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Russia Planning Double Mission to Mars

dylanduck writes "Apparently Russia has revived a previous plan to send a spacecraft to Phobos, a tiny Martian moon. Turns out it's a cool place to land - much easier than the surface as far less deceleration is needed, it should have plenty of Mars rocks spattered on the surface and it's just 9000km above the surface. Some think it the perfect place for a Mars moonbase." From the article: "A mission devoted to the moons could explain how the satellites are held together - whether they are piles of rubble loosely held together by gravity or solid chunks. Most scientists assume the heavily cratered moons are captured asteroids, Christensen told New Scientist. But it is actually quite hard for a planet to capture an object into its orbit - most things just skim by. 'So how it got there is a bit of an enigma,' Christensen says."

239 comments

  1. Late Breaking News: by TripMaster+Monkey · · Score: 5, Funny

    Once more, panic swept across our fair world when it was revealed by the Council that the invaders from the evil blue planet intend to assault our innermost fortress satellite.
    The fortress satellites, which have stood guard over our world since the Council placed them into orbit over ninety Great Cycles ago, have easily fought off all invaders in the past. Against the cunning machines manufactured by the disgusting water bags inhabiting the evil blue planet, however, the fortress satellites may be more vulnerable than previously thought.

    K'Breel, Speaker for the Council, stressed that there was no cause for alarm:

    "Once again, the evil blue planet seeks to make filthy war against us. They think that by invading and neutralizing one of our fortress satellites, they will secure some measure of victory. Let me assure you, that is far from the truth. The Great Council placed the two fortress satellites in orbit over ninety Great Cycles ago, and have we not advanced since then? Today, at our present level of development, we could easily field two eights-of-eights that number. I know I speak for the Council when I laugh at the pathetic scrabblings of the evil blue planet!"

    When asked if rumours were true that the faction of blue-planet-inhabitants responsible for the threatened invasion was the same as the one who had just recently failed utterly to launch a primitive solar sail device into space, K'Breel laughed maniacally.
    --
    ____

    ~ |rip/\/\aster /\/\onkey

    1. Re:Late Breaking News: by legLess · · Score: 1, Interesting

      This is why I have you marked as "friend": so I know I'll always catch shit like this even if the mods are asleep at the switch. Very nice.

      --
      This isn't as much "normalization" as it is "don't take so many drugs when you're designing tables."
    2. Re:Late Breaking News: by ackthpt · · Score: 2, Funny
      In other news
      APM (Agency Press Mars) - K'Breel reveals his control over the blue planet water bag 'Tom Cruise' and prospective temporary procreation mate 'Katie Holms' is almost as good as he had hoped, through the 'Relgion' 'Tom Cruise' subscribes to (placed in the mind of it's founder while under considerable chemical influence on the mind, which enabled K'Breel and his caste to plant the seed.) True, the current propaganda vehicle portrays us as a race capable of utterly crushing the ineffectual creatures, the expirement has gone somewhat awry in suggesting we can be defeated by microscopic fauna in their atmosphere. K'Breel assures APM that this could play to our favor, but luring them into a false sense of security, placing faith in non-existent vulnerabilities. K'Breel's caste continue to make headsway in promoting the 'religion' of the actors.
      --

      A feeling of having made the same mistake before: Deja Foobar
    3. Re:Late Breaking News: by Anonymous Coward · · Score: 0

      Oh exploitable! We are all fucked!

    4. Re:Late Breaking News: by Anonymous Coward · · Score: 0

      2 questions:

      1. Moderator, why are you so stupid to mark this as off topic?

      2. legLess, How do you mark a person as a friend? I would like to add him as well.

    5. Re:Late Breaking News: by zephc · · Score: 2, Funny
      --
      "I would say that 99 per cent of what my father has written about his own life is false." - L. Ron Hubbard Jr.
    6. Re:Late Breaking News: by raeler · · Score: 2, Informative

      #2 Click on his name, and then click the relation tab.

      Now, please turn in your nerd license at the nearest available counter :)

      --
      This is my post. See sig above ^
  2. With all this talk of going to Mars... by bc90021 · · Score: 4, Informative

    ...people should really pay more attention to Robert Zubrin. If you haven't read his book, I suggest you do so. He has shown that it is possible to get a mission to the actual planet (not the moons) relatively safely using the same kind of technology that we used to get to the moon in the 1960s. (Of course, with what we have now, it would be "easier" and safer", and those are in quotes merely because I am appreciative of the difficult and danger.)

    We (as humans, not just as specific country-people) need to recapture our pioneering spirit, and get someone to Mars. What we'll learn and accomplish will far outweigh the danger. Imagine if people had been too initimidated to round the horn of Africa, cross the Atlantic ocean, or go to moon! It's time we got that adventurous spirit back, and applied it planet-wide. If we pay attention to our smart people (ie, Zubrin), it's not something that need be far off in the future!

    1. Re:With all this talk of going to Mars... by yog · · Score: 2, Interesting

      In fact, I would think the planet is a safer place to be than the moons. The moons would have no atmosphere to speak of and are therefore completely exposed to cosmic rays and meteorites that make space so dangerous. Plus, the vacuum requires greater relative internal pressure in the ship or base station. On the Martian surface, even though the atmosphere is not breathable, at least there's some pressure there.

      Although, I suppose you'd want an underground facility on Mars because of those nasty sandstorms.

      With regards to the pioneering spirit, while I'm with you 100%, I believe that it's really individuals and not countries that have the spirit of exploration. Remember that the U.S. only got its space act together because of perceived Soviet superiority and the fear they would dominate space militarily. Now, probably, China and the E.U. will provide the competition that pushes the U.S. back into space in the next couple of decades.

      But with a cheap launch technology, it's the individuals who will truly explore space. Once we're out of Earth's gravity well, private explorers could pretty much go anywhere provided they stocked enough food. Solar cells will provide unlimited energy, and a solar sail the unlimited propulsion. Advanced recycling equipment will minimize the loss of water and other necessities, and a decent internet connection will keep the travelers from feeling too cut off.

      --
      it's = "it is"; its = possessive. E.g., it's flapping its wings.
    2. Re:With all this talk of going to Mars... by AKAImBatman · · Score: 5, Informative

      Slightly offtopic, but not too far considering the Russian's work in this area. The other day I was poking around to provide some references for the M2P2 technology when I ran across this little beauty. This electric thruster makes Ion engines look downright primitive. According to the various articles, this engine would provide a specific impluse as high as 11,000 (one of the most efficient designs ever created!), but with a relatively high thrust ratio. According to NASA's webpage, they have been testing a workbench model at powers of up to 30 Mw (!), and they believe that such engines could be used for both deep space missions to Mars, as well as providing more efficient second stage engines for ground launched vehicles.

      Apparently the Russians have done significant work on this area, and continues to perform experiements on behalf of JPL. It's quite possible that the development of this engine could have an even greater effect on space travel than the Ion engine did!

      The only downside to this engine is that it will be likely to require a nuclear reactor for power. This increases weight and adds the danger of a nuclear reactor. The upshot to this is that it is inherently safer than the Orion or NERVA engines, doesn't polute, and can go to Mars and back several times on the same tank of lithium! (Delta-V from LEO to Mars Orbit is about 3900 m/s. Do your own calcs on what that means for an engine with an ISP of 11,000 and a craft that is a mere 25% gas tank.)

      Once again, I'm amazed at the technology already in our posession, or close to being so. Now more than ever, I really feel that we're on the cusp of a true space age.

    3. Re:With all this talk of going to Mars... by aCapitalist · · Score: 1

      The EU can't even put a man in orbit and you're talking competition?

    4. Re:With all this talk of going to Mars... by Verteiron · · Score: 5, Funny
      a decent internet connection will keep the travelers from feeling too cut off

      Except for that pesky lightspeed delay.

