacecraft are small but SO much hotter than their surrounds. They positively glow in infared, regardless of what you do to mitigate it. Nonreflective black paint doesn't stop your fusion generator and engines glowing.

      In b4 heatsinks and thermal batteries, because good luck making them work for extended periods and good luck dissipating that excess.

      Of course, i AM assuing that the opposing biosphere is at least post-industrial (or equivalent thereof), but that doesn't necessarily leave you the centuries you'd need to perform a manouver like this one... And, well... I know this is nitpicking but... 'fast' isn't a term we normally apply to a plan that takes centuries to execute.

    4. Re:No, dark and fast by Anonymous Coward · · Score: 0

      Any kind of spacecraft puts out quite a bit of heat compared to the background (unless you happen to be coming from the direction of a nearby sun or hot planet) and is thus easy to detect. If you're looking, of course. Even though "space is big", it only takes a few cameras to monitor 360 x 360 degrees.

    5. Re:No, dark and fast by Anonymous Coward · · Score: 0

      No, it's not dead easy to hide. Do you have any idea how bright a -150 Celsius ship (assuming you could get it that low) would look to IR cameras against the backdrop of space? Blinding, so long as you're looking anywhere near the right part of the sky. And don't even think about turning the drives on if it's anywhere near sufficient to move your ship.

    6. Re:No, dark and fast by Anonymous Coward · · Score: 0

      Yes. Dean McLaughlin's "The Fury From Earth" (New york; Pyramid, 1964)

    7. Re:No, dark and fast by dargaud · · Score: 1

      Spread through the cloud over a couple of centuries [...] This is the only realistic kind of space combat there's going to be.

      Well, there can be many different objectives. If you are in more of a hurry, you could land discreetly with a recon team, grab a couple of locals, anal-probe them to learn their biochemistry, design and release a killer plague. Genocide on the cheap and the biosphere may not be too much fucked depending on how wide your bioweapon was targetted.

      --
      Non-Linux Penguins ?
    8. Re:No, dark and fast by gknoy · · Score: 1

      I suspect that the most likely form of space combat will be humans fighting other humans, sadly. On the bright side, it might be more conducive to our species' survival than if we were to encounter hostile aliens.

    9. Re:No, dark and fast by Dracophile · · Score: 1

      There is no stealth in space, unless you like your space vehicles to radiate at about 3deg K or whatever the background temperature is.

      --
      Athy, athier, athiest.
    10. Re:No, dark and fast by tehcyder · · Score: 1

      Our chief weapon is stealth - stealth and ambushes - ambushes and steakth.. Our two weapons are stealth and ambushes - and the application of maximum force. Our *three* weapons are stealth, ambushes and the application of maximum force - and an almost fanatical devotion to the Pope. Our *four* - no - *Amongst* our weapons - amongst our weaponry - are such elements as stealth, ambushes - I'll come in again.

      --
      To have a right to do a thing is not at all the same as to be right in doing it
    11. Re:No, dark and fast by Anonymous Coward · · Score: 0

      And a nearby enemy of the target system observes, takes note of your expected colony ship and intercepts and boards it and imprisons the crew for future cruel genetic experiments and commandeers your supplies and then calmly takes over the target system with ease, without even a thank you!

      There's room for many kinds of space battles.

    12. Re:No, dark and fast by Anonymous Coward · · Score: 0

      True anything in a gravity well is pretty much fucked.

      Space combat will consist of sending out millions of scout probes and decoy probes built on asteroids.The probes will be disguised as smaller asteroids. The probes will try to detect and destroy other probes and enemy asteroids.

      When all is said and done all that will be left are a few paranoid sentient asteroids in the oort cloud that will refuse to contact other civilizations for fear of being vaporized.

      I call it the paranoid asteroid solution to the Fermi paradox.

    13. Re:No, dark and fast by Anonymous Coward · · Score: 0

      Painting comets black and sending them into the system is not very good engineering. Black doesn't reflect sunlight well, but it does absorb sunlight quite well. Heating a chunk of frozen water and methane with a lot of dirt included is not a good way of keeping the thing together for maximum impact. Any telescopes on the 'target' planet will see the expanding blobs of gas several years ahead of impact.

      A better choice would be to build flat sheets of aluminum and set them ahead of your comet missiles, slanted to reflect only space back to the targets. Let them shield your comet chunks. Light, radar, etc. will be reflected by the aluminum shields, and leave the comet cores intact. The shade will keep the cores cool, so that there is no cometary coma to detect.

      Of course, if you are attacking a developed solar system, there will be more than one direction that you will need to shield from signals, so the closer you get, the more chance that they will see you coming. Surprise may well be impossible in true interstellar war. At least with Physics as we now understand it.

    14. Re:No, dark and fast by Anonymous Coward · · Score: 0

      you're assuming 'combat between people and some other species we simply want to annihilate', which is all well and good, but it's not the only possible type of combat.

      yeah, I want to enslave all the women of Rigel 7.

    15. Re:No, dark and fast by Anonymous Coward · · Score: 0

      "Build fusion drives on every comet you land on. Paint each one a nonreflective black to make them undetectable by any means other than star occlusion"

      Or, you know, by detecting the *massive amounts of heat* generated by the fusion drives. It's like a ninja trying to be sneaky while carrying an active flashlight.

    16. Re:No, dark and fast by Hegh · · Score: 1

      Except the fusion drives on the comets would make them visible as soon as you light up the fusion drives. At least, if anyone is watching... http://www.projectrho.com/rocket/spacewardetect.php#nostealth

      --
      Bravery is not a function of firepower.
      ~J.C. Denton (Deus Ex)
  150. The war is already on... by Anonymous Coward · · Score: 0

    Probably a lot like what you see right now. Satellites loaded with nuclear and biological weapons, spy satellites sniffing communications, foreign governments hacking into global positioning satellites, remote controlled robots (UAV) using satellite links, etc. I'd add kinetic weapons, e.g. weapons whose impact is delivered using merely the acceleration forces of reentry.

    If you're instead asking the entirely hypothetical, what would space warfare would be like if we had an extraterrestrial adversary? I would probably invest in high powered lasers / particle beams and avoid building costly ships that make nice big targets. You could argue the same thing about our current navy, that they invest in big fancy ships that would be useful if we were fighting WWII again. But, scenarios have changed and the navy doesn't want to give up its large battleships and aircraft carriers, even though they know they would stand a chance against smaller, faster, less armored, craft laden with explosives. The term for this is asymmetrical warfare, and I think it probably applies in space warfare even more so. For example, a nation can build a giant UAV fleet, just to see it turned on them by one rogue hacker. That's the fear after Iran acquired one of the U.S.'s stealth UAV, and probably the only reason that we're even escalating sanctions against them suddenly. There is a more immediate fear that they'll develop their own undetectable fleet, which scares Europe and western powers equally. The same kind of fears exist in the space sector right now, China has been testing methods of destroying and interfering with satellites for the war they know might one day come.

  151. C'Mon by Anonymous Coward · · Score: 0

    You guys are dorks.

  152. Invisible and Loaded with Obstacles by Anonymous Coward · · Score: 0

    Firstly, attack spacecraft would be unmanned. A pilot would not contribute any value to a warcraft in space and keeping him alive would be a drag on the mission. The unmanned craft would also be used as a kamikaze strike weapon, using its last bit of fuel to ram itself into any possible target. More on that later.

    Space flight above low earth orbit is basically ballistic. Current spacecraft can't easily change flight direction or speed (until a nuclear powered VASIMR rocket system is actually put into use), so it would be relatively easy to track and determine the flight path of any vehicle in space. Tracking the targets path would allow for ground base rocket attack. The warhead would probably be nuclear to ensure a large blast radius destroyed the target. It's unmanned space war, so why not. To counter this, spacecraft would have reaction control thrusters to change the crafts orientation, and several "one time use" chemical rocket tubes that would allow for several controlled evasive maneuvers or offensive strikes. Chemical rocket course changes would be directly limited to the number of chemical rocket tubes the craft had. Use one, and it's not available again. The only way to cause a spacecraft to make significant and rapid evasive maneuvers would be with chemical rockets tubes. The last rocket tube would be used for a kamikaze attack on any available target.

    Knowing where your enemy is going be located at any given time will mean that ground-based or space based high-energy weapons would be used against a target. Why not put a terrawatt laser beam on a target from the comfort of your own country. It's worth a shot. The enemy will try to negate the attack with highly reflective hulls. Reflective and controlled craft rotation would probably defeat ground based energy weapons, but who knows for sure. Range and atmosphere are a factor. A nuclear powered VASIMR rocket with a high energy laser platform would win the war. Until then

    If you can't shoot down an enemy craft with a land launched rocket, you can throw crap in the ballistic path of your enemy. It's a good way to throw off their game. Again, tracking the enemy in space might be pretty easy, and moving around randomly in space is hard. I think you'd see net deploying rockets fired into space, lingering in the enemy's flight path until contact. If the enemy slamming into the net didn't destroy it, changing the crafts total mass would confound ground based operations. You can't accurately steer something in space if you don't know how much it weighs. You could also throw a capacitor into the net so that it would "zap" anything that it came into contact with. Adhesives on the net might also interfere with deployable weapons on the platform.

    I think a current space war would look like a slow motion rocket war. Pretty quickly, we'd decide that the most effective way to win the space war would be to hit the enemies Command and Control locations on earth.

  153. in fiction by Anonymous Coward · · Score: 0

    I thought C.J. Cherryh's "merchanter" novels did a good job of treating this, particularly the first 3 (Heavy Time, Hellburner, and Downbelow Station).

  154. delta-V, gravity, Lagrange points, time by cyberfringe · · Score: 1

    Space combat, to the extent that weapons would need to be brought within relatively short distance to a target and positioned, might be somewhat like combat between the great sailing ships. Instead of the wind, a ship would need to work with -- and against -- gravity. Changing orbits requires a lot of energy to apply well calibrated force in a given direction. This speeds up the ship, slows it down, etc. It takes lots more energy to change an orbit out of the plane of the Solar ecliptic. We typically refer to these energy requirements in terms of "delta-V" which means just what you think it does. Knowing how to wisely spend the energy on board to bring your ship into firing position would be a fine art of combat in space. Skillful energy management means knowing how to navigate by using single and multi-body gravity to your advantage because that can give you essential free delta-V (e.g., like the various "slingshot" maneuvers deep spacecraft now use to get to the outer planets). The Lagrange points around every massive body (there are 5) are points of gravitational equilibrium. Something positioned there doesn't move (much) relative to the nearby mass bodies. L points can also be orbited in various ways. The lowest energy trajectories in the Solar System are between Lagrange points -- but that can take a long time. Fast, more direct routes take much more energy. How long can you accelerate? How long should you coast? Interplanetary navigation is extremely hard and not many people in the world today can do it well. Combat would be a chess game of picking trajectories, changes in orbits, keeping options open as long as possible so not to tip your hand to the enemy, and feints to mislead them about your intentions. Once committed, it is likely that many engagements would be very high speed passes. So fast that human reaction time would be far too slow. That means the ballet of space combat would be worked out well in advance and handled in real-time by computers, along with any contingent actions requiring speed. Another key point is that with the distance between ships in deep space necessarily come light-time delays. Two ships separated by a distance on par with Earth and Jupiter would experience a one-way light time delay of around 9 hours. That means they are seeing what the enemy did 9 hours ago! So predicting an enemy's moves is very important -- and very hard. Firing ballistic kinetic weapons at a distance would be EXTREMELY problematic, although if you could predict where a ship would be a kinetic weapon would do massive damage due to the relative velocity involved. Energy weapons might very well deplete your total energy for maneuvering, so that is another tradeoff to manage. So I agree with other posters -- space combat would be mostly very boring for everyone apart from the planning of the engagement and the actual firing of weapons -- possibly being on the receiving end of weapon effects. Great topic!

    --
    There's no sense in being precise when you don't even know what you're talking about. -- John von Neumann
  155. Mass Effect's version of space combat by Anonymous Coward · · Score: 0

    This isn't a perfect example, but I was always impressed with Mass Effect's take on space combat. It isn't officially "real" since it is technically sci-fi, but it as close to real of sci-fi I have ever seen. The only real "sci-fi" part is energy shields and an element called "Element Zero" or "eezo" that changes the mass of an object based on positive or negatively charged electrical current. Once you allow for that bit of suspension of disbelief, than all of their space combat makes sense from everything else we know about physics in real life.

    See http://masseffect.wikia.com/wiki/Codex/Ships_and_Vehicles#Space_Combat:_General_Tactics and the surrounding topics:

    Opposing dreadnoughts open with main gun artillery duel at EXTREME ranges of tens of thousands of kilometers. The fleet close, maintaining evasive lateral motion while keeping their bow guns facing the enemy. Fighters are launched and attempt to close to disruptor torpedo range. Cautious admirals weaken the enemy with ranged fire and fighter strikes before committing to close action. Aggressive commanders advance so cruisers and frigates can engage.

    At LONG range, the main guns of cruisers become useful. Friendly interceptors engage enemy fighters until the attackers enter the range of ship-based GARDIAN fire. Dreadnoughts fire from the rear, screened by smaller ships. Commanders must decide whether to commit to a general melee or retreat into FTL.

    At MEDIUM range, ships can use broadside guns. Fleets intermingle, and it becomes difficult to retreat in order. Ships with damaged kinetic barriers are vulnerable to wolfpack1 frigate flotillas that speed through the battle space.

    Only fighters and frigates enter CLOSE "knife fight" ranges of 10 or fewer kilometers. Fighters loose their disruptor torpedoes, bringing down a ship's kinetic barriers and allowing it to be swarmed by frigates. GARDIAN lasers become viable weapons, swatting down fighters and boiling away warship armor.

  156. Re: Humans of no? by Creepy · · Score: 1

    But it will be bot vs bot. Humans will be obsolete and, if involved, mopped up in the cleanup part of the battle. The bots won't even be built by the humans, they will be designed and manufactured by other bots. The bots can be superior just by being able to survive 300G dodging without becoming a pile of wet goo (unless an inertial compensator is created, but so far that is more fi than sci).

    OTOH, the bots may be smart enough to know they are outmatched and just suicide or run and let the other bots destroy the humans. Either way, the humans that winning side wanted dead will be dead. Plus the bots won't have any qualms about genocide, and will just cut down any humans attempting to surrender, so cleanup is nice and complete (unless they're AI powered, in which case anything goes).

  157. My guess by Anonymous Coward · · Score: 0

    My guess would be RPV's and autonomous kill vehicles launching weapons at each other until they are either destroyed or run out of ammunition. Tactics and technology will change dramatically but I think space "fighters" won't be much different than the current Predator drones used in Afghanistan.

  158. Space combat - no stealth, lots of missiles by qeveren · · Score: 1

    Space combat will probably be kinetic missile bombardment at exceptionally long range, while ships continuously manoeuvre to take advantage of the lightspeed delay in signal times to avoid incoming fire. Medium-range fighting might include lasers (particularly x-ray lasers if they can be made feasible) or particle beams out to a few light seconds, but kinetics will still rule. Not really sure if it would make sense to armour space warcraft; at space combat velocities, any kinetic weapon impact would likely mission-kill any target. It's possible I guess to try to armour against beams/lasers, maybe hide the crew module deep inside the fuel or something.

    Planetary defense will be tricky, since anything in a predictable orbit is a sitting duck at practically any range, especially the planet itself. Massive orbital swarms of small defensive weapons, maybe? I'd sure hate to be living on a planet in a hot space war. :(

      No stealth, no fighter/bombers; both are pretty much unfeasible in space. Stealth just can't meaningfully be done, and fighters are better replaced with missiles or drone missile-buses.

    --
    Don't just stand there, get that other dog!
  159. Earth's Defence by avandesande · · Score: 1

    A scaled up version of the LHC (Large Hadron Collider) on the dark side of the moon, superconductive without cooling and free vacuum.
    The one on earth will penetrate 45m of copper.

    --
    love is just extroverted narcissism
    1. Re:Earth's Defence by catd77 · · Score: 1
  160. Chaff by Anonymous Coward · · Score: 0

    I would think that the first thing that will happen when a war breaks out, is the side with the current space-tech advantage would distribute vast clouds of radio reflective foil into orbit. Tiny bits and pieces of foil that are not particularly threatening to existing assets but will prevent any practical ASAT attacks against satellites because they obscure the legitimate targets with false radar reflections. Then park a few boats full of patriot-like missiles off the west coast of whatever land mass your enemies control to take out any new satellite launches as they are launched.

    Watching for clouds of orbital chaff would be your first clue that someone's about to stir up some trouble.