      PING earth.ssnet (3ffe:ffff:100:f101::1) 56(84) bytes of data.
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=1 ttl=52 time=14412874.9 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=2 ttl=52 time=14412872.3 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=3 ttl=52 time=14412876.2 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=4 ttl=52 time=14412874.3 ms
      --
      End of lesson. You may press the button.
    5. Re:With all this talk of going to Mars... by m50d · · Score: 1

      The great advantage of the moon is that it's a lot easier to get home if something goes wrong. You'll only need a delta-v of about 3 km/s to put you into earth orbit, at which point you can aerobrake or dock with a space station or something. From the martian surface you'd need (pulling a number out of my ass) maybe 10km/s, making your evacuation module much bigger and so heavier to take to mars.

      --
      I am trolling
    6. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 1, Interesting

      Wouldn't it just be easier to form an International Space Agency?

      It probably would, but it'll won't get done anytime soon. Maybe people should just forget about nationalism; it's damaging the entire world's progress.

    7. Re:With all this talk of going to Mars... by frank_adrian314159 · · Score: 1
      Remember that the U.S. only got its space act together because of perceived Soviet superiority and the fear they would dominate space militarily. Now, probably, China and the E.U. will provide the competition that pushes the U.S. back into space in the next couple of decades.

      For what? I know the reasons why a return to space would probably beneficial and you know them, but the people sitting in Congress would have to have a damn good reason for allocating funds to this (and, quite frankly, the current deficit exacerbated by the wondrous Y2K+1 tax cuts don't make this any easier). Mars is too far away to be percevied as any sort of miltary threat (we'd see what rivals were doing too soon and nuke them from the ground if they tried anything) and, as for technological advances, low-grav orbital is probably a better bet. I don't see any particular reason why we'd get into another space race nor why Mars is better than the Moon or just putting stuff in orbit other than the pure science aspect (and God knows the Congress isn't into spending money on that these days).

      --
      That is all.
    8. Re:With all this talk of going to Mars... by AKAImBatman · · Score: 4, Informative
      P.S. Don't use Isp in the calculator I posted. It only gives the correct result for Exhaust Velocity. To correct this, switch to Isp, type the value in, then click on Exhaust Velocity. The number should be automatically converted for you. Then enter the figures for start mass and end mass to get the proper results. I emailed the author about this issue back in November, but it seems he hasn't had a chance to fix it.

      FWIW, here's the rocket formula:
      DeltaV = EV * ln(M0 / M1)
      Where EV = Exhaust Velocity, M0 is starting mass, and M1 is ending mass.

      Converting between Isp and Exhaust Velocity is as easy as:
      EV = Isp * 9.80665
      Isp = EV / 9.80665
    9. Re:With all this talk of going to Mars... by Rei · · Score: 3, Informative

      I would agree about the planet being better than being on the moon: less radiation, more mineral diverse, more to study, etc. I especially agree with the necessity of cheap launch technology. However, I have trouble putting too much faith in Zubrin, however, as the GP does. Zubrin acts as if all of the problems have been solved (or are almost solved), when they distinctly have not been.

      Lightweight low-power off-planet refining equipment has been "just on the horizon" for decades. So have moderately powerful off-planet nuclear reactors (some very weak ones have been used in Soviet satellites, and RTGs abound, of course). New spacecraft design almost usually runs overschedule and overbudget. Mars eats probes (the "galactic ghoul"), and most of the failures couldn't have been prevented by humans being present. We're just starting to learn the properties of martian dust (if you'll recall, before Spirit and Opportunity experienced natural dust cleaning, it was expected that their panels would have caked over with dust long ago), which poses numerous potential hazards. I have yet to see a satisfying solution from any reputable source for dealing with bremsstrahlung radiation from galactic cosmic radiation (GCR) in transit (I've seen a lot of papers that determine that we can shield safely if we conviently ignore Bremsstrahlung ;) If you have one that covers it, please send me a link). These are just a couple issues for starters; lets not even get into how off-the-wall Zubrin's prices for "long-term colonization" transit to Mars are...

      Yes, we'll make it to Mars. But we're hardly "almost there", as Zubrin, and especially his devout followers, portray.

      P.S. - Minor nitpicks:

      A) Mars has dust storms, not sandstorms. Sand is large particles, dust is fine particles. Dust doesn't usually erode and then leave, but instead electrostatically clings; it's a different set of engineering problems.

      B) Mars's pressure is close enough to being a vaccuum: 0.007 atmospheres on average. It's really only useful for aerobraking, concentration with pumps (for refining, pressurizing things when you're on the surface, etc), and a couple other uses; you'll still have to be in bulky full pressure suits, have fully pressurized dwellings, etc.

      --
      What a crazy random happenstance!
    10. Re:With all this talk of going to Mars... by imgumbydammit · · Score: 1, Insightful

      I used to buy into the "let's get people into space and great stuff will happen" point of view fuelled by a heavy addiction to sci-fi, but eventually I came to see manned space travel as pretty pointless. I really don't think that there is anything out there that is really worth the expense of finding , extracting and hauling it back to Earth (from a commercial point of view), and I don't think that there is any science that could not and should not eventually be done with robots.

      Why robots? For one, manned space missions cost many times more than unmanned ones. Another reason is that I don't think that it's worth risking even one human life to find amoeba on Mars or any other place in the solar system.

      I also don't think that we'll ever colonise space/other planets/etc. Earth is where humans evolved, and we'll never find a place as well suited for human life.

      I figure that instead of spending huge sums of money creating white elephants like the Int'l Space Station where not much real science is done anyway, we should put the money into developing the technologies that do accomplish stuff: powerful freaking telescopes, smarter and more capable robots, and other things I can't think of right now.

      I understand your feelings about rounding the horn of Africa, but remember that when early navigators did that stuff, it was because the knew that the markets of the Far East were out there.

      --
      That's right: I'm gumby dammit.
    11. Re:With all this talk of going to Mars... by Shads · · Score: 1

      the problem is, at one time we considered it worth life and limb, anymore if someone gets scratched we cry a river.

      --
      Shadus
    12. Re:With all this talk of going to Mars... by tbjw · · Score: 5, Funny

      PING earth.ssnet (3ffe:ffff:100:f101::1) 56(84) bytes of data.
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=1 ttl=52 time=14412874.9 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=2 ttl=52 time=14412872.3 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=3 ttl=52 time=14412876.2 ms
      64 bytes from earth.ssnet (3ffe:ffff:100:f101::1): icmp_seq=4 ttl=52 time=14412874.3 ms


      I call shenanigans. Nobody uses IPv6

    13. Re:With all this talk of going to Mars... by VAXcat · · Score: 3, Insightful

      When Earth takes the next dinosaur killer on the chin and everything more complicated than a paramecium gets destroyed, it would be nice to have some folks on Luna, Mars, maybe Ceres and Vesta as well, still alive to listen to that good old rock and roll music...that's why we need manned space flight, to colonize against the time that this greasy old blue marble won't support human life.

      --
      There is no God, and Dirac is his prophet.
    14. Re:With all this talk of going to Mars... by Brazilian+Joe · · Score: 0

      That's where that nifty quantum entanglement communication device will come into play...spin the electron here, they'll know there instantly. Come to think of it, our little blue marble could make use of it too (intercontinental communications, cell phones, etc).

    15. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 0

      Earth has existed millions of years... humans are likely to shorten its life span significantly.. at least, to a point that it can sustain human life.. from consuming natural resources at an alarming rate, pollution and weapons of mass destruction created by our very peace loving nations who believe an arms race is fine as long as we remain ahead (rather than disarming).. Rather than trying to find an alternative, which will most likely be less than comfortable place to live, compared to our relative paradise in space, we should try to stop our destructive ways on earth, so we can have another billion years time to figure out an alternative place to live..

      Let's put our money now into clean fuels and increased energy efficiency. rather than polluting sci-fi nerd fantasies.

    16. Re:With all this talk of going to Mars... by zoomzit · · Score: 1

      "He has shown that it is possible to get a mission to the actual planet (not the moons) relatively safely using the same kind of technology that we used to get to the moon in the 1960s."

      Really? We can land on Mars with a video camera, soundstage and lots of paper Mache?

    17. Re:With all this talk of going to Mars... by Anonymous+Luddite · · Score: 4, Funny

      >> time=14412874.3 ms

      So it'll be just like Battlenet?

    18. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 0
      Sadly, it won't work. Read a book on QM, please, and stop perpetuating this crap you read on /. or fark.


      Repeat after me:

      Entanglement cannot be used to communicate.

    19. Re:With all this talk of going to Mars... by igny · · Score: 1

      I have read two of his books, and interestingly, I did not see a single mention of Russia.

      --
      In theory there is no difference between theory and practice. In practice there is. - Yogi Berra
    20. Re:With all this talk of going to Mars... by mr_pins · · Score: 4, Insightful

      I also don't think that we'll ever colonise space/other planets/etc. Earth is where humans evolved, and we'll never find a place as well suited for human life.

      Human beings evolved in Africa.

      Siberia is not nearly as well suited to human life.

      It's so poorly suited to human life, in fact, that unitl relatively recently (definetly less than 20,000 years)
      noone lived there. It was only with the aid of new technology (needle and
      thread to make snug parkas, pants, and mittens)that human beings were able to
      colonize the area.

      For many generations now, Eskimos, etc. have been living on frozen, treeless, utterly
      inhospitable wastelands, erecting domed shelters made of local materials (ice), and walking
      around in the low-tech equivalent of space suits.

      The colonization of inhospitable environments by means of advanced technology has already begun
      and I see no reason to beleive that it won't or shouldn't continue.

    21. Re:With all this talk of going to Mars... by StarsAreAlsoFire · · Score: 1

      You haven't read his book. There are issues that are not addressed therein, and a few which are glossed over. However, all of the points you addressed are directly addressed in the book.

      Lightweight low-power off-planet refining equipment has been "just on the horizon" for decades

      Really? Please site. I would love to read about them.

      Fact is there has never been a serious effort to build one, let along plans to actually need it. Americans can engineer anything, once we decide to do it. And automatic mining equipment really ins't that complex.

      Also, Zubrin et al created a scale model of some of the oxygen mining gear. Worked great, needs to be tested.

      . Mars eats probes (the "galactic ghoul"), and most of the failures couldn't have been prevented by humans being present

      Apples to oranges comparison. And 100% WRONG. I honestly can't think of ONE of the missions which it could be claimed with any certainty would NOT have been saved without a human around to check things out. I can assure you that the massive 'units lesson' mission failure would have been caught well in advance with a human on board *even if nothing else were different*.

      We're just starting to learn the properties of martian dust (if you'll recall, before Spirit and Opportunity experienced natural dust cleaning, it was expected that their panels would have caked over with dust long ago), which poses numerous potential hazards

      Hazards? Like what? Are you claiming that humanity cannot overcome dust with static cling? For one thing, a person with a BROOM can take care of the solar panels, if said person is there. I'm not saying we should ignore the dust as if it isn't a potential source of difficulty; I am saying that it can be overcome.

      I have yet to see a satisfying solution from any reputable source for dealing with bremsstrahlung radiation from galactic cosmic radiation (GCR) in transit

      Chapter 5: Killing Dragons, Avoiding Sirens. Page 113. Covers the radiaton issue lightly.

      Worst case, we need to design a powerful magnetic field to surround the ship. So what?

      lets not even get into how off-the-wall Zubrin's prices for "long-term colonization" transit to Mars are...

      Zubrin's prices are spot on -- for the way he presents it. The way it will/would actually be handled by the US government would indeed make his price tag pitifully wrong.

      Yes, we'll make it to Mars. But we're hardly "almost there", as Zubrin, and especially his devout followers, portray.

      Nice ad hominum attack. Now, what is it that you have to gain by making it? Advancing your own ultra-negative, un-informed viewpoint? It is obvious that you haven't read Zubrin's book, and yet you comment on it as if you have. Your statements about spacecraft failure show that you are in possesion of limited knowledge of how those craft actually failed, and the differences in human rated and 'normal' spacecraft. You managed to avoid saying one positive thing in your entire post.

      B) Mars's pressure is close enough to being a vaccuum: 0.007 atmospheres on average.

      Thats a far cry from a vacuum. One percent of Earths own atmospheric pressure; equivilent to something like 35-40km altitude -- where planes fly.

      Bulky pressure suits eh? You will have pressure suits if you need to leave in a hurry; but the pressure is high enough that low-pressure suits would be fine. Slightly more hinderance than cold weather gear -- actually, compared to cold weather gear of 50 years ago, far less bulky.

      Got issues with a Mars program? Fine. You are free to voice them. But for gods sake, what the hell is the point of being so negative? You serve no one any benifit. Nevermind that you are also wrong on most counts, and that every single one of the issues you brought up are well known and even addressed in the very book you spite.

      I would not have responded but for the significant annoyance brought on my the pointle

    22. Re:With all this talk of going to Mars... by YA_Python_dev · · Score: 2, Informative
      ... an engine with an ISP of 11,000

      To put this in contest: a good solid boost motor has an ISP of 290s and the Hall effect thruster of the Smart 1 spacecraft has an ISP of 1,600s.

      --
      There's a hidden treasure in Python 3.x: __prepare__()
    23. Re:With all this talk of going to Mars... by DerekLyons · · Score: 2, Insightful
      With all this talk of going to Mar people should really pay more attention to Robert Zubrin. If you haven't read his book, I suggest you do so. He has shown that it is possible to get a mission to the actual planet (not the moons) relatively safely using the same kind of technology that we used to get to the moon in the 1960s.
      Umm... No. Zubrin has a very bad habit of treating technologies that are still mostly paper as if they were well tested and proven and quite ready to deploy into the field. I can see where his handwaving could lead you to believe that the technologies and systems are of the 'same kind' as used in the 60's means they are proved etc... But the trick likes in the details of the meaning of 'the same kind'. I.E. the stuff he proposes to use to go to Mars resembles the stuff used in the 60's in the same way a modern desktop is the 'same kind' as 60's mainframe. But unlike a modern desktop - Zubrin's technology is mostly vaporware.
      (Of course, with what we have now, it would be "easier" and safer", and those are in quotes merely because I am appreciative of the difficult and danger.)
      What would be easier and safer? Going to the moon now? No. Going to Mars now as opposed to the 60's or when Zubrin wrote his books? No.
      We (as humans, not just as specific country-people) need to recapture our pioneering spirit, and get someone to Mars. What we'll learn and accomplish will far outweigh the danger. Imagine if people had been too initimidated to round the horn of Africa, cross the Atlantic ocean, or go to moon! It's time we got that adventurous spirit back, and applied it planet-wide.
      We (as humans) have never had a pioneering spirit to recapture. As a race we are mostly an extremely conservative lot that places much faith in the old ways and regards the new with deep distrust.
    24. Re:With all this talk of going to Mars... by Rei · · Score: 4, Informative

      Oh, great, another time consuming argument with a Zubrin fanboy.

      You haven't read his book

      Outright wrong. Unlike you, I wouldn't be caught dead debating material I haven't read about.

      Really? Please site.

      The word is "cite". A "site" is a location. Here is your "cite": Goal #4 of the Apollo program was to "develop man's capability to work in the lunar environment.". Here's a Lunar Colony from 1969. Complete with a smelter. The concept of extracting resources from the moon continued with numerous R&D processes in the late 60s and early 70s; ton-quantities of regolith simulant were produced for the experiments. There was renewed interest in the 1980s with Reagan's call for lunar colonies by 2005.

      Mining under most proposals was to be done simply on regolith, using a three drum slasher. Cutler and Krag proposed and investigated a carbothermal oxygen production plant that processed ilmenite desposits. Another 1985 study investigating an entire proposed colony ("Selenopolis"), was to produce 500,000 tons of oxygen per year.

      And automatic mining equipment really isn't that complex.

      That's bloody hilarious. *Manned* mining equipment produced where weight is no object (here on earth) is quite complex. Have you ever seen the work that goes into setting up, for example, a tunnel boring system? Mining equipment costs millions of dollars per piece, and it's not for no good reason. Add to that the ridiculous weight, the oxygen-requiring temperature-sensitive engines, etc, and you're stuck paying brand new R&D costs without the benefit of bulk sales and having to use things like lithium-aluminum to cut mass.

      Also, Zubrin et al created a scale model of some of the oxygen mining gear. Worked great, needs to be tested.