    In the event that we have say a large self-sustaining presence on Mars who decides that being ruled by and Earthling 15 light minutes away is intolerable and declares independence, then current or near-future technology isn't going to provide for a means of adequately resupplying an invasion force. With no means to see the war to an end by occupying your enemy's territory, there's no point starting it. Let them be and make some trade agreements so that we can still be friends with the 3-breasted hookers. We can throw nukes or space rocks at each other but that would serve no purpose in the end unless it is a war of annihilation.

  161. Space combat would be terrible by OrangeTide · · Score: 1

    The debris fields would further delay humanity's entry into space, perhaps by as much as a century.

    --
    “Common sense is not so common.” — Voltaire
  162. Astronauts vs. Astronauta by Anonymous Coward · · Score: 0

    A bunch of shuttle bound astronauts, floating in a loose formation towards a bunch of space station bound astronauta, floating to meet the astronauts. Everyone is equipped with lasers and a lonely British secret service agent is saving the world on the station, fighting with the troops of an evil genius trying to create a new world order. The agent is getting some help from a really big man with metallic teeth. That's it.

  163. It would be boring by Spy+Handler · · Score: 1

    Given our current technology and potential near-future technology

    There wouldn't be any capital ships, cruisers, fighters or bombers. You'd just see some Apollo or Soyuz-like capsules and they'd fire a missile which guides itself to the target. Except, the missile wouldn't look as cool as the air-to-air missile footage you see in Top Gun. You wouldn't even see a fireball when it hits the target, it would just be a kinetic kill vehicle.

    Now if you say "500 years in the future" instead of "current technology and near-future", things could get different. Shields and anti-gravity drives make capital ships possible.

  164. giyf by Tom · · Score: 1

    You didn't really Google.

    If you had, you'd found plenty of sites like this one (use the nav menu in the top-right corner, the navigation on the site is whack), which discuss the topic ad nauseum und link to even more sites that do even more of it.

    I doubt there will be anything in the comments to this story that you couldn't find there.

    --
    Assorted stuff I do sometimes: Lemuria.org
  165. 2012 called... by xded · · Score: 1

    We're talkin what battles will be like in 100-200 years. Not in 2012 when these things already take months.

    1. Re:2012 called... by geogob · · Score: 1

      Let me quote TFA/TFS :

      Given our current technology and potential near-future technology, what would a future space battlefield look like?

      Anyway, reading most comments here, I think a lot of slashdot poster confuse 100 years with 1000 years - not that I blame them. After all, we should all fly around in our atomic powered hovering fords by now. So they said, back then.

      Foreseeing the future is very difficult. It's easy to let its imagine run while. Just read this thread through.
      I find the best way to see clearly is to reduce speculation to a minimum and stick to what you know.

  166. Haha, I can imagine it now... by Anonymous Coward · · Score: 0

    Heroic Chinese space jockeys piloting the most advanced Chinese built space fighters duke it out with heroic US space jockeys piloting the most advanced Russian built space fighters.

  167. Real space combat? That is easy. by Lumpy · · Score: 1

    considering we do not haveany particle energy weapons or lasers that are worth a damn, you would have missiles and projectiles. Missiles being preferred as they can be jettisoned and self propelled and will not affect the trajectory horribly like a projectile weapon will.

    For example, the navy's new rail gun, if fired from a ship 10 times the mass of the ISS, it would significantly thrust the ship. Enough to fling people inside against walls.

    Now a good defense against high speed missiles would be simply throwing sand out. the missiles would hit the sand and detonate, and any heavy hyper speed projectile would ablate significantly.

    This is assuming you can have ANY armor at all. current space tech? hyper speed BB guns would destroy each other easily, or simply send a flack missle to explode into shrapnel in the trajectory of the target and let them get shredded.

    basically right now space combat would be over quickly. the first to not dodge a small missle will be dead.

    --
    Do not look at laser with remaining good eye.
  168. over by Anonymous Coward · · Score: 0

    No one is asking over what they would fight?
    I would understand weapons aimed at a planet but why would you fight directly in space? What is worth protecting *from* there?

  169. Re: Humans of no? by ceswiedler · · Score: 1

    One fleet moves to threaten civilians (city, planet, moon, asteroid, space station). Another fleet moves in to defend. Neither fleet needs to be manned. The winning fleet has control over the civilian area.

    The idea isn't that civilians won't be threatened, it's that military personnel won't be doing the fighting directly.

  170. Where? by raehl · · Score: 5, Insightful

    Barring a completely different future propulsion system, everything in space is either in orbit, on its way into orbit, or on its way back to Earth. Current space ships have extremely little ability to adjust their trajectory on more than a very occasional basis.

    So, for any near-earth combat, one would simply launch a missile from earth or a high altitude aircraft to destroy the target in orbit.

    For combat near another celestial body, you would probably just toss some marbles in the other party's orbital path.

    If you can get there. If something is in orbit around the moon, the only thing capable of touching it will have to get to the moon first. And that's not an action that happens on a whim.

    For any extra-orbital combat, relative speeds and distances between objects are likely so great that there isn't any combat at all.

    1. Re:Where? by God'sDuck · · Score: 4, Interesting

      Current space ships have extremely little ability to adjust their trajectory on more than a very occasional basis.

      Yes. And assuming you have a laser or relativistic weapon, even with an amazing ability to dodge, the first to detect will fire and "simultaneously" (from the target's perspective) obliterate the target before the target notices they are even under attack. I'm assuming near-term space combat would be decided by stealth, not firepower: anybody detected is destroyed. Probably the only way to return fire would be to have drone fleets surrounded by dust, so that somebody survives to see the laser passing through the cloud and get some sense as to the direction it came from.

      Also, it's possible that any significant combat in orbit would destroy everybody involved: see Kessler Syndrome/ablation cascade.

    2. Re:Where? by delt0r · · Score: 2

      There ain't no stealth in space. The site has a lot more interesting things about the topic at hand.

      --
      If information wants to be free, why does my internet connection cost so much?
    3. Re:Where? by vmaldia · · Score: 1

      stealth is extremely difficult in space. space shuttle maneuvering thrusters are detectable from the asteroid belt. http://www.projectrho.com/rocket/spacewardetect.php#nostealth

    4. Re:Where? by Magada · · Score: 1

      All-aspects stealth is impossible, and not just in space, anywhere. It may be possible to throw a shadow, though, and/or use meta-materials to make like you're transparent - when viewed from certain angles in certain portions of the spectrum, that is.

      What I'm saying is against an unsophisticated adversary you may just get away with just a chilled blanket held in front of you on coat-hanger wire and a slightly more sophisticated one MIGHT be fooled by adding some fresnels or even something to _simulate_ the starfield behind you.

      "oh but this is useless unless you're coming at me head-on". Yes, it is, but space is so god damn big that if I come from even moderately far away (Europa to Earth, say?) I'll be a very small spot in your detectors FOV for a very very long time (months? years?).

      This is all shit, of course, if you pepper space with networked sensors. Of course, I can (try to) do the same, relativity plays a role, you need to get them there in the first place, if I can find them I can shoot them, which in itself is an indication that a game is on etc etc.

      This is also shit for avoiding active sensors, but if I get radiation from an active sensor I can shoot at it way before it sees me (space is big, I have seconds to act, at least, before the return arrives back home) much like with subs and active sonar. Bi- and multi-static radar systems etc etc etc.

      Turtles all the way down, much more like current air defense grid vs bomber force dynamics than air to air combat.

      How far can you extend your passive sensor net? How stealthy/survivable is it?

      --
      Something bad is coming when people are suddenly anxious to tell the truth.
  171. Read Alastair Reynolds to get a good idea by Anonymous Coward · · Score: 0

    Read Alastair Reynolds books and you'll get a pretty well educated guess.

  172. strategy by martin-boundary · · Score: 2
    It seems to me there are broadly two reasons for battles in space. You're either sending weapons to attack some location, or you're sending weapons to defend a location.

    In terms of war, the main location of interest is Earth, so battles would be in earth orbit, not deep space. The other locations of interest are asteroid fields, for mining. Planets are uninhabitable, and the gravity wells surrounding them are too expensive for resource extraction.

    Because asteroid fields are large and asteroids are plentiful, battles there would be unlikely - the attacker would need too many weapons to cover the field, and the defender could hide too easily.

    Cheap transport to Earth would depend on gravity slingshots and Lagrange points, which move about and change as matter circles the sun. Those would probably not be good locations for battles - even if they were, what would be the point? The resources sent from the asteroids would still have to travel to Earth whoever was winning.

    So it would most likely all be battles in Earth orbit. Since sending material up into space is expensive and even then it's going to be low volume, whoever can deploy weapons first should have a strong advantage. Then it's a game of king of the hill.

    If a nation controls Earth orbit first, then it can threaten other nations that might want to go into space. Any other nation that tries to build launch capability would be targeted easily and bombed. So having a space battle to wrest control of Earth orbit will be a low success proposition.

    I suspect the most likely "space" battles would be terrestrial. If the enemy can invade the king's land/take control of the king's assets, electronically or economically or politically, then they'll get the space weapons for free and become the new king. At that point they can send their own weapons up safely to upgrade or modify the system.

  173. On-rails shooter by Anonymous Coward · · Score: 0

    That is why everyone would complain about how boring it is.

  174. Ral combat. by WhiteStarTech · · Score: 1

    I once read a great paper on space combat, one of the biggest problems it said there would be is finding the enemy, think WW2 submarine combat only moreso as the ranges are huge.
    Then there is space junk and maneuvering, we must assume some kind of kinetic shielding otherwise a hick with a shotgun and a space suite will be the winner. So with Shielding we are left with mostly beam/partical weapons.
    Second would be the SIZE of the wepons, more likely is one super weapon running down the spine of the ship and a few missiles/anti-missile mass drivers. Once you have a spine mounted weapon with range such as a laser you get issues with travel time, you have to estimate where they will be in one or two seconds. If they are trying to close range they are an easy target so ranges will likely be measured in light seconds or minutes.

  175. speed limit by cifey · · Score: 1

    If there isn't much to slow you down up there why does everything take so long?(like getting to the moon or mars etc.) Are you limited by the speed of the thruster explosion? Or does it just take most of the time getting out of earths pull?

    --
    Hello Cruel World
    1. Re:speed limit by esampson · · Score: 1

      Because everything is so far apart.

      Seriously. Ignore for a moment any questions about energy or mass. The distance to the moon is 384,403,000 meters, give or take. At 1G you accelerate at 9.8 m/s. This means if you fly straight to the moon (or to where the moon will be when you arrive) under 1G of acceleration you're looking at about 2 1/2 hours to get there, at which point you plow into the moon at some god awful speed because there's no way to slow down in time. Assuming you only accelerate half the time then turn around and decelerate the remaining half so that you arrive at something approaching a sane velocity it would take about 3 1/2 hours.

      That's an awful long time in terms of combat and the moon is incredibly close (if you are considering targets like Mars). Sure, it is incredibly fast in comparison to our current technology but a lifetime when people are shooting at you.

      (N.B. The numbers provided are 'back of the envelope' calculations. The actual time would be quite a bit different because you could accelerate faster as you clear Earth's gravity well since a 1G acceleration would mean the astronauts would be subjected to 2G's on the ground. Assuming you were staying at a constant 2G's of force on the passengers your acceleration would increase the further you got from Earth until you reached your halfway point. However the math to deal with all of that is way, way to ugly for me to even consider right now).

  176. A Lot Like Napoleonic Naval Combat by medcalf · · Score: 1

    The first thing to do is constrain the question. "What would naval combat look like" would have a very different answer in 500BC than it does today. So let's assume that you mean, in the next few years.

    The battlefield has the characteristics that movement is free, but acceleration is generally not; there is a complex set of small accelerations constantly acting on the combatants, and those forces are constantly varying with time; the environmental accelerations get substantially larger as the combatant's proximity to a large body increases, and also substantially larger as the combatant enters any atmosphere (and the closer in, the denser the atmosphere so the larger the acceleration); vision is essentially unimpeded except in the vicinity of relatively large bits of debris (somewhat larger than the combatant vessels); detection is simple because all manned or powered objects will radiate heat, and that cannot be particularly well masked within the laws of thermodynamics and both human and machine endurance. In the near future, we will not have the ability to accelerate for long periods of time or at high rates, except downwards (towards a reasonably close planet or star), because chemical and nuclear rockets have to carry fuel, and other known methods of propulsion (such as solar sails or electric propulsion like ion engines) generate low levels of thrust.

    These characteristics favor a few combat methods. Long-range rockets, probably with warheads of some combination of boulders (resistant to weapons trying to destroy them) and pebbles (also resistant to being destroyed, and capable of doing damage over a broader area, but potentially could be armored against), would be the major weapons systems. Most likely, these would involve a short, fast boost followed by a long coast with the booster discarded, followed by last-minute maneuvering to hit the target - all of these characteristics intended to make the weapon less visible, and thus the reaction too late. There are some circumstances where rail guns or even low-recoil gatling-type cannon might be handy, such as in close-in combat around asteroids/planetary rings.

    Because ships can be detected a long way off, but maneuver takes a lot of time (because acceleration costs heavily), it's likely that most of the combat will be very slow by modern standards. It might take days for two ships to fight a battle, with long range shots starting the action, followed by closing slowly once the long range ammo was gone, followed by either boarding (think like the boarding pods on B5 that attached to the hull and then burned through) or the aforementioned rail guns or other kinds of small, fast ballistic projectiles. Mines would be immensely popular, because they use almost no power and thus generate almost no heat. If they only transmit, and do not receive, their radio signature would also be quite small, so they would be very difficult to detect, but could still be command as well as proximity detonated. They would probably be nuclear, because that would increase the destructive radius substantially (especially from radiation and EMP effects; blast would be a minor issue unless the mine was right on top of a combatant, because there's no fluid medium to transmit the pressure).

    So basically, in the near future, it would likely look a lot like Napoleonic naval combat.

    --
    -- Two men say they're Jesus. One of them must be wrong. - Dire Straits
  177. The easy way by clovis · · Score: 1

    You by studying the target planet. Find or create a favored group of people. Inculcate them with the idea that they deserve their position by their being a better class of people.

    Make them wealthy and assist with their gaining control of the natural resources and financial system as much as is possible with local resources.

    Your next step is by loaning the target planet money to purchase off-planet resources, pump up their economy so everyone is relatively satisfied and dependent.

    Find someone to blame, crash the economy and step in to gain ownership of as much as possible of what's left.

    If war breaks out, or insurrection, you may need to sell weapons to the various sides to regain your investments while wating to gain control.

    Raise the prices of what you sell and lower the prices of what you want to buy.

  178. GUNDAM!!! by Anonymous Coward · · Score: 0

    Big Flying Robots with big lasers and wierd haircuts with lots of Romance and drama involved. Also, the average troopers can't make a hit for his life.

  179. All about the optics by kryzx · · Score: 2

    My aunt was in Iraq with the army the first time around and had a good story. She described a US armor force who had detected a line of Iraqi tanks and decided to engage them. They took out the first one in the line, then the second one. The Iraqis couldn't see the US tanks, so they had no idea where the fire was coming from and therefore couldn't return fire. After tank 1 and tank 2 blew, the US forces could see the guys scrambling out of tank 3. They gave them a few seconds to get out and get away then blew the tank, and so on down the line.

    The lesson is, the force with the better detection/sensors/eyes can engage an enemy before that enemy even knows there is a fight, provided their weapons have sufficient range. A slight edge in information becomes overwhelming superiority.

    Applying this to space, if we have two opposing forces, and one has a Hubble telescope level optics capability where the other doesn't, those with the capability will be able to engage in the fight at a much greater distance, and pick off the adversary at will.

    Of course they will need an advantage in weapons range, too. In space you can't afford to use up your limited mass to attack, because sooner or later you'll run out, and it will affect your trajectory. It will be all about energy weapons, including lasers. And making those effective at distance is also dependent on your optics.

    So, optics for observation and optics for achieving high range with energy weapons leads to force superiority in space.

    --
    "I don't know half of you half as well as I should like, and I like less than half of you half as well as you deserve."
  180. i have seen it already by Anonymous Coward · · Score: 0

    Its your standard battle field only on a grand scale. Its the "good" guys in one formation, "bad" guys in another formation....fight!

  181. Re: Humans of no? by Anonymous Coward · · Score: 0

    Basically the concept of space war is a little ridiculous.

    See if you still feel that way in 25 years when China has a military base on the Moon.

  182. Two good accounts by paulxnuke · · Score: 1

    The comparison to submarine warfare is apt: it's very much like a very slow and deliberate team video game (a very old school one, though), where the enemy is never real (in the sense of an aerial battle), it's just a number on a computer display or a mark on a sheet of chart paper.