      We don't even know specifically where water ice is, yet! (we have some ideas). By the way, have you seen how well electryolysis devices as such perform in hostile environments, even with extensive testing and two decades of development? The US has nothing like it qualified for long term missions - Elektron is the best thing out there (we have some heavy short-term devices).

      Loss of a critical component, and that's the end on Mars. No "repairs" being sent up on "the next flight", no massive backups to "tide you over" (this refers not only to oxygen, but to everything critical for life).

      Apples to oranges comparison. And 100% WRONG. I honestly can't think of ONE of the missions which it could be claimed with any certainty would NOT have been saved without a human around to check things out.

      That's because you've never read about the subject. I hate having to replace a textbook for people like you.

      Mars 1960A: Failed to reach earth orbit due to catastrophic vehicle launch failure. Nothing humans could have done.

      Mars 1960B: Same

      Mars 1962A: Broke into pieces after being launched; pieces remained in Earth orbit for a few days. The equivalent of having more dead humans.

      Mars 1: Communication lost in transit for unknown reasons. Depending on the cause, humans may or may not have been able to salvage it.

      Mars 1962B: Made it to earth orbit. Rocket fire for transfer orbit destroyed the craft. Humans would have perished.

      Mariner 3: Protective shield from earth launch failed to detach. The extra weight prevented it from reaching Mars. As most manned Mars missions don't allow for EVA due to the difficulty and extra mass, at the

      --
      What a crazy random happenstance!
    25. Re:With all this talk of going to Mars... by uberdave · · Score: 1
      • There will never be another dinosaur killer. The dinosaurs are all dead already. [grin]
      • The last time Earth got struck, there were plenty of large life forms kicking around.
      • We do not even have the capability of creating a self sustaining biosphere on this planet. What makes you think we could do it somewhere else?
      • Since we can't build a self sustaining biosphere, anything we do build will be dependant on supplies from Earth. It will therefore be just as vulnerable as Earth itself
      • Even if we were capable, setting up a single colony would cost trillions, if not quadrillions of dollars.
      In short, we'd be much better off building a handful of underground and/or underwater bunkers. Besides, if you are building an off-world colony, as a humanity bank, then you'd be better off not building it on a moon or a planet, but in orbit (say L5). That way, if an asteroid threatens the colony, it can be moved out of the way. Otherwise, you're just increasing the odds of being struck.
    26. Re:With all this talk of going to Mars... by Rei · · Score: 3, Informative

      Correction: SpaceX, not SpaceDev. :) Big difference.

      Also, I forgot to mention one spacecraft that survived that probably would have killed any human cargo on it: Mars Global Surveyor. It had been designed to aerobrake at Mars with its solar panels. However, a joint partly gave way during the maneuver, and threatened to destroy the craft. So, they gave it a much gentler aerobraking approach that made it take many months longer than normal to circularize its orbit - the only realistic solution if they didn't want to tear the craft to shreds. Not a big deal for an unmanned spacecraft; it went on to produce a treasure trove of information over the years. However, for humans, a several month delay means, at best, a failed mission.

      --
      What a crazy random happenstance!
    27. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 0

      I'm curious as to why you think it couldn't be used to communicate? Isn't that one of the properties of entanglement, that what happens to one side happens to the other?

    28. Re:With all this talk of going to Mars... by mikael · · Score: 2, Interesting

      But with a cheap launch technology, it's the individuals who will truly explore space. Once we're out of Earth's gravity well, private explorers could pretty much go anywhere provided they stocked enough food. Solar cells will provide unlimited energy, and a solar sail the unlimited propulsion. Advanced recycling equipment will minimize the loss of water and other necessities, and a decent internet connection will keep the travelers from feeling too cut off.


      Many of those problems have already been solved by the ocean liner industry. Under financial pressure to reduce operating costs, they have been working on ways of make cruise ships more fuel efficient (using azipods), along with working out ways to make life comfortable for passengers, the 'space ratio').

      Some (the Queen Mary 2) even have their own planetarium.

      If we could work out how to build or launch something like one of these liners in Earth orbit (using standard construction techniques), and add radiation shielding, we could cruise the solar system in style and safety.

      The specification of an ocean liner read like something out of Star Trek.

      Power consumption = 118 Megawatts,
      Propulsive power = 86 Megawatts
      Steering = 4 azipods (2 fixed, 2 directional)
      Decks = 15
      Cabins = 1330 (all with Internet access)
      Passengers = 2620
      Crew = 1310

      For comparision, the space shuttle can transport 200 tonnes back to Earth (landing weight), and consumes 7 - 12 Kilowatts of power for all of its electrical systems, while the booster rockets and main engines are rated at 11.7 GigaWatts

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    29. Re:With all this talk of going to Mars... by drsquare · · Score: 0, Troll

      1. If Earth gets hit by an asteroid which ruins the environment and the weather, putting us into an ice-age, Earth will STILL be the most hospitable place for humans in the universe.

      2. People on non-Earth planets will not survive due to the wrong gravity.

      3. People who call the moon 'Luna' are an argument for post-natal abortion. I bet you call the sun 'Sol' and Earth 'Terra'.

      4. I'd rather live on post-apocalyptic Earth than an asteroid, either rotting in the zero gravity on the outside or psychologically rotting spinning round and round inside a giant metal cave.

      5. If we all get killed, will we care if some other humans are living somewhere else?

    30. Re:With all this talk of going to Mars... by ImaLamer · · Score: 1

      Why worry about asteroids? Even the latest playboy points out that all we have to do is paint them white - turning them into solar sail type devices and sending them packing...

    31. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 0
      At least one physicist belives that Isp is not the value of interest for something like this.

      This graph is especially interesting.

    32. Re:With all this talk of going to Mars... by Anonymous Coward · · Score: 0

      Entanglement cannot be used to communicate.

      Correction, entanglement cannot be used to communicate faster than light. Although I still haven't gotten a satisfactory answer as to why. Suffice it to say, though, that the universe conspires against our attempts at FTL anything.

    33. Re:With all this talk of going to Mars... by AKAImBatman · · Score: 2, Informative

      Here's a chart. The surface of the moon to LEO is 5.5 km/s (and visa versa). Transfer between LEO and Moon orbit is 3.9 km/s. Transfer from LEO to Mars Orbit is 4.7 km/s. Transfer from LEO to Mars Surface is 10.2 km/s (and, again, visa versa).

      Sooo... the lunar surface is about 1/2 of the cost of going to Mars. However, to go to the surface of Mars' moon Deimos, you only need 5.6 km/s! How weird is that?

    34. Re:With all this talk of going to Mars... by newpath4comVersion2 · · Score: 1

      Smart people? What's that? Where are they? The last really smart person was Jesus Christ when he foresaw the planet breaking apart from us drilling it of oil, burning up the liquid part of our planet to stay warm. 2000 years in advance. Now THAT was a smart person. Are you saying it's time for another one like him to appear? How will we recognize such a one? Will he be "part of the system" or be another who rejects the Pharissees and makes everyone so mad at him he can't get the funding? hahahaha Looks like check-mate. Looks like if another smart person comes along we'll kill him a lot faster than they did the first one.

    35. Re:With all this talk of going to Mars... by khallow · · Score: 1
      1. If Earth gets hit by an asteroid which ruins the environment and the weather, putting us into an ice-age, Earth will STILL be the most hospitable place for humans in the universe.

      But it won't be the most happening place for humans in the universe, will it?

      2. People on non-Earth planets will not survive due to the wrong gravity.

      One of those little things we haven't gotten around to testing. Maybe we can survive easily life on the Moon or maybe we get messed up at 0.9 Gee. If government agencies were serious about manned space exploration, we'd have something built (lunar base or whatever) to test that.

      3. People who call the moon 'Luna' are an argument for post-natal abortion. I bet you call the sun 'Sol' and Earth 'Terra'.

      Awwww, it's a cute pretentious. Don't get so stuffy.

      5. If we all get killed, will we care if some other humans are living somewhere else?

      Yes.

    36. Re:With all this talk of going to Mars... by khallow · · Score: 1
      We do not even have the capability of creating a self sustaining biosphere on this planet. What makes you think we could do it somewhere else?

      Yes we do. For starters the Earth itself is a self-substaining biosphere and despite claims to the contrary is holding up quite well. Second, we have some pretty stable microsystems. For example and IIRC, there's a biologist in Hawaii who had made small self-contained systems that have survived for years on light alone (glass spheres with algae, shrimp, and snails).

      * Even if we were capable, setting up a single colony would cost trillions, if not quadrillions of dollars.

      This isn't based on reason. There's nothing inherently expensive about a space colony. And a trillion dollars goes a long ways. It's about two thirds of the total estimated cost of the global oil infrastructure from oil pump to the gasoline pump including virtually all motorized vehicles.

    37. Re:With all this talk of going to Mars... by uberdave · · Score: 1

      WE did not set up the Earth's biosphere, and it is a LONG way between a small aquarium with a simple food chain balance, and a system with multi-generational stability with enough diversity to avoid inbreeding.

      True, my numbers were not based on reason, only a vague guess. However, a little bit of googling did turn up some interesting numbers. NASA estimates that it will take 10 tonnes of supplies/structure per person to maintain an off-world colony. For biodiversity purposes you need 10,000 people. At a cheap $1000/kg launch cost, that is a hundred billion dollars just to get the people and raw materials into orbit. You haven't built any of the infrastructure needed to transfer the materials to the launch site(s). You haven't built the launch vehicles. You haven't tested in orbit construction or built/launched the robots needed to do it. On top all that, you still need to research how to put together a self sustaining biosphere.

      Bottom line, it just ain't gonna happen unless we have irrefutable proof that the Earth is going to be destroyed, and quite probably not even then.

    38. Re:With all this talk of going to Mars... by m50d · · Score: 1

      Thanks, that makes things clearer. When I said the moon I meant one of Mars' moons, I know that going to Mars is cheaper delta-v wise than our Moon, and it makes sense that Deimos would be (half the energy in orbital mechanics is the deceleration, for a smaller moon you need less of it). Getting home from Deimos takes a total of 1.8km/s, while home from Mars surface is 6.4km/s. That's the point I was trying to make.

      --
      I am trolling
    39. Re:With all this talk of going to Mars... by khallow · · Score: 1
      Thanks for the remark on mass per person. That is instructive.

      WE did not set up the Earth's biosphere, and it is a LONG way between a small aquarium with a simple food chain balance, and a system with multi-generational stability with enough diversity to avoid inbreeding.

      Frankly, I don't see the problem. Sure it's a "long way". But it's obviously a solved problem. We already have a biosphere to copy. I haven't been impressed by the past attempts to create one.

      For biodiversity purposes you need 10,000 people. At a cheap $1000/kg launch cost, that is a hundred billion dollars just to get the people and raw materials into orbit.

      Several things. First, $1000/kg isn't cheap. I consider $100/kg to be relatively cheap and attainable with current technology especially if something like a large colony is driving the demand. The key is volume. We aren't launching in volume, hence launch costs are high. Second, a lot if not most of that infrastructure mass can be found wherever those 10,000 people end up.

      You haven't built any of the infrastructure needed to transfer the materials to the launch site(s). You haven't built the launch vehicles. You haven't tested in orbit construction or built/launched the robots needed to do it. On top all that, you still need to research how to put together a self sustaining biosphere.

      A lot of that will get done (*if* it hasn't already!) no matter if or when we build a real colony. That's because most of it is useful for other more profitable purposes than just building a colony. Also, we already have infrastructure in place for a lot of that. We have railroads and roads for transfering materials to launch sites.

      I think the real progress will be made by the space tourism industry. IMHO, we will see tourists in orbit (from this industry) in ten years and space hotels in twenty.

    40. Re:With all this talk of going to Mars... by uberdave · · Score: 1
      We already have a biosphere to copy.

      Yes, let's see... we'll need 5.1 × 10^18 kg of air, 1.4 x 10^21 kg of water (of various salinity), 6 x 10^24 kg of various minerals, soils, and rocks. Next we'll need algae, fungi, bacteria, plankton, krill, ferns, apple trees, orange trees, lima beans, green beans, black eyed peas, garbonzo beans, lentis, green peppers, red peppers, milkweed, monarch butterflies, mosquitos, ruby throated humming birds, blue whales, humpback whales, killer whales, bottle nose dolphins, harbour seals, holstein cows, jersey cows, albino goats, dormice, starlings, starfish, aardvarks, kangaroos, wallabies, koala bears, polar bears, sturgeon, blue jays, willow trees, black widow spiders, scorpions, pumas, grey wolves, mongooses, bengal tigers, bamboo, soy beans, wheat, barley, oats, tobacco, poplars, beavers, geckos, skinks, copperheads, rattlesnakes, penguins, puffins, walruses, rhinoserouses, hippopotamusses, octopuses, shrikes, walleye, elms, potatoes, tomatoes, german sheppards, crickets, bluefish, clams, oysters, rattan, rice, zebras, am I making my point yet?, raccoons, eagles, hawks, tuna, great white sharks, head lice, spitting cobras, pufferfish, pumpkins, honeydew mellons, grapes, chocolate point siamese, love birds, bluegill, chickens, kelp, cuttlefish, cocoa, ragweed, poppies, sesame, sage, tumbleweed, sequoia, coral snakes, goldfish, hornets, tetras, squirrels, chipmunks, ducks, palm trees, sugar cane, raspberries, peach trees, pigs, coral, sea urchins, sea cucumbers, peregrine falcons, viruses, pirhannna, skunks, flies, grass, cotton, jellyfish, sardines, guppies, marlin, dung beetles, otters, ferrets, barn swallows, undiscovered species #14, kale, mulberries, balsa, shetland ponies, poison dart frogs, grizzly bears, impala, chetahs, coyotes, onions, parsley, sage, rosemary, thyme, tulips, chrysanthemums, rhubarb, seagulls, albatross, budgies, mahogany, wildebeasts, bats, green aligators, long necked geese, humpty backed camels, chimpanzees, cats, rats, elephants, ladybugs, lemurs, warthogs, meercats, giraffes, and hundreds of thousands of others that I've missed.

      In other words, it's only a "solved problem" if you're God, Q, or Magrathean. We humans are going to have to figure out what's needed, what isn't. This research is where all the money is going to wind up going.

      As far as launch costs are concerned, current estimated launch costs are:
      • $2400/kg (Russia)
      • $6000/kg (ESA)
      • $7000/kg (China)
      • $40,000/kg (NASA)
    41. Re:With all this talk of going to Mars... by khallow · · Score: 1
      So what's your point? Sure there are a lot of organisms living in the Earth biosphere. Does seem kind of complex till you realize that the vast majority of them don't serve a vital role in the ecosystem and those that do are many times duplicated. We've figured out the elements that are needed and a number of recycling chains that need to occur, eg, the cycles of elemental carbon, oxygen, and nitrogen. Frankly, I think the hard work has been done. It's just a matter of figuring out a few systems that will work.

      As far as launch costs are concerned, current estimated launch costs are:

      • $2400/kg (Russia)
      • $6000/kg (ESA)
      • $7000/kg (China)
      • $40,000/kg (NASA)

      These are all government or government subsidized programs. Some like NASA are particularly expensive since the launch infrastructure is being used a lot less than originally planned.Even private industry is currently heavily subsidized by government.

      My take is that despite the lack of competition in the space launch business, launch costs have steadily declined over the past couple of decades. The next couple should IMHO be much more significant because I think we'll see a substantial increase in space tourism and other nongovernment commerce and projects in space. Some new entries like SpaceX promise substantially low launch costs (though currently their advertised rates are on par with the Russian program).

    42. Re:With all this talk of going to Mars... by VC · · Score: 1

      *best* *response* *ever*

    43. Re:With all this talk of going to Mars... by zero_offset · · Score: 1

      New spacecraft design almost usually runs overschedule and overbudget.

      You appear to have misspelled "NASA" at the start of your sentence. :)

      --

      Slashdot quality declines as the number of hot grits posts decreases. - Provolt's Law, Apr-09-2005

  3. I hope they pack well by aldeng · · Score: 5, Funny

    If they forget the shotgun they'll be screwed on like the fourth lebvel.