    My two entries are:
    The Forever War, a mention of the ship's computer playing mathematical games with the enemy's ship's computer (IIRC; at work.)
    and
    Heinlein's Citizen of the Galaxy: the description of a battle between a freighter and a raider is probably going to be very true to life. It' all about intense pressure as the enemy closes to weapons range (nondestructive; they're slavers) and the freighter scrambles to target them with a nice big nuke (they not after plunder.)

  183. unmanned by Anonymous Coward · · Score: 0

    1. First of all, why? Of what value is there in controlling a particular volume of space? Where are the high value volumes? Do you want to deny them to the enemy or occupy them yourself? There's a lot of nothing out there that there's no particular value in protecting. A lot of current military philosophy revolve around controlling areas, which may be of little value in space.
    2. Then the point is to attack space craft. At least for the moment, ridiculously easy to locate and track. Because of the cost of maneuvering, combined with the fact that there's really no place to hide, easy to intercept by a small kinetic weapon, which at high speed could destroy an entire spacecraft. And everything in space is at high speed. You don't have to blow the whole thing up, you just need to damage a critical piece.
    3. Area denial would involve large swarms of space junk rendering a volume unusable in any way, at least until the junk goes elsewhere. Also nano space dust designed to attack space lubricants and seals.
    4. Heat dissipation is an issue. If you can concentrate heat on an object you can destroy it. Understand, in space, destroy means a minor hull breach or deformation of any critical component, or permanently damaging some electronic component.
    5. Beam weapons would focus on one of two things: damaging structural integrity or damaging electronics.
    6. Explosives would be totally unnecessary, and too expensive to move around, compared to kinetic weapons. If anything, they would be used to generate a shrapnel cloud for area denial. Really, a very small amount would be required for this.

  184. Combat in Earth orbit wouldn't be a good idea by bjdevil66 · · Score: 1

    My only thought was that space combat in Earth orbit with physical weapons/craft would be a terrible idea, no matter what weapons were used. The remaining, kinetic energy filled space debris (used non-energy munitions, shards of spacecraft, a crewman's dead finger, etc.) would turn that area of space into a mess of flying death, one fleck of paint at a time.

    Aren't there still pieces of debris from that Chinese anti-satellite test a while back?

    1. Re:Combat in Earth orbit wouldn't be a good idea by mbone · · Score: 1

      Aren't there still pieces of debris from that Chinese anti-satellite test a while back?

      Yeah. Most of there are still there, 800 km up, and are likely to be there until somebody cleans up the mess.

  185. I'm guessing very dull by Karmashock · · Score: 2

    The big issue with space combat is that to move you need to spend reaction mass. That means moving around a lot is prohibitive. Further, that same constraint is going to ensure that whatever is fighting is either going to be very light weight or very heavy and completely static.

    The best defense since mobility is off the table will likely be stealth. Which means even less moving since thrust can probably be detected and any heat generation will also be detectable. All combatants will have to be thermally neutral and either radar invisible or camouflaged as debre or rock.

    As to weapons, the method is less important then the nature of the attack. Because the best defense is stealth it stands to reason that any aggressive action will render the attacker visible and thus very vulnerable. Thus any attack must be instantly lethal so the craft or station can destroy it's enemy before a counter attack. Or in the case of multiple combatants... so it can fire before being destroyed by an enemy ally. There are a couple ways to survive the process of attacking. One might be to fire and then immediately relocate just enough to avoid a counter attack. If you're fairly stealthy to begin with they may only be able to detect you when you fire. A better method might be "throwing" stealthed missiles or disposable drones out of a carrier and then having them launch. The command ship remains stealthed and it's position is not given away by the activity of the drones/missiles.

    An incoming missile would be very hard to hide. For one thing, we can assume it has some kind of compact high velocity engine and it's unlikely to be very stealthy since that tends to require mass and caution. There is no meaningful "air" resistance in space, so you could have a big thermal umbrella in front of the missile that obscures a heat trail from a single target if you bare directly on it.

    Sensor systems will of course be predominately passive, distributed, networked, and likely will communicate through tight beam laser link. A fleet of ships should share their collective sensor return with every ship and all sensor drones should be added to that picture. As such hiding anything making a lot of heat or emitting radiation should be hard. I'm guessing drone weapons will be highly disposable and likely to not survive more then a couple shots before counter attacked and destroyed. In fact, most of the combat could be drones destroying other drones.

    As to the actual weapon employed. I don't think lasers are a good weapon. Going into all the reasons is complicated but there are a lot of problems with them that are just physics. The two weapon ideas I like are some kind of kinetic weapon. Hitting things is a pretty reliable way of breaking them. And it makes Newton happy... so everyone gets an apple. That might mean a rail gun of some kind or a really fast missile. The other idea is some kind of plasma gun. This idea has some merit for a couple reasons. One, it's nearly as fast as a laser, you can't really block or deflect it hte same way you do with a laser. Maybe they could use a big magnetic field to basically create a shield? Anyway, plasma is fast and if you can actually focus it... then you should be able to melt nice little holes in just about anything. Also, it makes a crackerjack engine so you could have your own drive system double as the weapon system. Maybe have the plasma be diffuse when in drive mode and focused into a beam when in weapons mode. Anyway, either way the instant you start firing on the enemy they're going to fire back. So the question is how you survive the mutually assured destruction in that battle. Again, I'm guessing you keep your command ship stealthed and leave the killing and dying for the drones.

    A major issue for space combat will be the logistics. Really, this is the biggest problem with space ANYTHING. Just getting things up there is hard and then moving them around is hard and then doing that without being able to resupply them and if anything goes wrong everyone dies.

    I'm going to gue

    --
    I've decided to stop wasting my time responding to AC trolls/sockpuppets... so if you want a response from me... login.
  186. What the tech is matters. by Anonymous Coward · · Score: 0

    Technology is going to be the biggest concern. Unless we get much better space launch tech, we won't be able to put much up there and unless we get much better social tech tech, we dare not do it.

    At most we might get a couple of drones or a ground based laser shot or two. Otherwise its too much cost for too little gain and unlike say computers, space tech is regressing.

    With our current totem pole rockets and their somewhat more advanced sibs, we can't lift much of anything heavy so it would be a fight between glass hammers, you can't hide in space and you have no armor.

    On top of that it is highly risky, not only is there little fight over as of yet we risk orbital strikes and/or a Kessler Event with loss of access to space and satellites (i.e a civilization ending move)

    Worse much of the more advanced tech we are looking at for propulsion cannot be managed safely by our current social systems. We can't keep fission reactors in advanced countries from overloading or being flooded or deal with the waste. I find it hard to think that we could handle antimatter rockets or nuclear pulse rockets safely any time soon.

    Lastly, where is the money going to come from?

    Unless we have a real breakthrough we face serious energy and material constraints. These are not going to go away. Heck the advanced civilizations all have population decline, many cannot distribute wealth well enough to sustain their population numbers (i.e unemployment leading to population shrinkage ) Unless some means of changing that occurs, in the time frame we are looking for more advanced technology to come on line, well the human race will be far poorer and very possibly older and less numerous. Well except for place like Sub-Saharan Africa but they aren't to universal running water yet much less rocketry or space war.

    Now given some progress in every and the avoidance of a resource war and the avoidance of any nation state war (assuming we still have nation states by than) going nuclear, we could get a scrap in space. Over what I do not know, we really can't get there from here but ignoring that, we might get a scrap. It would probably be a quick drone fight to clear a particularly desirable resource rich area or possibly a coupe of prospectors taking potshots at each other with shotguns or maybe lasers or something.

    A bigger war is just unlikely

  187. Also very underhanded and sneaky by Anonymous Coward · · Score: 0

    Some things may be very sneaky too. You don't always want an attack to be obvious that it's an attack.

    So you might have some drones that work like sappers. Instead of outright shooting something and exploding a ship you could use limpet mines. Or if a mine is too messy in orbital space, a simple thruster attached where the enemy doesn't want a thruster would do. This would give a nice strategic advantage which could be deployed at a key moment if necessary.

    Alternately, you could expose an enemy spacecraft to compounds that would compromise its structrual integrity. Chemicals which are corrosives or amalgam forming compounds with the hull material of the targeted spacecraft. (So you either rust/etch part away or cause severe embrittlement.) It's not going to be much more detectable than a collision with naturally occuring micrometeorites, and may not be noticed as an attack. In the case of a chemical attack, it's likely the heat of the sun would speed things up and once in the sun long enough that's when the damage would occur. They also may achieve results hours or days after hitting, such that the two events may go unconnected. The enemy would only see an unexpected structural failure either occuring due to onboard pressurization, or happening during activation of a thruster or similar control mechanism that produces structrual stress during operation.

    At least these are the kinds of space weapons I envision in the near-term, where nobody wants to let anyone else know they're getting the upper hand while space is supposedly not being weaponized.

  188. All Materiel is subject to the laws of economics. by w3woody · · Score: 1

    All military equipment is subject to the laws of economics: each piece of equipment, from guns to tanks to aircraft carriers are subject to tradeoffs between weight, power, size, affordability and lethality--which is why, for example, the U.S. has a variety of different sized ships with different functions, rather than just floating a few thousand general-purpose aircraft-carrier sized ships that do everything.

    So when envisioning space war, it's going to be the same sort of tradeoffs dictated by economics and by physics: very large, heavy and well shielded (read: very think bulkheads with lots of iron) ships that serve as carrier vessels and the like, surrounded by a periphery of smaller ships which serve as a sort of "forward guard" to the heavy capital ships, in much the same way that a U.S. aircraft carrier sails with a whole bunch of support ships.

    Further, because blowing something up will always be easier than guarding something, the things that will deliver bombs (small airplanes) will always be smaller, lighter and more maneuverable than their (much much much) bigger targets. That's especially true in space, where you don't need to run your thrusters continuously, but can just be carried along by momentum. And because life support is going to be very expensive (since you have to carry everything with you, not just food and power, but air as well), and (assuming there is no artificial gravity) only the large capital ships will be able to spin like a top to simulate gravity, most of the smallest ships will be cheap drones. (In fact, I could envision a world where only the largest capital ships carry people, mostly marines, for when you actually have to put boots on the ground.)

    Beyond that, most materiel has developed over the years in response to new defensive or offensive challenges. Star-configuration castles where developed in response to heavier artillery; aircraft carriers developed when timeliness and range prevented putting planes over foreign territory. In space, I would expect a lot of emphasis on electronic and optical surveillance (especially on the forward facing ships in the outer perimeter of the protective zone around a capital ship), along with laser-based inter-ship communications (to reduce the EM footprint), and I would expect a constant rotation of larger "battleship" like ships (smaller and more nimble than the capital ships, mostly rigged with a lot of bombs) to the main capital ship, so that the crew can go back to simulated gravity on a regular basis. I would also expect high-powered lasers, very powerful railguns and other measures to throw fragments into the air in order to protect capital ships against attack.

  189. Asteroids Planetoids and energy by CAFKIA · · Score: 1

    If I were king of the forrest, here is how space travel vehicles get done. You build a relatively small submarine looking craft and then go find yourself an asteroid. The manmade portion would be mostly engine and that engine would need mass. Essentially you would ideally have a square mile or two square mile volume asteroid with a compartmentalized manufactured space ship buried into the center of it. The ship would "burn" the matter it removed to make room for the ship. You could scale up or down for size according to the purpose of the ship. Obviously the asteroid serves as protection from micrometeroids as well as intentional kinetic weapons. Plenty of room for storage of cargo or supplies or whatever and plenty of fuel. (but if you need more fuel, go find another asteroid and attach it) Battles would need to be energy weapons exclusively except for the most callous of concerns. Kinetic weapons that miss their intended target will eventually hit something. Ideally, you would have energy weapons that had multiple components that all had to focus simultaneously to be effective. However, as long as your have an asteroid to work with, there is no reason that you could not aim a stream of mass in whatever direction you saw fit.

  190. If we were sane by Bonobo_Unknown · · Score: 3

    Hopefully by the time we're advanced enough to have the weapons needed to fight a real space war we'll be advanced enough to not do stupid things like fight wars

    --
    We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
    1. Re:If we were sane by Sperbels · · Score: 1

      Why assume advanced species don't fight wars? As far as I can tell, aggressive species tend to be the most successful. Fighting each other helps us evolve.

    2. Re:If we were sane by Bonobo_Unknown · · Score: 2

      From a sample space of one, I'd have to declare that you are correct. For what that's actually worth...

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
    3. Re:If we were sane by DigiShaman · · Score: 2

      You can remove man from nature, but you can't remove nature from man.

      Love and war. It's what we do.

      --
      Life is not for the lazy.
    4. Re:If we were sane by Bonobo_Unknown · · Score: 1

      >You can remove man from nature, but you can't remove nature from man. War is not in the nature of man. At least most people in the western world don't experience war directly during their lifetimes, which suggests that violence and war are things that aren't a consequence of being human.

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
    5. Re:If we were sane by randomencounter · · Score: 1

      Violence is intrinsic in humans. We teach ourselves to control the violent impulses but for normal people the impulses are still there.

      To try to claim otherwise means you're fooling yourself or trying to fool everyone else.

      --
      Forget diamonds, copyright is forever.
    6. Re:If we were sane by mcgrew · · Score: 1

      As far as I can tell, aggressive species tend to be the most successful

      Then why are lions, bears, tigers, and other agressive species going extinct rather than squirrels, rabbits, and cows?

      "Survival of the fittest" doesn't mean survival of the meanest. It means that any species that fits well into its environment will survive, those that don't fit become extinct.

      Someone in an earlier thread talked of lions and gazelles, noting that the slowest gazelle gets eaten -- but so does the one in the lead if he's heading away from one pride and into another. The one in the middle of the herd is the one most likely to survive. And the cats hunt in packs and share the food.

      I tend to think the Neanderthals may have died while we didn't was perhaps because they lacked coherent social structures that we had. A man alone tames fire, the idea dies with him. If he teaches others, the idea lives.

      Species aren't the only things that evolve, societal norms do as well. They, like the species, evolve to match their environments.

    7. Re:If we were sane by fdrebin · · Score: 1

      Then why are lions, bears, tigers, and other agressive species going extinct rather than squirrels, rabbits, and cows?

      Perhaps because lions, bears, and tigers occasionally kill and/or eat people, and squirrels, rabbits, and cows rarely do?
      Certainly that isn't the only factor, but it has played into it over the years.

      /F

      --
      Stupidity... has a habit of getting its way.
    8. Re:If we were sane by electrons_are_brave · · Score: 1

      Yes, species that taste yummy to humans (e.g. cows) sometimes get a big survival push because we encourage them to live by selectively breeding/eating them. (Provided that the species are easy to keep - being yummy is a bad trait if you are a wild animal that doesn't suit farming).

    9. Re:If we were sane by Anonymous Coward · · Score: 0

      The Human Factor does not evolve the way technology does. Civilization is a veneer. And slavery DOES still exist (albeit less publicly).

    10. Re:If we were sane by mcgrew · · Score: 1

      Exactly. Agressive species have a hard time fitting into the world's environments (which we puny humans now control), while the non-agressive species fit their environments well. Survival of the fittest is the best fit for an environment, not the biggest or strongest or fastest or smartest species, unless these traits make a species more fit for its environment.

      Dumb luck plays a part in evolution, too. If the fastest gazelle gets its hoof caught in a hole while running from lions, he's lion lunch. If he's too young to have bred his genes are gone from the species' gene pool.

  191. Engines as Weapons? by JSBiff · · Score: 1

    This would probably not be your "primary" weapons because the fact that you'd likely have to maneuver your whole ship to aim the weapon, so might not be as convenient as lasers, etc, but. . .

    Presuming that you have some sort of fusion rocket or ion engine, it occurs to me that in a pinch, you have a very high-energy "weapon" you could bring to bear on your enemy's hull (if you are close enough - although the exhaust "tail" from a space ship's engine might be quite long), if you need to?

  192. Do you read science fiction? by Anonymous Coward · · Score: 0

    I hate to just refer to carefully thought out sources from established authors rather than follow suit and post my own less informed guesses, but the best summary is probably "The Forever War" by Joe Haldeman.

    There's some quote somewhere about how weak generals think of tactics, mediocre generals think of strategy, and great generals think about logistics. What are the implications of time you have to spend to get from point A to point B given the distances involved? What about the relativistic time dilation incurred?

  193. Years of boredom, microseconds of terror by mbone · · Score: 1

    Any true deep space combat would likely be years of boredom, interspersed with microseconds of terror.

  194. How I See It by way2slo · · Score: 1

    "Given our current technology and potential near-future technology, what would a future space battlefield look like?"

    Given Current Tech Available:
    Machine Guns, Guided Torpedoes w/ HE or Nuclear warheads, primitive rail-guns, primitive heat lasers, ground to low earth orbit booster rockets, small space shuttle, Soyuz capsules, communication satellites, ground observation and control, remote drones, micro-satellites, primitive Project Thor, IIS

    Current Space Battle:
    The goal would be to control cis-lunar space (between Moon and Earth) and would be the first battlefield of WWIII. (I can't see a scenario where the whole world puts up with someone trying to grab space for themselves.) Mostly orbital combat, with possible sub-orbital pop-up strikes. Booster rockets would launch guided torpedoes with High Explosive fragmentation warheads (steel clouds of death) at enemy targets (likely fragile communications/spy satellites) and disable them without needing a direct hit. The ISS would be turned to swiss cheese. Low Earth Orbit's space junk problem will become exponentially worse. Combat Shuttles could launch, but they would be sub-orbital or perhaps one orbit at most. The counter move to maintain a satellite presence would be to use micro-satellites to replace one large one with many "disposable" ones. All the while a crazy Electronic Counter-Measure war is going on in space to deny communications entirely and would not discriminate between military and consumer channels. Forget calling across an ocean as the world will have to fall back on copper wire or glass fiber. Eventually, it spills-over to Earth conventional war or even Global Thermonuclear War. The winner, if any at all, will be decided on the ground. The space war's most important impact will be that if one side actually does achieve cis-lunar space-superiority, the loser will be somewhat blinded and may be scared enough to start lobbing nuclear weapons around out of fear of the winner's ability to set up a Project Thor and bomb with impunity. I don't see people in space fighting it out in capsules or shuttles as they may not survive launch and re-entry without actually going into a battle.

    Near Future Tech:
    Machine Guns turrets, Guided Torpedoes w/ HE or Nuclear warheads, primitive rail-guns, primitive heat lasers, ground to low earth orbit booster rockets, small space shuttle, Soyuz capsules, communication satellites, ground observation and control, remote drones, micro-satellites, primitive Project Thor, IIS, Moon Base, Space Station at Lunar L1, L2, L3, L4, L5, Space Marines in primitive Power Armor, Lunar Tanks, fighting robots, Lunar artillery.

    Near Future Space Combat:
    The goal would be to control Earth Orbit, The Moon, and Lunar L1 through L5 and would be the prelude to Solar War I. Not sure that it will contain Global Thermonuclear War as I assume it will take global cooperation to get this far. Perhaps a limited exchange if it were a few nations making a power grab. Given the issues with radiation and micro-meteorites at the Lagrangian points, the stations would naturally be well shielded against fragmentation warheads. The stations themselves would likely be prized possessions. (if not, they get nuked using large booster delivered warheads from Earth) The Lunar Colonies would also be prized, so I would assume that nuking them would be a last-gasp "FU" from the losing side. There could be small fleets of space shuttle like warships that have machine guns or auto cannons for primary attack with the ability to carry a limited number of small guided torpedoes with frag/HE/nuke warheads. I would imagine that these craft would be well heat shielded for earth re-entry so heat lasers would have little to no effect on them. Battles between fleets would be long looping orbits with combatants sending fire at close approach moments possibly days apart in low earth/lunar orbit and even weeks apart if in high slow transitional orbits. Machine gun turret fire could be used as

  195. A bit broad by esampson · · Score: 1

    Not sure if anyone else has posted this since a 'space combat' thread on Slashdot generates so much traffic it seems as if it should crash the servers (Dude, I heard you liked Slashdot....)

    Anyway, it's kind of hard to talk about what 'space combat' will look like since 'space' is simply the theater for the conflict to occur in. Its like asking what 'land combat' looks like. When? 2012? 2025? 1942? 550 A.D.?

    You probably need to start of with some assumptions concerning your technology. Lasers are a big one. I am not a laser physicist but as I understand it there's certain maximums of focal range that are related to the size of the lens. As I understand it in order to focus a laser at a spot about half a light second away you would need an absolutely gargantuan lens, one so big as to be impractical for combat. Now maybe I am wrong on this but this is an example as to why using lasers over such long distances might not be as easy as some people think.

    Of course that assumes we don't find 'loopholes' around the problem such as somehow creating a synthetic lens through spatial warpage or some other technology. On the other hand if you've got some kind of technology that allows spatial warping then you quite possibly have much more effective weapons than photons.

    My guess, in shorthand, is that combat in space will bear a certain resemblance to current combat. I suspect you will see guns for a long time (when jets were first becoming widely used by the military a lot of theorists thought that guns were going to go away because of the ranges and speeds jets would be engaging at. You'll notice they are still there because it turns out that at short ranges a missile often isn't the best option). I suspect you will have lots of your 'cheap' units (infantry, drones, spearmen, etc.) backed up with heavier units (tanks, fighter planes, knights on horseback, etc.) often employed along with small numbers of 'heavy hitters' (bombers, battleships, catapults, etc.).

    The exact form these all take will be dependent upon the technology of the day.

  196. The Lost Fleet by Anonymous Coward · · Score: 0

    Someone has already worked out the details of space combat. Try the Lost Fleet book series by Jack Campbell. They are fantastic.

  197. No need by Anonymous Coward · · Score: 0

    for wars in space, the universe is big enough for us all, surely?!?

  198. Honor Harrington by gknoy · · Score: 1

    I always liked the way the Honor Harrington series portrayed space combat. Having missiles carry nuclear-powered laser warheads close to the target ship seems like it would make it a lot easier to hit a target, if your warheads had decent targeting. Granted, a lot that's portrayed in the novels is clearly science fiction, with the goal of making it seem more "naval", but still I think the missile + nuclear warhead idea is an interesting solution to the "my target is far away, and I have several seconds lag in my targeting" problem.

    Another interesting portrayal of space combat is the Bio of a Space Tyrant series, I seem to recall, but I haven't read it in fifteen or so years.

  199. Weapons that can work by Catbeller · · Score: 1

    EMP cannons. Or simple EMP emitters.

    Mirrors or plasmas can defeat low power single lasers, if the target knows it's coming. Or the target can keep changing orbit, if the attacker is far enough away to make dodging work. Come to think of it, this can be overcome by focusing hundreds or thousands of optical (green, blue, UV) lasers on one target. Uh oh. Cheap and low power can do the job. X-ray lasers would be best - no shield can stop them, unless you're in an asteroid with a few hundred feet of rock protecting you.

    Kinetic weapons moving at miles per second rule here. Return of the cannonball! Imagine buckshot of a pound per shot, fired from electromagnetic guns, moving at hundreds of miles per second, impacting the hulls... shredded wheat.

    I doubt that humans would man most weapons. Drone ships would be simpler. smaller, faster, cheaper, and more expendable. Flying EM guns and nuclear powered x-ray cannons, with radar dampening shrouds would prowl the dark, quietly.

    Drones don't need big rockets. They can spend years sneaking up on you with ion drives. Decades. Impossible to detect until they open fire.

    Ships of the line? For humans, maybe. Command and control can't really be based on a single planet. Speed of light delays... but that can be overcome, can't it...

    Some sort of manned assault frigate would be essential if your goal was less than outright annihilation. Send in the commandos, hit the right targets - that takes people and yes, ships of the line.

    Americans tend to image every space war as a reenactment of World War II - be honest with yourselves. It won't be like that. It'd be smaller, more deadly, cheaper, easier to do - if a space-based industrial economy were to do it. Earth would be a not-good place to build and maintain space... anything. Space-based economies, in rotating habitats, have it all over plantary military forces - they are on top of the hill already, and they have access to all the power and material they need.

    Communications is key to any military mission. Radio is easily detected and can be jammed. I'd say quantum entanglement is the answer here - sort of a QE telegraph. Use enormous, ordered arrays of bits, entangled with corresponding arrays at Command or other ships, and Morse code is reborn. No EM emissions, no jamming possible, no detection possible. If you want sneaky, the ghost of QE comm is just what you need.

    Other weapons: throw big rocks at them. Force majeure, the undefendable attack.

  200. Defense by WaffleMonster · · Score: 1

    Unless people are capable of being long term self sufficient outside the planet the answer to winning any space war is nuking earthly targets.

    What if you could design a cushion hull fat enough to absorb the energy of incoming projectiles or smart rocks on a collision course? Maybe some kind of molasses blob designed to transfer kenetic energy at a controlled rate.

    You could also shape the hull to have massive surface area and effecient heat transfer layers to mitigate the effects of laser attack.

    Given distances time/involved, lack of air, dust, fog and cost of propellent for offensive weapons some sort of phalanx like device might be quite a bit more effective in a space based battle cruiser.

    Before there can be a space battle there has to be something in space worth fighting over.

  201. extreme asymmetry between attacker and defender by Khashishi · · Score: 1

    I assume most conflicts will occur near a planet. One force is stationed in orbit, with support from ground installations, and another force is approaching from deep space. Confrontations in deep space generally won't happen because space is too vast, and it takes too much fuel to deviate off course to intercept an enemy. Even if force 1 is going from A to B, and force 2 is going from B to A, they can't engage each other because they are moving past each other too quickly to lock, and they can't commit fuel to slowing down.

    The defender will spot the attacker from a long distance away. The defender's larger sensors will resolve each attacking vessel. On the other hand, the attacker will only see the planet. The outcome of the battle will depend on the goals of the attacker. The attacker can bombard the planet with relativistic kill vehicles fired from a long distance, and the defender can't do much about it. But the attacker can't detect individual defensive satellites until well in range of the defender's detection, so the defender can launch missiles or fire lasers, depending on whether the attacker is maneuvering or not.

    If the goal is total annihilation, the attacker will pelt the planet with RKVs until they run out ammo, or until the defender surrenders. Perhaps, the defender has sent out its own fleet to the attacker's planet, and is similarly sieging it with RKVs. We have mutual destruction in this case.

    If the goal is more limited, and the attacker isn't willing to indiscriminately bombard the planet, then there is a stalemate. The attacker won't be able to overpower the defensive installations. The attacker could try sending automated drones or missiles at the planet, looking for installations, but the defender could probably shoot them down when they got too close. The attacker might send maneuverable drones equipped with lasers. The defender would counter with maneuverable satellites.

  202. Ender's Game by Anonymous Coward · · Score: 0

    Enough said.

  203. The last combat in the prophecy. by JCPM · · Score: 0

    In the past, a combat of prophet vs prophet, to death the loser.

    In the future, the Bible says a prophecy that there will be a last combat between the terrorific satanas and Jesuchrist on the hill of Medina during the age of Armageddon, for concluding which kind of empire will be reigned forever, either, the evil empire or the God's kingdom.

    JCPM: without Alpha & Omega, it won't be possible.

  204. Read 'Enders Game' by matsondawson · · Score: 1

    I think it covered space battles over long distance at light speeds.

  205. What it would be like: by Anonymous Coward · · Score: 0

    I did a lot of research for my own sci-fi novel, and this is what I came up with so far:

    Maneuverability: The fancy maneuvers you see in the movies would be absolutely pointless. The smooth loops and curves you see in aerial maneuvers would be impossible in space, both because you need air to push against in order to smoothly change course, and because every course correction has a cost in both the fuel it consumes and the recalculation it requires. Remember, spacecraft don't have engines that are always on, but rather change course (after recalculating) briefly and then coast along to wherever inertia and local gravity take them. "Falling off" of your gravitational current (a.k.a. entering a trajectory that carries you away from your intended destination, such as going against an orbital trajectory and thus being subject to local gravity) could be extremely costly in terms of fuel and time spent recalculating, so it would probably be more ideal to stay on course and slug it out.

    Location, location, location: It would be impractical to conduct a battle in most areas in space, as the only way you could encounter another ship is if they are travelling in opposite directions (leaving a window of only a few minutes to attack, and no opportunity to collect any spoils) or have been travelling with you the whole time (and to address the obvious objection, "catching up" to another ship would be highly impractical, as your higher velocity will require a different trajectory to get to the same place), meaning that someone wanting to attack another ship will have to carefully select where to do so. Lagrangian points (wikipedia) and planetary orbits which allow for landing (a.k.a. don't contradict the planet's rotation) would be ideal points to stake a claim, both because other ships will have to come near them and because it's actually possible to stay in roughly the same place near them.

    The fastest computer wins: To win a fight in space, you need to be able to hit the other guy while simultaneously either avoiding enemy fire or somehow blocking it. Both the firing solutions (you're dealing with distances which could range into light-seconds, velocities which could result in subtle time dilation, and local gravitational "geography") and any course corrections you make will require careful calculations, and the ship with the fastest computer will probably come out victorious.

    The weapons will be very strange to us: the traditional Earth-based point-at-something-and-make-it-die weapons won't exist in space. Remember, I said that a battle could occur at a range of a few light-seconds -- longer than the distance between the earth and the moon. That means that any weapon which throws matter at a target is pretty much useless unless it can manage speeds of .25 C or above, or if you're fighting at point-blank range. Weapons used in an engagement would probably more closely resemble lasers or particle beams, although at closer ranges you could get away with other stuff (for the story I was writing, I described a nuclear blast directed by a parabolic force field, focusing its radiation and particle discharge on a single target). Missiles would have to be fitted with extremely powerful engines and targeting computers, and would probably be impractical. On the nastier side of things, dirty tricks like spreading antimatter particles along a target's expected trajectory or deliberately saturating the area with high-velocity debris would probably even things out nicely, but doing so would render the are you're attacking essentially useless for a few weeks as your trap disperses.

    The ships would feel pretty strange, too: On a combat vessel, valuable resources like oxygen and water wouldn't be floating around waiting to be sucked out a microscopic hole or consumed in a fire. Most likely the ships would be pressurized with helium or another stable, easily compressible gas, and the crew would wear oxygen masks outside of the sleeping and

  206. i supp0se it would tend towards anticlimactic by spacetimeExecuter+ · · Score: 1

    i believe that it would be swift, mostly silent, and altogether b0ring; at least, most research points in that direction. space combat would be carried out largely through autonomous drones, n0 manned aircraft, et cetera, et cetera. however, lasers are another story. if they somehow become a viable weap0n by the time all of this is carried out, i must make several comments: 1. i would pay anything to s33 the first practice in zero g with lasers. thr33 words- idiots in space 2. depending on the range of these lasers and their effectiveness in the vacuum of space, they c0uld be super effective or not very effective at all. i won't even go int0 the ridiculously p0litical aspects of space combat, though i will say that it is 0bvious that any combat in the near future would be betw33n countries of Earth, rather than any alien race clashing with a miraculously united planet. thank y0u for your time. ~spacetimeExecuter

    --
    thank you for your time. ~spacetimeExecuter
  207. Prophecy's Last Combat Fears you! by JCPM · · Score: 0

    Aliens should be more intelligent than humans, they won't combat against humans on the Earth because Aliens deciphered Earth's prophecies that warn them the final possible consequences on the Earth as by example:

    1. 1. The Doom day, Rev 20:7 (when the thousand years are expired, satanas shall be loosed out of his prison), and the cosmic RAPTURE.
    2. 2. The Armageddon.
    3. 3. The Last Combat between the terror satanas and Jesuchrist.
    4. 4. The 4 horsemen of the Apocalypse.
    5. 5. Ending the Last Man on the Earth (see Daniel 2:35, we're in 7th of 7 epochs).
    6. 6. The End of Times and the Mayan prophecy.
    7. 7. The 7 seals of God to be the end.

    The humans did fool themselves: they didn't decipher the alien's prophecies.

    JCPM: without Alpha & Omega, it won't be possible.

  208. Re: Humans of no? by Dahamma · · Score: 1

    Drones and automated defenses would probably be the first line of battle. If they can do as good or better job as humans without loss of life, why bother with anything else? The US is already doing this in limited amounts today...

    In the end wars are about territory and resources, so eventually it will come down to invading and occupying something of value (planet, moon, space station, whatever). Space battles would just be a necessity to get close enough to the real goal to accomplish that.

  209. Didn't see this one yet by Ol+Olsoc · · Score: 1
    But the first battle in space will likely be the last. At least for a long long time.

    After a few items are hit, there will be a debris field that will be traveling in multiple orbits, and will do a pretty good imitation of high velocity kinetic projectiles. Then we have to wait until it all de-orbits.

    It would be about the height of criminality to blow up a few satellites in Geosynch orbit.

    And at the very least make it very difficult to put up new stuff.

    I suspect that most space faring countries will be a bit hesitant, given that destroying your enemy is likely to destroy or at least greatly hamper you a little later.

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
  210. I thought we'd been over this by Anonymous Coward · · Score: 0

    Heat is the biggest problem.

    http://www.projectrho.com/rocket/spacewardetect.php

  211. The OBJECTIVE of space combat by FroColin · · Score: 1

    What's being ignored here is the most fundamental aspect of space combat which is the objective of space combat. You can not discus the type of weaponry or propulsion methods with out discussing what they would be used for, the objectives they would be trying to achieve.