    1. Re:I hope they pack well by Valacosa · · Score: 4, Funny

      "Why would we need chainsaws on Mars?!"

      --
      "Live as if you'll die tomorrow." Ridiculous. You could die later today.
    2. Re:I hope they pack well by CSG_SurferDude · · Score: 1

      I just hope they have enough spam filters to stop all the freaking Martian Buddy spam!

    3. Re:I hope they pack well by Anonymous Coward · · Score: 0

      "Why would we need chainsaws on Mars?!"

      To cut down Martian trees, duh.

    4. Re:I hope they pack well by Rosco+P.+Coltrane · · Score: 2, Funny

      "Why would we need chainsaws on Mars?!"

      To finish off Spirit and Opportunity: they just won't die and G.W. can't wait to disband the rovers' team and divert the money to his grand plans for man walking on Mars, or the moon base, or whatever.

      --
      "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
    5. Re:I hope they pack well by REggert · · Score: 1

      Somebody obviously didn't get the joke.

      --

      cp /dev/zero ~/signature.txt

    6. Re:I hope they pack well by halltk1983 · · Score: 1

      But ten you don't get a free chain gun early on...

      --
      Watch for Penguins, they eat Apples and throw rocks at Windows.
    7. Re:I hope they pack well by vandon · · Score: 1
      If they forget the shotgun they'll be screwed on like the fourth lebvel.
      They need to bring their own duct tape for the flashlights. As everyone knows, there's no tape on mars.
    8. Re:I hope they pack well by Anonymous Coward · · Score: 0

      So does this mean the secret project code-named big fragging gun has completed a prototype?

  4. Great idea! by Anonymous Coward · · Score: 1, Insightful

    I think we should go.

    I know money could be spent elsewhere, but hey, isn't it the exploratory nature of humans to venture into the unknown?

    1. Re:Great idea! by Rosco+P.+Coltrane · · Score: 2, Interesting

      I know money could be spent elsewhere, but hey, isn't it the exploratory nature of humans to venture into the unknown?

      You know, I hate to break it to you but most exploration missions of the past were privately funded, either by capitalists in search of new opportunities, or by rich idealists. Those that were publicly funded were for geopolitical reason, the most obvious example being the race to the moon.

      So, since no private enterprise today has enough cash to fund something that big, and the US government has nobody to flex muscles at anymore, and the US deficit is already big enough thanks to our recent exploration of Iraq, who will fund the mars mission?

      As for the Russians, well, I'll believe they can do it when they can feed their population adequately without any external subsidies.

      --
      "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
    2. Re:Great idea! by bc90021 · · Score: 2, Interesting

      ...who will fund the mars mission?

      Use the Olympic model, and ... a consortium of companies. Imagine this: IBM, Microsoft, Blue Origin, Virgin Galactic, Mojave Aerospace, Scaled Composites, Johnson & Johnson, McDonalds, Apple, Coca-Cola, and a whole group of large companies got together, and invested a small portion of their profits for two years into a Mission to Mars program. It could be done. They could form a company just for that (ala the IOC), and of course, there would be advertising. They could all be "Proud Sponsors of the Mission to Mars" in much the same way they all pay to help with the Olympics.

    3. Re:Great idea! by Thunderstruck · · Score: 1

      iYou know, I hate to break it to you but most exploration missions of the past were privately funded, either by capitalists in search of new opportunities, or by rich idealists./i

      But then again, in the past most roads, libraries, schools and hospitals were privately funded too.

      --
      Trying to use sarcasm in text-based forums does not work.
    4. Re:Great idea! by Rosco+P.+Coltrane · · Score: 2, Interesting

      They could form a company just for that (ala the IOC), and of course, there would be advertising. They could all be "Proud Sponsors of the Mission to Mars" in much the same way they all pay to help with the Olympics.

      Do you really hope to get a bunch of companies to pony up billions of dollars for a risky mission into the unknown, and tell them they'll have a return on investment with advertising alone? now that's naive...

      The olympics model works because the initial investment isn't all that great (compared to a mars mission anyway), it's super-safe, it guarantees return on investment with ads, but also derivative products, direct sales, and (most important) the use of much admired athletes as walking talking billboards: Nike will sell shoes by getting some sportsman to wear them, the underlying idea being that *you too can be that man with our shoes*. They won't sell any if the only thing they can say is *the shoe that goes to Mars*.

      --
      "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
    5. Re:Great idea! by bc90021 · · Score: 2, Insightful

      First, It doesn't have to cost billions of dollars. Just because that's what the government will spend doesn't mean that's what it will cost. Private companies would have an incentive to make sure that things weren't ridiculously expensive, whereas the government has no such incentive. (They can print money and/or raise taxes.)

      I'm sorry that your imagination is so limited (I wasn't just talking advertising). Think of all the technology that will come out of it, and imagine if those companies that joined could get license free use of the technologies for X number of years. Imagine that those companies get to reap the rewards of scientific research done in low to zero gravity in the time it takes to get there and back. Imagine that those companies get exclusive rights to mineral finds on the red planet based on the size of their contributions over a defined field of area.

      Do you still think there might be no way to get them to pony up money?

    6. Re:Great idea! by Reverend528 · · Score: 1

      Although it sounds interesting, a trip to mars would be pretty pointless and useless. Travelling to the moon used to seem like a good idea until we went there. As it turns out, the moon is kind of far away, has no useful resources, and cost a lot of money to visit. As a result, we haven't gone back in quite some time.

      Going to mars has pretty much the same drawbacks, but more extreme. I see no point in blowing a large sum of cash to go somewhere only to discover that there's not really anything worth seeing.

    7. Re:Great idea! by bfree · · Score: 2, Insightful

      I think the Big Brother model would be far more realistic. Get the telecoms and broadcast companies to pay the upfront costs and then recoup those costs through advertising (add some product placement) and phone/text polls to vote for the regular evictions?

      More seriously, if you really think this wouldn't be the largest media event in the history of the planet (especially if it is devised as such) then I guess you already found your way off the planet. I wouldn't see much risk from an advertisers point of view. If the mission is a success you get massive coverage on landing and return. If the mission fails badly (i.e. craft failure killing all), you get massive coverage at failure time and continued significant coverage for a long time, if anyone survives it would go crazy. Finally if you have a trivial failure (aborted mission, crew safe) you just go again (and if you've any sense you have a whole backup plan ready, including craft as if you don't need them you've got some themepark attraction). Any company with the power to invest at the sort of levels required to make this work could certainly exploit it for a good return.

      --

      Never underestimate the dark side of the Source

    8. Re:Great idea! by krunchyfrog · · Score: 0
      As Mr Burns said:

      This isn't rocket science, it's brain surgery!

      --
      printf($randomline(sigs.txt) \n "-- "$randomline(authors.txt));
      -- myself
    9. Re:Great idea! by w98 · · Score: 1
      if those companies that joined could get license free use of the technologies

      Microsoft, license-free????!!1!one!11

      Bwwaaaaaaaaaahahahahahahahahahahahahahahaaaaa

      (gasp)

      ..aaaahahahahahahahahahaha

      3. Profit

    10. Re:Great idea! by Rei · · Score: 1

      Private companies would have an incentive to make sure that things weren't ridiculously expensive

      I hate to break it to you, but private companies built almost all of our rockets. In many cases, the same companies have the full line of contracts, from production to launch, so any costs incurred are at their expense.

      What about private launch services? Check out companies like Orbital Sciences, SeaLaunch, etc. Each developed their own rockets (albeit on the backs of existing technology; however, you kind of have to stand on the shoulders of giants if you want to go anywhere) with private fundings. Cheaper? Yes, cheaper than average. Cheap? No way.

      Now, that doesn't mean that big improvements aren't impossible. SpaceX is a good company to keep an eye on, for example; they have a nice design, they're almost done with their first rocket (i.e., they'll have a new capital source coming in soon), and they're promising ubercheap prices. But pretending that things would all be better if only "private enterprise" would step in is simply not true; our rocket industry was built by private enterprise, and a few companies have their own fully-independent launch services and ponied up R&D capital.