    Space is too big to make most types of combat feasible. If there were a war between two planets then all of the fighting would happen in or near the orbit of the planet. The primary concern of the on planet government would be the defense of the planet and the only feasible way to do this would be to put missile launchers etc in orbit around the planet, as the area that needs to be defended gets larger the further out you go and thus the resources required to keep so many outposts maned would be impossible to maintain. On planet missiles would have to go through earths gravitational pull where it is at it's strongest so it makes the most sense to have all space combat originate from the planets orbit. All ships designed to invade a planet would be designed to wage war against missile launchers and ships in the planets orbit making "space combat" more similar to air combat simply higher up.

    The attacking of passenger ships between planets, would ONLY happen once it had nearly reached it destination because it is too difficult to predict it's path through space and would be a waste of resources to send a ship to attack the ship with out any likelihood of actually hitting the ship. Thus ALL combat would be done near planets as there are no objectives in space. There is no reason for any planet to launch a large battle cruiser or space station out side of the planet's orbit.

    The most likely scenario for space combat is simply on earth as it is now when missiles could be dropped from space to land targets. All war is designed around control of land resources. An air victory is helpful to gain control of land resources or area and thus space will simply become a continuation of that. However that will all happen in orbit of the planet.

    The point is that all these discussions are mostly irrelevant because all space battles will be fought in the orbit of the planet and thus gravity will play a large role. And then there is the issue of falling debris. One of the unrealistic things about space battles in star wars and star trek is that the ships fall once shot, that wouldn't happen in the middle of space, but it would eventually happen in orbit. Obviously I'm not an expert about these things but I think it's important to take into account the OBJECTIVE space combat would be trying to achieve to figure out what it would look like.

  212. Meh. by archivis · · Score: 1

    "Space" combat will look like combat on earth, with people lasing other counties satellites on day 1, which will be the entirety of the space phase. The rest will use standard current surface tech, because we're too lazy to actually significantly leave the planet.

    --
    In July O7, I got a mac pro. There's no punchline. Just endless joy and wonder.
  213. The Forever War by Joe Haldeman by Phyrexia · · Score: 1

    ...pretty much sums it up.

  214. Nuke pumped X-Ray laser by wisebabo · · Score: 1

    Remember the old "Star Wars" defense system that Reagan wanted a long long time ago? How could (anyone) dream that such a system could possibly work, given the far far inferior computers and sensors that they had (a typical machine had main memory measured in the MB, and processor speeds in MIPS). Even today, our best systems can only hope to knock down a few, primitive, warheads launched by Iran or N. Korea.

    One BIG reason was because there was an invention that, had it been implemented, would've revolutionized space warfare (and ballistic missile defense); it was the nuclear bomb pumped X-Ray laser. Supposedly the (last?) brainchild of Edward (Dr. Strangelove) Teller, it was a completely new idea. It was perhaps the first time anyone figured out a plausible way to harness nuclear reactions (MILLIONS of times more powerful than any chemical reaction) into anything other than an explosion. (Remember that all the other fancy weapons; rockets, lasers, rail guns are probably using some sort of wimpy chemical or solar powered energy source. Even the nuclear powered ones have to store their energy in a battery before use; you'd have to store the energy from a nuclear reactor for YEARS before it would match what this released in literally a micro-second).

    How it worked was like this. Take a small (100 kiloton size) nuke which output a lot of its energy as radiation (the exact opposite of the so-called "neutron bomb". Surround it with (many) long rods of a special crystalline material, dozens or more is ok. Then, aim each rod at a (presumably) distant target. Detonate the bomb.

    The gamma radiation from the nuke will pump up the atoms in the crystalline material just like as in an ordinary laser the photo flash tubes pumps up the ruby crystal (but millions of times more intensely!). Then, in the nanoseconds before the shockwave arrives, the atoms will "lase" sending out an INCREDIBLY powerful x-ray beam down the axis (better make sure the other end isn't pointed at something you'd like to keep). Anything on the receiving end will receive a punch so powerful as to make any kind of defense or shielding irrelevant.

    Accurate aiming, even at very distant targets wasn't going to be a problem because the beam spreads (as a function of the aspect ratio of the section of the rod). So, even if the target is moving, fast or evasively, you're still going to get it in the beam. Of course this spreading reduces the power of the beam but since it is so powerful to begin with, (it was powered by a NUKE) the range was tremendous.

    When I first heard of this I dismissed the idea but then I remembered that Dr. Teller was one of the world experts in radiation pressure from nuclear weapons. He came up with the first practical (small enough for an airplane) design for an H-Bomb; by focusing the radiation pressure from a fissile bomb, it could be used to ignite a tritium-deuterium core. So his idea had some legs to it and became one of the primary pieces in Reagan's "Star Wars". As he proposed it, he'd put the X-ray nukes in missiles in submarines. Then, upon detection of launch by the enemy, these things would "pop up" and destroy the oncoming warheads with each blast. This solved two problems; first the U.S. wouldn't have to put any nukes (or any other weapons) in orbit which would violate the 1967 outer space treaty (amazing how Reagan, unlike Bush, respected treaties). Secondly, since each blast could take out dozens if not hundreds of enemy targets, it was an effective defense against MIRV's which (before Reagan negotiated the START treaties) was leading both sides to a very risky "first strike" scenario.

    Well, as you know, "Star Wars" was never built, quite possibly because this idea was never practical. However, I never did find out if it was because the physics behind it didn't work out or because (as I said earlier) the computers and sensors of the day were not up to the battle management challenge. Consider playing a real-life real-time 3D missile command with tens of thousands of

  215. Already Happening by jjp9999 · · Score: 1

    Desert Story is regarded as the first space war (because of satellites), and after that, China got on the ball with anti-satellite weaponry to combat this, then the U.S. and China started developing space war tech. The documents on this are always interesting (U.S.-China Economic and Security Review Commission) (Air & Space Power Journal)

  216. Real Space Warfare by Anonymous Coward · · Score: 0

    Caustic Soda did a whole episode on this:

    http://www.causticsodapodcast.com/2010/06/28/space-warfare/

  217. see it now by Anonymous Coward · · Score: 0

    If one of the regular coast to coast AM guests is to be believed (yeah, yeah) You can get a good pair of 3rd Gen. night vision goggles and see space combat going on all the time.

  218. You have watched too much Holywood rubbish by InspectorGadget1964 · · Score: 0

    By the time a civilization reaches a stage on which they can build large interplanetary spaceships, they are also smart enough to know ways to profit of peace rather than war. Your question belongs more in a primary school classroom than in the real world.

  219. Capital ship FTW by foxx1337 · · Score: 0

    No lasers, no torpedoes, no explosions. 1 capital "ship" with a "warp engine". The engine would "consume" the space occupied by the enemy, then assemble them as photons and Hydrogen left in the "trail".

  220. Re: Humans of no? by Grishnakh · · Score: 1

    The question being asked here in Ask Slashdot is ridiculous IMO, because it's simply too vague and open-ended. For a better answer, we need to know the following:
    1) Who are the combatants? Humans vs. aliens, humans vs. humans, aliens vs. aliens?
    2) What are the technological levels of the combatants? Present-day tech, FTL & phasers, or somewhere in-between?
    3) What are the objectives of the combatants? Taking over Earth, controlling some land on Venus, what?
    4) Where is the combat taking place? Here in our solar system, in some other solar system, in interstellar space?

    Human vs. human war in space doesn't sound terribly realistic, simply because we're all living here on Earth. Why would we go up into space to fight it out, instead of going directly for each others' home territory here? Maybe if we're fighting some dumb proxy war where we have a "gentlemen's agreement" to limit the combat to space and not invade each others' earth-bound territories, but it still sounds pretty dumb.

    Human vs. alien war in space doesn't make any sense unless it's far in the future and humans have star-trek-like technology, and at that point, your imagination's the limit as to what space combat would look like. Go watch any sci-fi movie (or rather, any sci-fi movie made > 10 years ago, since I don't think anyone's made any such movies in many years; the last was probably Star Trek: Nemesis) or read any sci-fi book to see different ideas of what it'd be like. Any of these ideas is probably about as valid as any other.

    Human vs. alien war here in the solar system, not too far in the future, wouldn't be much to see; the humans would simply get slaughtered by the far more advanced aliens. But this doesn't really make much sense either because any aliens advanced enough to travel all the way over here (which would require a huge amount of energy) likely wouldn't need anything we have; they can just go get it at some more-convenient star system, or in their own star system, or just synthesize it. I think it's quite likely the only reason any aliens would ever visit us is to actually establish contact, not steal our resources. There's tons of resources right here in our own solar system, waiting to be extracted, if we'd just get off our asses and go get it (after developing some better technology, such as a space elevator). The idea of "unobtainium" like in Avatar is rather silly really.

  221. Re: Humans of no? by Grishnakh · · Score: 1

    War isn't that ridiculous in theory; in many cases, different tribes of people are fighting over either land or resources. Land and resources are both limited, and of course some land is much nicer than other land (i.e. south France vs. Sahara desert; one's a nice place to live climatically speaking, the other's almost completely unlivable). When those different tribes don't want to share, conflict happens.

  222. Space combat in today's age.... by ogdenk · · Score: 1

    With current technology space combat would look a lot like it did in the 60's. The Russian Salyut 2 was armed with a 23mm Nudelman cannon. They tested it twice, worked great.

    Slug-throwers still make sense in space. Most of the weight is in the ammo which could be jettisoned prior to reentry. Bullets still work just fine in space. They'd be noisy (inside the spacecraft if still pressurized) and vibrate a lot but would have MUCH greater range and flat trajectory aside from gravitational influence. Would need to be recoil-less or would need some opposite thrust to compensate. Ground-launched craft would need to be lightly armored if armored at all for reduced launch weight increasing the effectiveness of the good ol' chunk-o-lead.

    Lasers, phasers and anti-matter weapons would take too much precious power that's needed for other things with current tech. We have missiles and guns and you can be sure that's what we'd be using. A plasma missile would likely follow shortly after. Would probably need some work over time to find best gun oils for space use, etc....

    Think less Star Trek and more a mutant cross between cold-war era Sub warfare at a distance and WW2 dogfighting with no gravity up close. The first "StarFighter" would probably be a Gemini with a pair of belt-fed .50's and MAYBE a couple guided rockets. Would make mince meat out of anything up there with ease. We could cram a pretty sweet targeting system in the space occupied by old-school 50's-era avionics and equipment these days. I could even see waist or turret gunners in anything with a large service module.

    If we had something to fight over out there toward the moon and were afraid to lose it, believe me you'd see something like the above fast. Maybe an armed Apollo with a "Assault LEM".

    Think a .308 is nasty now? Imagine a handful of .308 tracers with no air resistance flying at your tin can full of hydrazine and oxygen with nowhere to run.

  223. We won't be there! by Anonymous Coward · · Score: 0

    Remember NASA, no life beyound earth. Remember the conservitive party, dumbing down our children, cutting funds for education, and instilling crusader principles to our governments, who believe that there is no reason to see, or learn of the face of god. Remember the people who believe it is better to live in a gravity well, rather then above it. Remember the dark ages are on their way again. The cold of the heart, and the hearth. We are going to become the food of the gods, not the creator of new gods.

  224. How do you find each other? by Anonymous Coward · · Score: 0

    The key problem is knowing where to find the enemy. We already have systems to hide our aircraft from radar - and since space is black, it's pretty easy to hide from visible light - almost all of the electromagnetic spectrum can be absorbed or randomly scattered to avoid reflecting any energy whatever back at the onlookers. Space is crazy-big - so unless you have some idea where each other are likely to be - you'll never have a battle of any kind except by the most stupendous coincidence.

    Hence, the only battles are going to be around planets and moons and lagrange points and such - where you know the enemy is likely to be because they have to be precisely *there* for some special reason.

    So - we must conclude that we have attackers who can't be detected approaching ground-based installations who can't move very fast because they have to be there for some reason. Slinging big rocks at them at ungodly speeds starts too look like an undefeatable plan for the attackers. There isn't really very much that the defenders can do about that - they can't easily see them coming (especially if you surround your rock with a black, radar-absorbing balloon). They couldn't deflect them if they could see them coming - and they can't smash them without turning one big crater into a billion half-inch bullet-holes - either will take out your city/mine/factory/whatever.

    Hence we may deduce that the defenders are at such an ungodly disadvantage that they have to leave their planets and live their lives out in randomly selected locations in space. If both sides do that then they are so astronomically unlikely ever to find each other that war will be more or less impossible.

    Conclusion: There won't be any space wars. Sorry.

    1. Re:How do you find each other? by mbkennel · · Score: 1

      (especially if you surround your rock with a black, radar-absorbing balloon).

      it's harder to surround your rock of kilometer size with a heat-absorbing balloon. Smaller things, you can use liquid helium for a finite time.

  225. i guess, by unami · · Score: 0

    it would look a lot like submarine combat - endless outsmarting and repositioning - and then deploying of autonomous weapons. maybe railguns for direct combat.

  226. Incredibly slow. by shugah · · Score: 1

    Shoot something.

    Wait a million years.

    You sunk my battle ship.

    --
    If you aren't part of the solution, then there is good money to be made prolonging the problem
  227. the pressures are very different by doug141 · · Score: 1

    Seal-healing hulls are already available for fuel tanks that get shot.

  228. Carrier Has Arrived! by Anonymous Coward · · Score: 0

    in think we mostly agree drones will be common. i see somthing in the vein of a SC2 Carrier. Large hulking capital ship capable of interstellar travel, containing hundreds of unmanned drones.

    the drones rely on speed and evasive ability.

    the capital ships primary weapons are designed to for limited fire support to deter direct attacks from drones.

  229. Distance won't matter by MijaDeus · · Score: 1

    If we can hit a moon of Saturn from the Earth, there is no reason we couldn't fire a hail of bullets intended to reach its target 1 month later, when we know it will be sitting there.

  230. Applied knowledge == power by Anonymous Coward · · Score: 0

    What most of the posts I have read are missing is the idea that resources are important. It takes years to get the resources prepared for space vessels, stations, and planetary outposts. Think about the state of technological warfare. It's cheap to run a DDOS attack, but doesn't achieve much. Same thing with physical attacks. You can blow your enemy up really easily, but you don't gain anything besides losing all their resources.

    Instead, I expect to see espionage take a huge front seat. Social engineering will be important to the utmost. War has always been fought with information, public support, and money. The future will be no different.

    1. Re:Applied knowledge == power by MijaDeus · · Score: 1

      uh. Denial of resources is a main *point* of war. In fact is a huge social motivator.

      Its one of the better types of social engineering out there!

  231. Why can't we use bullets as thrust? by MijaDeus · · Score: 1

    So, playing the game Independence War has shown me that in deep space, your adversary is almost always in a straight line away from you. Why not accelerate away from the bad guy by firing bullets at it nonstop?

    but then there's that problem of constantly losing mass.. Something that Spiderman has apparently found a way to get around..

  232. Space combat? What space combat? by Anonymous Coward · · Score: 0

    Because of the vast size of space, ship to ship contact will be rare outside of planetary attacks. There will likely be no way of effectively protecting a planet from every angle, so it will probably be pretty well offensively driven at first. Unless faster than light travel is developed though, as distances increase, attacks will be expensive, and since they will be decades out of date by the time they arrive, more likely to fail.

    Effective warfare will likely be more trade based. Trade coalitions will enforce a basic set of interstellar laws, or, when there are enough settled planets that trade restrictions are no longer effective, each planet will be functionally independent with no accountability to anyone else. hostility will be prevented simply by the costs associated with engaging in it and the risk of reprisal.

  233. Foolish human combatants of the space. by JCPM · · Score: 0

    Give them a waste of energy as a gift, and they will get your wasted energy for another purposes. And you did waste much of your money and resources.

    I think that only suicide U.S. astronaut in the war space is a chimpanzee trained by the U.S. forces for killing everyones that move in the outer space, but the silliest thing is that this chimpanzee wastes all their bullets without counting them for later shots.

    As a comedy, WHAHAHAHAHAHAHAHAHAHA.

    JCPM: in outer space, nobody did expect that the lasers will be frozen into lesser levels of their energies, then hitting against a silvered-siliconed penis-body is insensitive.

  234. Reality Check by Plekto · · Score: 1

    http://www.escapistmagazine.com/forums/read/18.100198-Space-Warfare-Almost-Everything-You-Know-Is-Probably-Wrong

    Pretty much everything you see in movies is wrong. And in video games. And on TV. And read in books.