      And yes, getting to Mars will take billions; I don't have time to get into *why* things cost so much, but lets just cover a single piece of technology among thousands that would be needed, to give you an idea. Do you know how much large jet engines cost? New, they can cost millions - and these are mass-manufactured items. Now realize that a single SSME (Space Shuttle Main Engine) could accelerate a fully loaded 747 at several G's, and deals with temperatures hotter than the boiling point of iron- and these items are hardly mass produced. You can go with a "somewhat mass-produced" disposable engine, of course, but then you're tossing away your capital investment with every launch.

      The engineering challenges for good rocket technology are incredible. Even the ever-overoptimistic Zubrin doesn't pretend that a trip to Mars won't cost billions. No company has the R&D capital to spend on such a risky venture (especially given how often Mars eats spacecraft).

      --
      What a crazy random happenstance!
    11. Re:Great idea! by vertinox · · Score: 1

      Going to mars has pretty much the same drawbacks, but more extreme. I see no point in blowing a large sum of cash to go somewhere only to discover that there's not really anything worth seeing.

      Replace the word Mars with America and set our time back to 1500. Take a look around. Not much worth seeings except some trees and the Natives (although they are something of interest even more so than most people today at least to me)

      Fast forward 500 years. Take a look around. Yep... How about now? Things of interest?

      The European explorers didn't settle the place right away. They spent a good deal of time explorer the new world and looking for hidden treasures. After finding only a bit of gold and a great deal of emtpy land and a bunch of natives they wrote it off until the settlers came and then it became much more interesting. At least to the Europeans... (I don't know about what the Native Americans thought.)

      There might not be anything on Mars right now, but if colonize it and terraform it we'll have a whole world to have interesting thing in. Personally, I almost would see mars as a place to start new nations to break away from the mother planet. Heck, don't like the new world order government of 2020 and have a few million dollars to blow? Move to mars! Make em come for you to pay taxes now!

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    12. Re:Great idea! by danila · · Score: 2, Insightful

      Private companies are not inherently cheaper. The "incentive" you speak of can only exist if there is strong competition and a large market. This is like natural selection - you need a large enough pool of companies so that you can weed out the less efficient ones.

      There is little competitive pressure in the space industry - that's why we saw tens of companies going out of the business of making jet airliners and so few companies going out of the business of making rockets. When you don't have competitive pressure, it all depends on the R&D. And private R&D is no more efficient than that done by government.

      --
      Future Wiki -- If you don't think about the future, you cannot have one.
    13. Re:Great idea! by drsquare · · Score: 1

      Replace the word Mars with America and set our time back to 1500. Take a look around. Not much worth seeings except some trees and the Natives

      Room to live for people who didn't like the Old World. Not really the same as the Moon. The Americas could support life. Vast tracts of land, grassy plains, hills, forests, lakes, rivers, everything you need to build a new life. On the moon, you have rocks and corrosive dust. On Mars, you have rocks and dust storms. You'd have to live inside bio-domes, and you can do that on Earth, but with other perks like contact with everyone else, and proper gravity and sunlight.

      If you want to simulate life on another planet, go and live at an antarctic research station. Want to simulate space travel? Go and live on a submarine for several years without ever leaving it.

  5. In soviet russia... by bigtangringo · · Score: 0

    gravity captures YOU!

    Ok, yeah that was lame.. I'm sorry.

    --
    Yes, I am a smart ass; it's better than the alternative.
  6. Ok, ok, I know. Enough already, but... by racecarj · · Score: 0

    In Soviet Russia... Mars visits you!

    1. Re:Ok, ok, I know. Enough already, but... by BigWhiteGuy_27 · · Score: 0

      No, no, no, its....
      In Soviet Russia, Mars moons you!

    2. Re:Ok, ok, I know. Enough already, but... by Anonymous Coward · · Score: 1, Funny

      No, no, no, it's...

      In Soviet Russia, Earthlings invade Mars!

  7. Doomed by ZephyrXero · · Score: 1

    Just as long as we don't attempt to create a transporter once we're there...

    --
    "A truly wise man realizes he knows nothing."
    1. Re:Doomed by iibbmm · · Score: 1

      Now why the hell would we do something so impish?

    2. Re:Doomed by Verteiron · · Score: 1

      With the world as full of mindless zombies as it is today, I would not be at all surprised.

      --
      End of lesson. You may press the button.
    3. Re:Doomed by TripMaster+Monkey · · Score: 1


      Well...that sounds awfully like a revenant...
      (No..that's no good...hold on...)
      Well, you're just a big mancubus...
      (No, damnit...that sucks too...damnit!)
      That's a remarkably trite thing to say...
      (Yes!)

      --
      ____

      ~ |rip/\/\aster /\/\onkey

    4. Re:Doomed by MenTaLguY · · Score: 1

      In Soviet Russia, Communists hate G-d?

      --

      DNA just wants to be free...
    5. Re:Doomed by multiplexo · · Score: 1
      No, In Soviet Russia, God doesn't believe in communists.

      --
      cheap labor conservatives - they want to keep you hungry enough to be thankful for minimum wage.
    6. Re:Doomed by MenTaLguY · · Score: 1

      Eh, it was a riff on the low-modded parent comment. I probably should have quoted it.

      --

      DNA just wants to be free...
  8. Moons made of rocks by Dancin_Santa · · Score: 1, Interesting

    Just like our own Moon, Mars' moons were probably formed at the same time that Mars was formed. As the galactic dust swirled around the Sun, it slowly clumped together and grew into large planets. As each planet grew larger, they became an elliptical focal point for the surrounding space dust and trapped moons into orbit around themselves.

    So that's why we have moons around planets. It's also why they rotate and revolve very periodically.

    Phobos is going to be just like our moon. Dead.

    Better to send a probe to one of those moons with liquid like Titan or Europa. Much more interesting things to find there.

    1. Re:Moons made of rocks by jericho4.0 · · Score: 1
      Phobos is likely a captured asteroid, possibly from outside of the solar system. It is also outgassing something, probably water. Those facts make it quite interesting.

      If Phobos is found to contain lots of water, considering its small size and low orbit, how difficult would it be to smash it into Mars? There's a project I could get behind....

      --
      "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
    2. Re:Moons made of rocks by myside · · Score: 1

      Actually, I'm not sure the data supports this idea anymore. I think the theory with the most support these days is the collision theory.

    3. Re:Moons made of rocks by Anonymous Coward · · Score: 0

      I don't know about Mars's moons, but the leading theory regarding Earth's moon today is that it was created when a Mars-sized body collided with the early Earth, knocking off a hunk of it.

    4. Re:Moons made of rocks by technomancerX · · Score: 2, Informative
      Nice, except the current prevailing theory is that our moon was formed by a massive impact after the primary planetary body of earth was formed. Also, Phobos doesn't fit the accretion theory that you expound in your post.

      But you are most likely correct that Phobos will be dead.

      --
      .technomancer
    5. Re:Moons made of rocks by Anonymous Coward · · Score: 0

      Not to discount the experts or anything, but wouldn't an event like that result in a period quite different from the very regular period of our moon (making one rock spin faster than the other)?

    6. Re:Moons made of rocks by Mr.+Maestro · · Score: 1

      Rocks? Everyone knows the moon is made of cheese. Yours Truly, The Dairy Farmers of America.

    7. Re:Moons made of rocks by WormholeFiend · · Score: 1

      Just like our own Moon, Mars' moons were probably formed at the same time that Mars was formed. As the galactic dust swirled around the Sun, it slowly clumped together and grew into large planets. As each planet grew larger, they became an elliptical focal point for the surrounding space dust and trapped moons into orbit around themselves

      Does anyone else find this theory sounds like pure rubbish?

      If the planets and (most of) their moons had formed this way, wouldn't they tend to be more homogenous in composition? Or at least have progressive differences based on their distance from the Sun?

      Even the planets which have several moons, Jupiter and Saturn, have moons that are totally different from each other.

      You would expect more similarity between them if they were formed from residual dust swirling around their planet.