  235. The Chinese already showed us by Anonymous Coward · · Score: 0

    how to do this:
    Blow up a satellite. The debris field renders any crossing orbit untenable.
    Your bird hits a titanium fastener at combined 50,000 MPH and I don't care how big your Whipple shield is.
    Plus we've all been stockpiling these munitions in GEO for a number of years now.

  236. Light speed lag by Roger+W+Moore · · Score: 1

    Even at the speed of light at long distances there can be an appreciable time lag of a few seconds. This would be enough to miss an erratically manoeuvring drone (and it would be a drone since humans cannot handle large accelerations and need air which is easily lost through holes). There is also the issue of laser diffraction which make long distance lasers unlikely.

    The advantage with a missile is that it can have onboard intelligence and so correct for target motion as it gets nearer. So missiles will be an effective long range weapon, but almost certainly nuclear, not antimatter. The biggest issue with this is actually storage rather than production - we can make far more than we can store...although we cannot make much, about enough to warm a cup of tea at CERN.

  237. It makes noise. by argee · · Score: 1

    I saw a movie of a space battle -but forgot the Name. There was a lot of noise, zapping sounds from the Lasers,
    booming from torpedoes, crunching sounds from colliding space ships.

    Now, how do you think they recorded those sounds in outer space if there was no sound?

    1. Re:It makes noise. by MobileTatsu-NJG · · Score: 1

      Now, how do you think they recorded those sounds in outer space if there was no sound?

      It's funny that you think Luke Skywalker can hear John Williams' musical score.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    2. Re:It makes noise. by Anonymous Coward · · Score: 0

      It's funny that you're trying to pretend that sound effects *portraying exactly what's going on screen as if you could hear them* equate in any way to a musical score. Either you're trolling, or you really are this retarded.

    3. Re:It makes noise. by MobileTatsu-NJG · · Score: 1

      It's funny that you're trying to pretend that sound effects *portraying exactly what's going on screen as if you could hear them* equate in any way to a musical score.

      It's funny that you don't realize the role sound effects have in presenting a video.

      Either you're trolling, or you really are this retarded.

      Speaking of being 'retarded', show me a clip of Captain Picard saying "whoah, did hear that Romulan ship fly by?" Or, how about showing me Han Solo telling everybody to shush while the Falcon is attached to the Star Destroyer.

      Oh, you can't? You can't find one of Indiana Jones telling the trumpet player to hush, either. Big surprise. The sound is there for you, the audience. That's it, they're the primary concern. If you don't believe me, click this link, mute the sound, and tell me how interesting the clip is.

      This is common knowledge, I'm not sure why you're arguing with me about it. Thanks for the chuckle, though.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  238. It will look exactly like this by Gumbercules!! · · Score: 1

    Why I believe it will look exactly like this:

    http://art.penny-arcade.com/photos/i-M8XxLDd/0/L/i-M8XxLDd-L.jpg

  239. Mines don't work in space by erice · · Score: 1

    Mines would be big - think autonomous boxes that sit quietly playing asteroid until something big that lacks the FOF beacon comes into range.

    Classical mines operate on the principle of detecting without being detected and then exploding at very close range.

    Getting a manoeuvring object close enough to the target that exploding would cause any damage is unrealistic in space. Without a medium (air or water) to transmit a shock wave, your bomb must get very very close and space is just too big for this to happen with any plausible mass of mines.

    I'm assuming that the target is an actively manoeuvring military vessel. Satellites run into trouble with space debris all the time but that is because the satellites have predictable, over used orbits, no ability to detect foreign objects and very limited ability to manoeuvre.

    More realistically, your "mine" would be an automated firing platform. Once the enemy is detected, an active assault (laser or missile) is launched.

  240. Sticks and stones by JoeMerchant · · Score: 1

    Seriously, didn't the Chinese set off some shotgun shells as a satellite killer experiment?

    It doesn't take much, if you can put yourself in retrograde orbit, maneuver for near collision and then throw a rock out the window, you'll do pretty well at killing any manmade object in orbit.

  241. Deja vu by OneAhead · · Score: 1

    http://gizmodo.com/5426453/the-physics-of-space-battles
    All your questions answered by an expert.

  242. viruses by mruizcamauer · · Score: 1

    it will be done via computer viruses. All vehicles that need to communicate will be attackable at light speed by infected communications. All conceivable vehicles will have computer links, not just "radios"... so if you can infiltrate their comms, you win. This is both manned and unmanned vehicles, stealth or hidden or whatever.

  243. Good answer, here is more on that topic: by TiggertheMad · · Score: 1

    >

    My X-laser won't even know your mirror is there.

    Bullets have a number of problems, including hauling mass into space, and recoil. Recoil is something that is prohibitive and people in this thread aren't thinking about what this means.

    Space, to borrow a phrase from HHGTTG, is big. In all likely hood, you will be shooting at things many miles away and traveling at high velocity. While a few 9mm pistol rounds will be quite dangerous to an unarmored space craft, the kick they will deliver will make long distance accuracy challenging. If you go this rout, you will probably have fire a single round, pause and correct the firing solution for the micro torques you have put on your ship, and then fire again. (Guns will probably have to be mounted on an axis that goes through your centroid, to maximize accuracy). It the target corrects course at all, your shots will likely miss.

    Missiles would probably be better, since they can track and correct. They could be built to be fairly small, since they don't need massive engines to propel them through thick atmosphere. They could also extend electronic surveillance coverage by broadcasting what they see as they travel to a target. In Space, which we have agreed upon as big, this is an important thing to consider.

    Parent post is best suggestion: High energy laser pulses to kill crew outright and leave space ship recoverable. Electromagnetic radiation is fast and accurate, which is important when ships are traveling at thousands of miles per hour.

    Most space combat will be like modern air combat or sub warfare - You spend a lot of time and effort to see them before they see you.I could see AWACs space controller sats feeding info to drone carriers manned by humans. Ultimately, a lead sphere will end up being the unsinkable battleship, with a lot of soft dense armor to absorb kinetic rounds, and absorb EM weapons. Probably layers

    --

    HA! I just wasted some of your bandwidth with a frivolous sig!
    1. Re:Good answer, here is more on that topic: by lennier · · Score: 1

      Most space combat will be like modern air combat or sub warfare - You spend a lot of time and effort to see them before they see you.

      That bit is difficult since space is, as the name suggests, mostly empty. There's only so many times you can hide behind planets unless you're fighting in low orbit.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
  244. EMP? by Anonymous Coward · · Score: 0

    One massively large EMP....

    game over. For both sides.

  245. An old design by Chewbacon · · Score: 1

    When I was in high school a few friends and I tackled this for a game design. We decides lasers were too impractical for the energy required to do any damage so we went with rail guns and "kinetic rounds" (bolts) as an explosive propellant would send ships flying across the galaxy. Battles took place at a distance and we eliminated the need for fighters with our story line.

    --
    Chewbacon
    The Bible is like Wikipedia: written by a bunch of people and verifiable by questionable sources.
  246. Read some Niven by Anonymous Coward · · Score: 0

    It will consist of a lot of math. A lot of orbit and trajectory calculations, and firing missiles or even just chunks of metal at each other. Kinetic weaponry works pretty well when you think about relative velocities. Think about that scene in the beginning of Pitch Black when the dust particles punched a hole through the ship/captain's cryopod.

  247. I wanna be combatant. by JCPM · · Score: 0

    Better to be unarmed than to be a soldier.

    The humans will be the losers if a space combat occurs.

    And i've had a secret that won't say you about the tactics of war because the evilness is haven in a part of some humans.

    JCPM: i'm a man of peace and i need a little kingdom of peace that nobody of the weaponed underground empire did give us one.

  248. space combat: already here by mbkennel · · Score: 1

    stealth.

    Powered missiles with a substantial cryogenic coolant deployed on the enemy-facing side to make it as cold as background. Time from launch to impact is weeks.

    There are rumors that there are already 'barnacle' satellite parasites existing today. That is, small enemy satellites, which, over time (weeks/months) saddle up to somebody else's capital satellite (usually communication/surveillance) and just stick on, and listen in. In the event of hostilities.....

  249. Return of the age of sail... by IBitOBear · · Score: 1

    Read the Honor Herrington books. They are basically the Horatio Hornblower books, but in space.

    With "fast ships" the time lags experienced by a viewer of a combat means that the combat is over before you can join. So it all will recede back to the age of sail need to know your enemies and guess their tactics. Sure there will be atomic pumped X-Ray lasers but they will need to be detonated from physical missles except in the closest of quarters, and will have issues very like manuvering and fireing cannon.

    The oribital mechanics will work very much like issues of wind since chaning direction is incremental when in a stellar orbit. Ships will want the favorible lower-to-the-star orbits so they can sweep out degrees of arc faster, which will be very like having the favorible position "up wind". etc.

    The books are quite well written, but there will be a lot of very tense "long" periods of waiting.

    --
    Innocent people shouldn't be forced to pay for inferior software development.
    --"Code Complete" Microsoft Press
  250. Re:No, dark and fast and silent. by IBitOBear · · Score: 2

    There was a book I read some years ago, perhaps someone can recall it's title. The main character is a computer programmer who is enlisted to revolutionize space combat.

    Someone has built a ship that basically has rail-gun-ish cannons down one side and thrusters down the other. The ship is full-to-brimming with cannon balls (innert spherical metal etc). The goal is to synchronize the thrusters and cannon so that the ship can create a "virtual surface" (non-stationary warped palnar segment) of moving balls in space which would be launched into the predicted paths of moving ships. The composite delta-v of the masses and the ships would be terrific, but unlike missles and guided municians, there would be no energy output useful to detect the actual palcement and path of the sheets.

    Ship-to-ship kenetic bombardment could actually be pretty-damn effective.

    (The plucky resistance couldn't afford to make missles and guided weapons, and even if they could, they didn't have the necessary industrial complex. But they could make these 20lb ballbearings. The programmers challenge was to get all the rail guns to fire in concert with eachother and the thrusters, the original software sucked because if there was a mis-load or jam the entire volley would not fire etc. Good reading. Wish I could remember the title.)

    --
    Innocent people shouldn't be forced to pay for inferior software development.
    --"Code Complete" Microsoft Press
  251. What Would Real Space Combat Look Like? by Loki_666 · · Score: 1

    Easy. Elite. Pilots of the ships would be obliged to play classical music while in combat, Night on Bare Mountain for preference.

  252. this is easy by Anonymous Coward · · Score: 0

    Space destroys meat. Any space combat is going to be about preserving functionality. The less meat you need to protect the more likely it is you're going to survive.

  253. An Excel Spreadsheet by Greyfox · · Score: 1

    You'd both compute your fleet's offensive and defensive capabilities and then the offensive and defensive capabilities of the other side and then one side will surrender. Naturally.

    --

    I'm trying to teach myself to set people on fire with my mind... Is it hot in here?

  254. What would it look like right now? by Anonymous Coward · · Score: 0

    I like to think about how space combat would work using only limited adaptation of existing technologies.

    Would lasers be feasible? There are laser weapons now, but their energy requirement is prohibitive. There are chemical lasers, but the fuel for these is expensive and volatile, so laser use would most likely be limited at least. The military application of lasers at this point is almost entirely defensive: lasers are used to destroy incoming projectiles.

    How about simple kinetic projectiles, like bullets? The main challenge is the vast distances involved in space combat: aim would have to be incredibly precise in order to hit a target at great distance. However, given such precision, dumb mass projectiles would have practically unlimited range without any meaningfully-dense interplanetary gas to slow and alter their motion. Also, the shape of these projectiles need not be aerodynamic to ensure straight flight, so you could engineer your bullet into all sorts of interesting shapes in order to inflict maximum damage on enemy craft.

    And what of smart projectiles, like guided missiles? The guidance systems might use IR (honing in on engines, generators, and other hot systems) or radar, like conventional guided missiles. Or, the missiles could be told to go to a specified set of coordinates and simply correct course based on a known network of satellites or some such thing, overcoming the need for incredible precision I mentioned concerning dumb projectiles.
    Explosive payloads might be used, but simple kinetic missiles might also be effective enough. Missiles might not need constant thrust, although constant thrust might be nice since the velocity of impact would impart energy... it really depends whether you need to punch through armor or just tear apart a flimsy satellite/spacecraft with shrapnel.
    Maneuvering is a bit of a trick, since the established technology of using fins or vanes to change course would not work. You could use little directional thrusters with pressurized gas, but such a complex system might be expensive and unreliable. You could have a single thruster (removed from the center of mass) with two degrees of rotational freedom, although controlling rotational momentum with such a system might take a decent amount of computational power and sensors. If it were me, I would simply include two internal circular masses (perpendicular to one another) and rotate them to adjust the orientation of the missile. The control would be easy (simple PID model would probably do the trick) and the system would be simple and cheap enough to rely on.

    What sort of craft would you use? While I agree with many posters that remote-controlled drones would be appealing, I think in certain circumstances line-of sight could be an issue (especially around planetary bodies). Manned craft seem silly, though, because of all the systems required to support human life. Maybe manned command modules could be used to control fleets of robotic craft? The control module could maintain a line-of-sight by maneuvering itself, but keep far enough from the battle to avoid the need for weapons.
    Autonomous fleets might be possible in the future, but from what I know that's still a ways from actual deployment in our current terrestrial drone operations.

  255. Easy by geekoid · · Score: 1

    Clouds of nanite swarms.

    But... this probably will not happen. ever. To expensive, to much time , there wont be any 'fast' combat.
    If we get to the point where we can garner the energy requires for lasers..then are systems will be able to defeat those system.
    We will have AI, which will build to be optimal solutions and a counter solution, ad the AI will be the same everywhere because there is only 1 optimum solution for every encounter type.
    Of curse, dynamic changes will happen, but for an AI, the change will be slow and predicted because will will have a lot of time between calculation and real world firing. I mean, milliseconds to maybe 2 seconds.

    right now Arial combat will happen in a 100 miles cube. In space, ships will be light minutes away.

    The combat on the ground is'r realistic for a space faring races, because we would just drop rocks. very very large rocks.

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  256. Must read by Anonymous Coward · · Score: 0

    Read Peter F. Hamilton's "Reality Dysfunction". It's a cross between SF and Fantasy (so I hope you like fantasy), but on the SF side of things, he get's space combat mostly right.

    - Bertus

  257. See: Homeworld Triology by Harry Harrison by Anonymous Coward · · Score: 0

    I think HH had the right idea about space battle.

    While the bad guys (defending the dictatorial rule from Earth) in orbit thought "rockets" for space comabt (they had backdoors into the existing rockets' control, so they did not fear them), the revolutionaries (the protagonists) attacked Earth very unconventional: They turned any available piece of iron in the asteroid belt into different-sized balls (just melt them, they'll form into perfect spheres in zero G) and shot them with railguns towards a pre-calculated point where earth would be at the time of arrival. The small iron balls went unnoticed until they just wiped out earths orbital defences.Without making any sound.

  258. Electronic warfare by Anonymous Coward · · Score: 0

    Interesting replies, but I don't think space combat would be anything like that. First of all, in the age of interstellar travel I don't think anyone would send human pilots to bash each other skulls in. Autonomic vessels and remotely controlled machines will likely be used. Furthermore, I don't think direct confrontations will be the thing of the day. It is much more efficient to shut down a complex machine than to destroy it - I reckon spaceships will be a lot more susceptible to electronic attacks against its computing and communication systems.

    Spaceships will have to be heavily shielded from all types of radiation, so energy beam based weapons will probably be ineffective. Missiles will probably be used, but in open space it is a lot easier to counter them - a guided laser beam for example. My bet would be on a high power cannons, shooting projectiles at incredible speeds, much like firearms today. Considering the nature of space, there could be stationary weapon platforms capable of transmitting incredibly powerful laser beams across the galaxy.

  259. To expensive by Anonymous Coward · · Score: 0

    Where would you fight, in space around earth? About what? Laser works really well in space, small projectiles can be devestating in space. You don't want to go through all the trouble for a fight that lasts 10 seconds imho..

  260. System defense systems and STL starships by dreamsinter · · Score: 1
    I hate to boast, but ... I've written something on a combat between a STL starship and a system defense system. The definitive, I'm sure http://www.multiverse.org/fora/showthread.php?t=9501/ to wit:

    The AI network on board the starship the Chandrasurya was having a nightmare - as AI's go. It had concluded recently - about three or four years back - that the increasing number of micrometeorite impacts on its hull were not accidental at all. Micrometeorites do not in general leave an ionic trail behind them. It had used as much of the micrometeorite defense as was feasible; had upgraded its security environment to careful; but had not yet decided it was now critical. The hull was losing a microscopic amount of integrity, but the Chandrasurya had only reached the heliopause of Alpha Centauri. It predicted that on the grounds of the increasing number of impacts, it would soon reach a maximum level of impacts when it had decelerated to orbital speeds and had reached the Lagagrange 1 point between the two stars. At that stage hull integrity would be seriously, even fatally, compromised.

    When you can accelerate a pack of micrometeorites to a high-enough speed, you don't need to be particularly precise in your aiming; when you're aiming at something travelling at an appreciable fraction of the speed of light, you don't need a vast amount of mass. And the aim is to degrade hull integrity, as a starship breaking up from braking stress at speed is such a pretty sight!

    --
    "I his bow, and spun and wove, likes you." Vere de Vere out of my mould's mouth dragged me of the voluntary apes.
  261. How it would start by Anonymous Coward · · Score: 0

    With the message:
    "All your base are belong to us"

  262. battles happen for planets - on rocky planets by mrthoughtful · · Score: 1

    Allowing for some form of FTL that has no impact as a strategic weapon is already a total fabrication, so we would have to look at systems where there are more than one habitable planet. Infowar can happen at lightspeed, but I feel that infowar is outside of the scope of 'space battle'.

    To me 'space battle' implies the idea that there is territory worth fighting over, in space.
    As I see it, the only territory that is worth fighting over is something capable of yielding resources.
    So, the most precious resources are found on the inner planets. Rarer still are naturally occurring (cheap) habitable conditions - so space battles are more likely to happen on-planet rather than off-planet, as battles are expensive.

    Planetary defence plays a part - so if high atmosphere defence against an invasion fleet counts as a 'space battle' - then you could probably see that.
    But the invasion fleet would not be 'manned' - it would contain lightweight payloads to incapacitate the population. So probably some form of biological warfare attack.

    Likewise very low mass objects have an advantage in that they don't burn up in atmospheric entry. So some sort of very hardy vacuum-survivable biological agent being dispersed across a planetary atmosphere- or (if there is diplomatic interplanetary travel) a biological 'suitcase bomb'.

    --
    This comment was written with the intention to opt out of advertising.
  263. Re:No, dark and fast and silent. by deimtee · · Score: 1

    Sounds a lot like a the trilogy of books by Harry Harrison - Homeworld, Wheelworld, Starworld.

    --
    I'm guessing that wasn't on their radar screen...
  264. No manual aiming. Mind the debris. by Anonymous Coward · · Score: 0

    a) manually aiming (as in Star Wars) would be ridiculous, given that computers would be better employed to hit first time every time.

    b) you don't want the enemy to blow up, because bits of debris would come flying right back at you. Unless you've a way of deflecting it all.

  265. you are ruining someones day by Anonymous Coward · · Score: 0

    Gunnery Chief: This, recruits, is a 20-kilo ferris slug, feel the weight. Every five seconds, the main gun of an everest class dreadnought accelerates one to 1.3% of light-speed. It impacts with the force of a 38-kiloton bomb. That is three times the yield of the city-buster dropped on Hiroshima back on Earth. That means- Sir Issac Newton is the deadliest son-of-a-bitch in space. Now! Serviceman Burnside! What is Newton's first law?
    Serviceman Burnside: Sir! An object in motion stays in motion, sir!
    Gunnery Chief: No credit for partial answers, maggot!
    Serviceman Burnside: Sir! Unless acted on by an outside force, sir!
    Gunnery Chief: Damn straight! I dare to assume you ignorant jackasses know that space is empty. Once you fire this hunk of metal, it keeps going til it hits something. That can be a ship. Or the planet behind that ship. It might go off into deep space and hit somebody else in ten thousand years. If you pull the trigger on this, you are ruining someones day, somewhere and sometime. That is why you check your targets. That is why you wait for the computer to give you a damn firing solution. That is why, Serviceman Chung, we do not "eyeball it". This is a weapon of mass destruction. You are not a cowboy shooting from the hip!
    Serviceman Chung: Sir, yes sir!

  266. Biological warfare to the max. by captainpanic · · Score: 1

    Life itself is so ruthlessly contageous, that any earth ship that lands will start a biological war that will either completely take over another planet, or will die very very quickly to a superior life on that other planet, or unfavorable conditions. Even when species are introduced on another continent on earth, this happens. It is as unstoppable as the world's biggest army. Whether we like it or not, we carry thousands of other species with us wherever we go. Add a few additional ones to complete the mix, and the invasion is complete. You only need a small drone for that. There is no need to make a planet uninhabitable. Just terraform it, and there is a big change that all existing life goes extinct soon enough (either that, or we lose, and declare it uninhabitable, and move on).

    As for the space warfare - I think it's just a matter of how much "fi" you want to put in the sci-fi. With current technology, we would probably just run out of juice before any real fighting starts. It wouldn't be space warfare... it would be orbital warfare, and space debris is the primary weapon there.

  267. War and space self exclusive by Anonymous Coward · · Score: 0

    If you reach a point where you can access space on a meaningfull basis, my guess is that you stoped being stupid enough to make war. That is you passed the self destruction barrier. Conversely, if you are still planning war with a slightly higher level of technology than ours, I don't think you have time to deploy to say the nearest solar system without some one destroying the planet you just left....

  268. current tech by Anonymous Coward · · Score: 0

    All you need is a few LEO nukes and you win

  269. First Strike by Tim12s · · Score: 1

    Intelligence
    - Deploy active/passive sensor net in an area or in an orbital plane. Used for detection and self positioning system. These could be micro satellites (100kg) or larger satellites for more permanent gps like positioning system.
    - Deep space communication network. Again, micro satellite network deployed to ensure that comms never originate from high value sources/targets

    Defence
    - Dodge projectile weapons by having automated, periodic, chaotic adjustments of direction (minor adjustments will be sufficient to avoid most dumb projectile weapons)
    - Lasers to protect against inbound missiles

    Attack
    - Active threat - Missiles with appropriate guidance systems will be best bang for buck. 20% nuclear.
    - Passive threat - Mines laid in the same orbital plane with minor adjustments. 5% nuclear.
    - Lasers will easily pick of less advanced opponents (take out solar arrays, communication antennas, sensor probes, etc)

    Spacecraft Board
    - Multi functional docking equipment
    - Flexible foam/sealant to protect against unexpected close quarter damage
    - Improved visors, etc to prevent death due to a single punch or vehicle manuvuer.
    - Quick release/abort mechanisms
    - Puncture hull and Inject toxic gas OR waiting for it to bleed oxygen before you repair the hull.
    - Projectile weapons for in cabin combat designed not to damage the hull. (Rubber bullets, etc)
    - There is a whole other discussion around how you dock and takeover another space craft.....

    Transport
    - Using traditional thrust mechanisms are most effective for manoeuvres. Most other mechanisms (ion drive, solar sail, etc) will result in easy to hit targets OR lack of thrust.
    - All such advanced drives (ion, solar sail, etc) will include normal propellant propulsion for high velocity/reaction manoeuvres
    - Deep space combat will be very different to orbital combat due to the gravity well. Noone will want to fight in the gravity well unless you intend ground based assault. This will be based on the cost of escape manoeuvres.

    All of this is based on current assumptions:
    - No magical/thrust mechanism
    - No magical gravity mechanism

    With thrust comes
    - Increased access to orbit (heavier construction capability)
    - Increase capability to create nuclear powered spacecraft (like a nuclear powered submarine/aircraft carrier)
    - I would argue that a submarine has a more harsh environment at depth
    - Increased manoeuvrability
    - Increased armour capability
    - Less dependency on solar power (bigger reactor)

    Without magical thrust
    - poor efficiency of combat in orbital well
    - cost constrained for all material
    - more fragile craft
    - limited number of manoeuvrability based on total volume of fuel before catastrophic failure

    With no magical gravity comes
    - centrifuge based life support
    - High G acceleration on emergency manoeuvres
    - poor efficiency of combat in orbital well

    With magical gravity comes
    - simple craft design
    - improved life support systems

    To sum it up. Current space warfare will not be glamorous. First strike will kill. There is no reason you could not manufacture something the size of an aircraft carrier except.... for the fact that our manufacturing capability in space, with existing technologies, will not work. On that scale, we are probably closest to manufacturing using 3d printing/resin based asteroid mining than a ground based build and hoist mentality.

  270. Closer to sub warfare by emagery · · Score: 1

    Given the scale of space and the ease of refracting light, combat in space will probably resemble long-distance submarine warfare more than anything else. Silent light-refracting source-seeking missiles guided by spherical cameras with intensely high resolution looking for occlusions (i.e., the silhouettes of ships passing in front of the stellar background.) Since it's so easy to coast, and ships would have to be superiorly insulated ANYWAYS, looking for heat signatures would require extremely sensitive instruments... but would probably be viable in tandem with silhouette detectors. All in all, it would likely be a matter of extreme hiding, long distance (many many thousands of miles at the closest probably, and more typically hundreds of thousands.)

  271. just like "The Debt" -only less exciting by WheatGrass · · Score: 1

    Combat in space would be very similar to the geriatric fight scene between Rachel Singer (played by Helen Mirren) and Dieter Vogel (i.e. "The Surgeon of Birkenaufrom) (played by Jesper Christensen) in the 2011 movie "The Debt" -only less exciting.

  272. Night's Dawn Trilogy by PontifexMaximus · · Score: 1

    Has no one here read Peter F. Hamilton? Personally, the Night's Dawn Trilogy is a pretty good indicator of space combat. (Maybe minus the voidhawks.) Fusion powered nuclear missles with multiple warheads along with electronic warfare pods fired over a broad area to disrupt space as much as possible. Although a direct hit would be nice, it's virtually a total defensive fight. Each one trying not to get hit by flooding the area with junk to hide from the guidance systems. The combat would be over in minutes, it wouldn't be one prolonged battle.

    (And I would REALLY love to have a Blackhawk, but that's just me.)

    --
    Pax Vobiscum
  273. Shape of things to come by Anonymous Coward · · Score: 0

    Cruisers and Drones.

    Given the cost of building and supplying spacecraft, and how sensitive they are to damage, the ships would be no larger or smaller than cruisers. Bigger is only a waste of ship and resources, given the amount of firepower we could pack into a cruiser. and fighters would not be able to pack enough firepower for the resources that go into maintaining the ship and crew.

    The Drones would be deployable satelites that would orbit to the other side of whatever, and attack, then return to the cruiser.

    Electronic warfare would be the most common weapon. Destroying the communications, navigation, and computers of an enemy space craft / probe.

    Other weapons would include missiles, which can be fired without any significant counter motion on the craft launching it. Mostly I expect energy weapons would be used. A stellar cannon, which either concentrates light from the sun on a target from multiple mirrors, or collects solar energy and releases it all at once through some sort of Phaser.

  274. Space Warfare by Anonymous Coward · · Score: 0

    I'm betting on "Babylon 5". But without the Jumpgates and aliens.

  275. website with real spaceship/spacewar science by vmaldia · · Score: 1

    not sure if this was posted before but this website tries to show how a scientifically accurate spaceship would work, with calculations. It also includes space warfare http://www.projectrho.com/rocket/crossindex.php

  276. Vibrations by Anonymous Coward · · Score: 0

    Wouldnt concussive shock from nearby weapons fire cause all of gas in a pressurized environment to vibrate? So couldn't you still miss with relatively dumb ordanance and still make everyone turn into meat jelly?

  277. Dull, lethal, quick by argStyopa · · Score: 1

    Hosts of semi- or completely autonomous drones, dumped into systems from hi-speed attacking craft approaching at a significant fraction of C.

    Very small, so that the energy they put out is low. Expendable, large numbers of vehicles. Some would act on attack missions (as their dropoff craft would have been detected) but most would sit gathering intel for a long (ie hundreds of hours) span to squirt to stealthed transmission drones out in the Oort cloud.

    This intel would supplement long term observations, meaning that for ballistic targets - planets, orbital stations, etc - would be easy targets for attack by high-c mostly-dumb strikes from far outside the system, conceivably even ly away. So the idea of anything bigger being safe is absolutely farcical. In fact it's the converse.

    So you end up with mutually-assured destruction, with the person shooting first having a huge advantage. Thus any civilization cognizant of this threat would have failsafe autonomous systems that were assembled (they hope) with enough circumspection and subtlety that they evaded original detection, and thus would survive the first-strike enough to make a retributive strike of their own.

    The only way to avoid this would be to attack someone before they even know you exist or are at a tech level where they could effectively reply - a rather brutal level of pragmatic elimination of potential competition one can only hope is beneath a society that's achieved interstellar technology.

    And that's the scary bit...when a strategic defense relies on a hope presuming the psychology of an utterly unknown and unknowable foe.

    Like our world during the cold war and today, this annihilatory threat would (one hopes) preclude "massive existential space war" ala space operas, meaning that conflict could only ever happen by less-capable proxies, raiding, etc.

    --
    -Styopa
  278. Current or now == no space war by uncledrax · · Score: 1

    "Given our current technology and potential near-future technology, what would a future space battlefield look like?"
    Not very interesting. It'd be a few sat's with nukes or other orbital based weaponry.. some taking on each other, and some ground-based anti-sat weapons... alot of disruption of space-based communications systems.

    The problem with a 'space battlefield' is you need to be sufficiently spread out to have a middle to meet in with a 'fleet'. Mars.. perhaps.. but not the moon.. to easy to just direct fire weapons to/from the moon.. and it'll be probably 100+ years, sadly, before we have a large enough perm. settlement on Mars that they would have to worry about independence, and thus, the need for a space war.

    I think realistically the only war that will happen in space in the near Human Future would be if some people get into a scuffle on the ISS.. :[

    As for general 'future' sci-fi wars, I really like the Honor Harrington version of things.

    --
    ----- The internet has given everyone the ability to have their voice heard equally as loud.. even if they shouldn't be
  279. GURPS Spaceships by Anonymous Coward · · Score: 0

    Steve Jackson Game's system GURPS, released quite a few books around this topic:

    http://www.sjgames.com/gurps/books/spaceships/

  280. Answer: ATTACK VECTOR TACTICAL by That_Dan_Guy · · Score: 1

    There is a very interesting discussion of realistic space combat from a board game called Attack Vector Tactical.

    http://www.adastragames.com/products/adastra/av.html

    The tutorial gets into a lot of what is going on and the energy levels required to achieve them.

    http://www.adastragames.com/downloads/AVT_Tutorial.pdf

    The biggest problem with really engaging in space combat is the energy required and the distances involved. Some of Larry Niven's Man Kzin wars stories (mostly written by other people) get into this a bit. Ships crank up to near C, accelerate a bunch of rocks to hit planets and zip through. You can't see them coming very well and you can't stop the rocks.

    David Weber is the most entertaining writer to read. He follows good physics, but the energy output of any of his warships is so unrealistically high a single missile from the smallest Frigate is probably enough to destroy a planet. Seriously, excelerate a ton of mass to .5 C and hit something with it. I don't recall exactly, but missiles in the Honorverse can get pretty darn close to the speed of light. The other problem he has is convincing me that with all this stuff moving this fast that anybody can hit anything. But hey, I've read every book, loved each and everyone and am eagerly awaiting the next one due in March. (and if you search the attack vector tactical web site, they also have a game based on his universe and the AVT movement system)

  281. Probably a lot like current submarine warfare. by Anonymous Coward · · Score: 0

    Lots of slow, tactful maneuvering and maybe an occasional kill shot.

  282. Very asymmetric advantage in space combat. by JCPM · · Score: 0

    Who own the Moon, they will throw every lunar rocks on the Moon onto the space in direction into the Earth, and when they reach the Earth, the humans (almost civilian) and living beings will be attacked by these lunar asteroids.

    JCPM: the rules are very strict, so that peace is more prioritary than any war or force-based attack that use also the outer space.

  283. Ender's Game by rivin2e · · Score: 1

    Other the space ships, is assume the combat would be something similar to whats described in the book, "Ender's game", where the use of tow lines, lasers, and what not (been a long time since I've really read the book) all come into play. http://en.wikipedia.org/wiki/Ender's_Game

  284. Hackers & electronic warfare by Anonymous Coward · · Score: 0

    Drones. And hackers hacking into each others drones. And why has hardly anybody mentioned electronic warfare? Why destroy an expensive drone when you can disable it's electronics and render it useless or confiscate it?

  285. Babylon 5 or S:AAB by jomcty · · Score: 1

    It would be like Babylon 5 or S:AAB. Hurrah!

  286. Space is simple, combat will be simpler by recharged95 · · Score: 1

    Imagine this:

    1. a bunch of stationary satellites/vehicles with rockets, laser, whatever. Cause aggressive maneuvering in space hasn't been done yet, so the Math/control systems aren't there yet, nor the MechEng problem is beyond the scope of current tech.

    2. a bunch of guys in a room somewhere in Vegas, with 60" LCDs hooked upto a bunch of computers and joysticks, cozy armchairs, and NOC-style environment... operating the space vehicles virtually. Oh and a big radar dish in the backyard and FOXNews playing on the background TV.

    THAT is what space combat will be like. Stop listening to those creative Hollywood types.

  287. Real space combat by Anonymous Coward · · Score: 0

    First, projectile weapons will not be practical except to cause a craft to move and either collide due to pilot overreaction or expend all their RCS propellant. For this reason formation flying is a bad idea. Likewise, guided missiles will be less practical because a skilled pilot can make the missile expend it's limited propellant. Area effect weapons similar to flack may be used to good effect, but would render the area impassable due to debris, which would form an expanding cloud of area denial. The best course of action is a high power laser to knock out specific systems, then capture both the ship and crew wholesale.

  288. Like Submarine Warfare by Anonymous Coward · · Score: 0

    I imagine space combat would be similar to submarine warfare: dedicated weapon platforms roaming about in a delicate ballet of ambush and guerrila tactics.

    Without the benefit of reflected light, most objects would be virtually invisible; thus illumination discipline would be necessary to reduce visibility as much as possible while manuevering in the shadows of nearby objects (e.g. planets, moons, asteroids, etc.). While these platforms would probably use radar, the immense distances of space would make radar an unreliable targeting method.

    Even if an enemy is detected within a relatively short distance, the three-dimensional nature of space travel, coupled with the limited range of weapons as we understand them today, almost guarantees that either the target won't be anywhere near the position at which they were detected by the time the ordinance gets there or the ordinance will run out of fuel before it reaches the target.

    The weapons themselves present their own problems. Effective laser weapons would have massive power requirements that would be impractical in a space-borne theatre of combat. Mass drivers would also be hampered by power requirements, not to mention the ballistic nature of the projectile. If the projectile wasn't knocked off course by stray space junk or other forces, it would be fairly easy to avoid unless the combatants were extremely close to each other. "Oh no! There's a 50 ton projectile heading our way, Captain!" "Estimated time to impact?" "Um...30 minutes, sir." "Hmmm...give me a 2 second thruster burn on a perpendicular vector to the projectile path. In the meantime, I'm going down to the galley for a sandwich. You have the conn."

    Guided weaponry could address the issue of trajectory limitations, but again we run afoul of energy requirements. Guided missiles and other smart weapons would need to carry a ridiculous amount of fuel to cover the typical distances one would encounter in space combat.

    Therefore, in order for space combat to be even remotely practical, it would require that combatants constantly play a complicated game of long-distance hide-and-seek until they are basically on top of each other, at which point the victor would almost invariably be the one who shoots first - hence the similarity to submarine combat.

  289. Sticks and Stones by Anonymous Coward · · Score: 0

    If you go to space, you have a goal, be it exploration or exploitation, or something.

    Given that getting stuff up there is really hard and expensive, I predict that any space ware will not be controlled or conceived from 'mission control', but by those few, slightly mad, individuals who are out there. And they will probably be either over resources (you mean those guys over in moon base 3 have CHOCOLATE?!? Lets go git em!) Or boredom (think collage pranks gone mad)

    So 'war' in space will be small scale, localised, and fought with improvised weapons.

    And since life in space is so fragile, there could well be a very advanced honour system, like the knights of old, that there is a fair fight, but there are things you never do. Like vent air into space. Everyone needs that.

  290. Are we talking outer space or high orbit? by madhi19 · · Score: 1

    Another thing is physic laws as we understand them now apply or can we just come up with whatever. Say in the near future a country on Earth let call it the Commonwealth of Bank of America (Founded 2025) goes to war with a rogue space station orbiting our solar system between Earth and Venus that one thing travel time and communication are relatively manageable Except in the case of a weird exotic orbit off course. But what if that space station instead is orbiting Saturn or worse the outer edge of the solar system beyond Pluto at this point hostility is almost impossible because you got years for coolers head to prevail. Excluding Alien invasion or the discovery of FTL technology it more than likely that any war in space would be fought between two Earth country in low and high earth orbit maybe also on the Moon provided somebody find Oil, Gold or Diamond on that dead rock!

  291. Real Space Combat by Anonymous Coward · · Score: 0

    Combat fought between ships at extreme distances firing extreme delta-V nuclear-armed missiles at each other. The missiles would be multipurpose which would allow the wizzo to decide on their function either pre- or post-flight. The resulting configurations of these weapons would be anything from directed-energy blasts powered by the missile's nuclear weapon, to saturation area-effect weapons, and including the same sort of weapons but held in defensive postures, waiting for enemy ordinance.

    You have to answer a few questions when it comes to "real" space combat. Do the ships have shields a la Star Trek, or are they just armored, pressurized hulls? If you assume shields, you have an integral arms race between the amount of power a ship can pump into it's shielding versus the amount of power an enemy can pump into it's own directed energy weapons. The gamers would want a balance, forcing the captain to choose between an offensive and defensive posture, but that probably doesn't reflect the real world.

    Aside from all of this is the fact that unless you're talking about a species civil war, "real" space combat is very likely to be extremely one-sided as one space-faring race is almost guaranteed to be more advanced.

  292. Planning by aprentic · · Score: 1

    Space war would probably involve less bang and more planning.
    If you had a problem with an other planet/colony/civilization you would start your attack well before the shooting starts.
    Maybe you would introduce some sort of nanite or pathogen that activates on command. Then, when your negotiations go to hell you send the signal and, poof, the guys who would have pushed the buttons just fall over.

  293. There's been several symposiums on this by Anonymous Coward · · Score: 0

    IIRC Dr. Travis Taylor, John Ringo and others held a symposium on this. Additionally over eleven years of debate on how space combat would work has been done at Baen's Bar in the Honor Harrington forum of David Weber. An incredibly short synopsis would be: the guy with the most bullets shot fastest wins.John Ringo goes into detail in the Troy Rising series.

  294. Free Electron Lasers FTW by 2kwel.com · · Score: 0

    Free Electron Lasers

  295. Space combat by Anonymous Coward · · Score: 0

    Space combat: Unmanned drones operated by wire & local 'smarts'. Principal weapon: (relativistic) sand.

  296. Jack Campbell's by Anonymous Coward · · Score: 0

    lost fleet series has some really cool space combat. Like the idea of putting ball bearings in the path of an enemy ship. Traveling at .01 light the bearings rip it apart. Also mention how easy it is for a ship traveling at .01 light to just launch a rock at planets or orbital stations and there is almost nothing that can defend against them.

  297. BSG by Anonymous Coward · · Score: 0

    Ronald D. Moore's "new" Battlestar Galactica depicted it very well, I think. "Kinetic weapons" i.e. machine guns firing what looked to me like 20mm explosive rounds and missiles, both conventional and nuclear ruled the day. Small craft movements were more realistic too. A Viper is essentially a one-man rocket that wouldn't bank and turn like an airplane. It would go in a straight line, then use RCS systems to pivot in any direction to bring its guns to bear on any target in a 360 degree sphere. Pilots would have to wear full-body pressure suits and sealed helmets to survive an ejection in case their ship suffered too much damage. Like Ron Moore said, "No ray guns, no bumpy-headed aliens, no psychic powers. Just regular people with real guns on an aircraft carrier in space."

  298. Um, publish or perish? by Latent+Heat · · Score: 1

    I guess that principle goes back to the Pleistocene.

  299. Faster than light by Anonymous Coward · · Score: 0

    If we are talking in the context of a future that features FTL, wouldn't the simple fact OF FTL make space battles obsolete? If you get my logic, that is...

    And if there weren't FTL, wouldn't that make space battles nearly impossible, aside from planetary/orbital fights?

  300. Berserker by kk5wa · · Score: 1

    To all the drone theorists, have you read any Fred Saberhagen?

    --
    sine puella vita suget
  301. 0 gravity bombers? by Occams · · Score: 1

    It would be stupoid to have bombers. When you release the bombs, where are they gong to go ?

    --
    Heavy is the head that wears the tinfoil hat.
  302. There is no such thing as 'space combat." by Anonymous Coward · · Score: 0

    Anymore than there is aerial or ground or sea combat.

    There would be different types of combat depending upon the actual locations, the goals of the parties, the weapons available, the tactics used etc. etc.

    Space combat could include; edge of atmosphere individual & group actions, automated systems, short, medium long and ultra-long range actions, combinations & far more.

    Ultimately, just as every where else, what matters is achieving the objective (in modern war the objective seems to be to generate income for political cronies--an ancient tradition.)

    The most effective weapon is that which achieves the goal based upon whatever criteria are being evaluated.

    For instance, take Iraq I.

    A major problem with that invasion was that the top brass didn't inform their subordinates about the nature of the 'victory' required. Their subordinates, lacking contrary orders, assumed that their objective was to capture as much territory in as short a time as possible. Of course, most military objectives have a number of criteria to meet, and this one required the occupying forces to take the ground rapidly enough to 'almost' stop the Iraqi elite from withdrawing across the border--given cause to follow them.

    By taking everything tool fast, this objective became impossible (politically.)

    If resource utilization is of vital importance, a single, well-placed agent is worth millions of troops & their equipment, taking a fleet w/o firming a shot is far more efficient than pummeling it to bits.

    Until cost per kg to orbit drops drastically, or we fabricate ships on lower gravity objects, spacecraft are likely to remain fairly fragile--like aircraft.

    This fragility, the fragility of control system, life-support and lack of protection by distance (projectiles don't lose energy over distance in vacuum,) means that weapons can be fairly small and low-energy and be effective.

    The fact that in space, "what goes around comes around" means that attacks using projectiles, or which result in large numbers of fragments are nearly as dangerous to the attacker as the prey.

    Energy weapons (collimated EMF) are relatively weak weapons, which gain effectiveness in vacuum--but it becomes very important to know what else is in alignment in case you miss--and they also have much longer range in vacuum.

    Maneuvering becomes more difficult too--an error of a few Kgs of thrust can put you thousands or millions of Km off course. Navigational errors, whether due to pilot error or enemy interference, can have the same effects.

    Unless you're very close to a large gravity field, large shattering explosions are best avoided. An ideal attack would be to cause failure of life/support and control systems...leaving the ship intact for reclamation.

    For close infighting of individuals, pointy & edged weapons are advantageous, though they will require changes to be useful in zero-g. Ship to ship actions would seem to benefit from grappling systems designed to both catch the other ship and knock out control/nav systems.

    Most actions are more likely to be taken by automated or tele-operated systems--simply because it greatly improves logistics. Such actions are likely to target CCC rather than more substantial facilities--if only because it's a softer target which is likely not as valuable captured intact.

    Of course, ground-based targets are the hardest to defend, and the easiest to attack and present the least risk to the attacker--nearly anything hitting at 25,000mph will do great damage to whatever it hits--and since it really matters very little what such an object is made of, ammunition becomes very cheap, Likewise, it is much more difficult and expensive to assault an orbital target from the ground.

    "Real" space combat in physical terms, is likely to be very limited, very automated, and more likely to be used as we use nuclear weapons--as a bargaining point. Used more often to take control of facilities than to destroy them.

    I would hope that,

  303. Strategic Defense Initiative with a blank check by Anonymous Coward · · Score: 0

    Niven/Pournelle's FOOTFALL tried to imagine combat in orbit. Would also have made a hell of a movie, especially that launch scene in Bellingham.

  304. that should be your second question by Anonymous Coward · · Score: 0

    the first should be: what do real women look like? you guys need to venture out

  305. In space, combat is redefined by Anonymous Coward · · Score: 0

    What is combat? A certain kind of confrontation that intends to bring about unambiguous results. Out of the different ways conflict is expressed, in space, combat is unnecessary. To be clear, space is the environment between large masses and without gravity. It is almost entirely without assymmetry, terrain, obstacles, and resources. Information and communications are the resource, line of advance and retreat. Tactics are common here with many near mass environments, but strategy is different. Humans cannot survive here, and the success of any remote deep space mission is largely proportional in the long run to robotic autonomy and the quality of subordinate decision making, policy and plan.
    I invite those interested to review the materials collected under invalidentry at jonathanleonard.com

  306. Internet Classic by Anonymous Coward · · Score: 0

    The best articles I have seen on the subject were written by Steven Den Beste of the pioneering USS Clueless back in 2004:
    http://denbeste.nu/cd_log_entries/2004/04/SpaceNavies.shtml
    http://denbeste.nu/cd_log_entries/2004/04/SpaceNavies2.shtml
    -Pete E

  307. Because by ToddInSF · · Score: 1

    the human species has made so much of a jackass of itself on Earth, we really need to think seriously about how we can be just as psychotic and violent in space !

  308. would probably be quite invisible... by Anonymous Coward · · Score: 0

    A fleet somewhere with minimalistic spy drones to find the enemy... And when the enemy is found then launch a big attack with railguns that launches radar-invisible projectiles, preferably from another smaller craft that is always on the move to avoid detection or being able to trace it back to the fleet of the attacker..

    Also, it would probably be a race of who would have the best sensors since space is quite large..

    As long as you can remain undetected and keep attacking the opponent you will win..... A few Kg in a high a velocity will cause havoc for the opponent..

  309. Lasers and Scramjets by Anonymous Coward · · Score: 0

    'current and near-future technology' translates as:

    all the rockets, nukes, lasers, and manned habitats we have now, plus lasers that actually work, ramjets, scramjets, and spaceplanes.

    which means that the only thing in space worth fighting over will be various satellites that provide communications and intelligence for earth-based battles. Plus maybe 3 astronauts who are doing pure scientific research on a space station, and who honestly, we can afford to lose if we're in the middle of an actual war.

    Space battles will be really boring. Ground based radar and telescopes identify everything in orbit that isn't ours. We shoot lasers at it. If it doesn't turn into a cloud of debris or become a clearly fried piece of electronics, we launch a scramjet missile at it. The scramjet accelerates up to mach 30 as it leaves the atmosphere, on a parabolic intercept course to the sattelite. it uses small rockets to adjust final course, and releases your warhead of choice. The sattelite is shredded, and the scramjet falls back to earth in a few hours: it was never in stable orbit.

    meanwhile, the enemy is sniping your satellites just as efficiently. Eventually, everyone gets frustrated with the entire exercise, and just launches terrain-following missiles directly at the enemies ground-control station and ground-to-orbit laser/rocket batteries.

    Nuclear weapons will not be used in high earth orbit, since they aren't needed there, and the EMP is a nightmare. They might be used in upper earth atmosphere to EMP an enemy nations, or against hardened ground targets, like laser silos.

    Next war, someone tries putting a space laser on a moving airplane, to avoid the nukes. The war lasts 50% longer while we try to find the enemies laser-plane, but it all looks the same.

  310. Real space combat by Anonymous Coward · · Score: 0

    For everyone who has stated ships would be "stealthy", stop smoking that stuff. Any ship would stand out against the cold backdrop of space, and every use of thrusters, weapons or any power systems at all would make the ship a bright, hot flare against this backdrop. Even small thrusters (like the ones used to orient the Space Shuttle once in orbit) would be visible from the distance of the Earth to the Asteroid belt.

    Combat wold be predicted on how much delta V ships have, how fast they can accelerate (which is a measure of thrust; usually the inverse of delta V except for nuclear pulse drives), and power conversion technology.

    High delta V ships will accelerate slowly but can gain great speed over time. High thrust ships can make massive changes in vector, but run out of fuel quickly (will have short range, or coast most of the way). High efficiency energy conversion equals beam weapons, while low energy efficiency equals missiles (carrying around a heavy powerplant and radiators for a limited number of laser shots makes no sense).

    Nuclear pulse drive is the only way currently known to have both high thrust/high ISP propulsion, but since the energy for the thrust is in the form of pre packaged nuclear pulse units (AKA bombs), the ship itself may well be a missile carrier.

  311. No lasers or beam weapons by mechb · · Score: 1

    Lasers and beam weapons generate too much heat to be useful in space given our technology. An interesting discussion of this topic a few year back came up with the following: When the space shuttle launches and reaches orbit the bay doors must open so the ship can begin to dissipate heat. That high in the atmosphere heat is dumped by radiation not by conduction. If the doors can not open the shuttle would need to immediately land. So in space proper the heat from laser weapons would prohibit their use. As such the most practical weapon for future combat would be a missle as the ships would probably start too far apart for direct projectile weapons. Finding a ship in space would only require having a heat vision system. It would be very hard to sneak up on someone, more a matter of them not looking for another ship. Heat seeking missles would be a default choice. Possibly this could be like old sub warfare, shoot a torpodo/missle then try to go silent/cold to throw off the enemy shots. Deploying some noise makers/heat decoys.