    8. Re:Moons made of rocks by bazio · · Score: 2, Insightful

      Phobos will indeed likely be dead, since it is far too small to hold an atmosphere of any substance, but that's not the point of the mission. Since Phobos is so small (and hence, has much lighter gravity) it is much easier to land on and take off from than the main planetary body. The escape velocity on Phobos is in the neighborhood of .01 km/s, compared to Earth's +/- 11 km/s at the equator. As such, it provides a decent staging base for missions to the planet itself. Also, much attention has been paid to Mars, and relatively little to its sattelites, so it would be a chance for some interesting science.

      Additionally, as others have stated, the currently accepted theory for the formation of Earth's moon is that, while the Earth was still hot (i.e., mostly molten), a rather large object smacked the crap out of it (that's a technical term) and made it spit out a ball of really hot stuff that took up orbit around Earth and cooled (faster than the Earth, due to it's size) into Luna. However, Phobos does not seem to have been formed in this way. Phobos is a rather oblong shaped object, unlike objects that coalesce from space debris, which tend to be spherical. The prevailing theory on Phobos is that it is a captured asteroid, likely a carbonaceous chondrite asteroid, which gives us additional scientific reason to go there.

      --
      Set the bar high, then bring a tall ladder.
    9. Re:Moons made of rocks by Waffle+Iron · · Score: 2, Interesting
      Not to discount the experts or anything, but wouldn't an event like that result in a period quite different from the very regular period of our moon (making one rock spin faster than the other)?

      Early in the moon's history, it was much closer to earth, the earth's day was far shorter, and the moon's day wasn't locked to its orbital period. Over billions of years, tidal forces have gradually changed things to the current state. In fact, the moon is still slowly receding from the earth as some of the earth's rotational momentum continues to get transferred to the moon's orbital momentum via tidal interactions.

    10. Re:Moons made of rocks by Xenoflargactian · · Score: 2, Informative

      Slightly off-topic: Also, the mass of the moon isn't evenly distributed. There is a dense area inside it that's off-center that was attracted to earth moreso than the rest of the moon, and over billions of years caused that side to always face earth.

    11. Re:Moons made of rocks by Xenoflargactian · · Score: 1
      If the planets and (most of) their moons had formed this way, wouldn't they tend to be more homogenous in composition? Or at least have progressive differences based on their distance from the Sun?
      They do have progressive differences.

      The inner planets are rocky, while the outer planets are gaseous(lots of hydrogen). Why? Heavy atoms are made in the sun's fusion reactions. They occasionally get shot out of the sun, and heavy particles are more affected by gravity than light ones, so they're likelier to find a body to collide with sooner. In fact, probably everything heavier than hydrogen was made in our sun(or some other star).

      Moons can be made several ways. One of them is the way you described. Is it that hard to believe? Several planets have rings of dust and rocks. If you wait long enough, some of those particles will stick together.

    12. Re:Moons made of rocks by plexx · · Score: 1

      "Better to send a probe to one of those moons with liquid like Titan or Europa. Much more interesting things to find there." I agree. That's why we are doing it. (Titan) http://www.nasa.gov/mission_pages/cassini/whycassi ni/16jan_titan.html Off Topic: I know we have a lot of time to plan ahead for the death of our sun (and planet) with it being about 4.5 to 5 billion years away. But, as we discovered with Y2K, we do tend to wait to the last minute to take care of things. I just hope "we" have a plan for somewhere to go so that our entire species doesn't disappear forever. That said, it's never too soon to start hopping planets and planet like objects. Even if we could just stay a million years ahead of the next disaster, we should be ok.

  9. Phobos? Leather Goddesses? by ArielMT · · Score: 2, Funny

    Let me know if the lander encounters any Leather Goddesses of Phobos. (Great '80s game, btw.)

    --
    It must be Windows. It needs half a gig of RAM and a hardware-accelerated graphics card just to run Solitaire.
  10. I'll Bet... by eno2001 · · Score: 1

    ...they find a black monolith at the core of the moon. ;P (Yeah, I know... wrong planet and all, but "enigma" and "black monolith" go together so well.)

    --
    -"...bad old ideas look confusingly fresh when they are packaged as technology" - Jaron Lanier (Digital Maoism on Edge.o
    1. Re:I'll Bet... by Thuktun · · Score: 1

      ...they find a black monolith at the core of the moon

      s/at the core of the moon/buried in a crater on the moon's surface/

  11. Marsian Moonbase? by agent+dero · · Score: 4, Insightful

    Some think it the perfect place for a Mars moonbase.

    Let's not get ahead of ourselves here, besides the "shock and awe" of getting to the moon, why isn't there a drive for the practicality of a base on our own moon?

    I think it's time that more of our space exploration gets practical, and not HR fodder. "Hey we're technologically superior! We got to mars!"

    How about "Hey, we're technologically superior! We have colonized space and use those colonies as jumping points for marsian missions!"

    Too hopeful? ;)

    --
    Error 407 - No creative sig found
    1. Re:Marsian Moonbase? by bc90021 · · Score: 2, Interesting

      Read Zubrin's book. There's nothing on the moon. It costs more to land on the moon and then have to get off again, because even though there is less gravity, you still need to break to get to the moon, and then more propellant to get back off. Once you're off Earth, there's no sense in re-encountering gravity when you can go straight to Mars without having to land and take off again.

      Seriously, for everyone who thinks this, go read the book, and you'll learn to stop parroting the "let's go to the moon first" bit, just like I did. ;)

  12. They forgot the New Scientist story link by Anonymous Coward · · Score: 2, Informative

    The story in New Scientist is here

  13. Double Mission -- One for Each Moon by popo · · Score: 1


    They'll need a base on each moon to begin the UCP
    teleportation experiments... ... and open the gates to hell...

    --
    ------ The best brain training is now totally free : )
    1. Re:Double Mission -- One for Each Moon by Vinnie_333 · · Score: 2, Funny

      Don't worry. If things get out of hand, just type in IDKFA.

      --

      "We shall party like the Greeks of old! You know the ones I mean." - HedonismBot
    2. Re:Double Mission -- One for Each Moon by Anonymous Coward · · Score: 0

      Surely IDDQD would be more useful? IDBEHOLDS would be more fun though.

  14. Russia Rules! by __aaclcg7560 · · Score: 1

    The Russians are going to Mars? At least, they shouldn't have any problems converting measurements.

  15. Will they find by jimbobborg · · Score: 0, Redundant

    the Leather Goddesses there?

  16. Leather Goddesses by BHS_Turf · · Score: 0, Redundant

    The real reason for the trip to Phobos is to photograph the Leather Goddesses

  17. Comment removed by account_deleted · · Score: 4, Informative

    Comment removed based on user account deletion

  18. Mars moonbase on Phobos? by mpontes · · Score: 1

    Great, a Mars moonbase on Phobos is only the first step towards opening an extradimensional portal! Damned UAC scientists...

    --
    Bored? Browse Slashdot with a +6 modifier for Troll comme
  19. Hope/Plan by pete-classic · · Score: 5, Funny

    I think we have to hope for leather godesses, but plan for daemons.

    -Peter

    1. Re:Hope/Plan by N3Bruce · · Score: 1

      Perhaps we can reassign some of the Marines who get a little too rough with our "guests" at Gitmo to duty on Phobos. Lets hope they don't find that interdimensional gateway, but make sure they are well-armed with plasma rifles and a few BFG-9000s, and plenty of ammo.

  20. not a bad idea, but.... by rwven · · Score: 1

    If you're gonna make a mars base on a moon of mars, what's the point? Just make it on the surface... It's really not THAT much different to go to the surface than it is to go to the moon. Granted the deceleration needed is less, but then you have to worry about how to get from the moon to the planet... the extra fuel needed to decelerate onto the planet is proabably a lot less than making a hop on the moon first ;-)

    I do think we should go and look at the moon there though, that could be neat.

  21. Don't be jealous by Anonymous Coward · · Score: 0

    Some people write well.
    Others just write good.

    (bonus points to those who understood the double meaning)

    1. Re:Don't be jealous by Anonymous Coward · · Score: 0

      good

  22. I'm amazed... by Spy+der+Mann · · Score: 2, Funny

    That no one in here has made a DOOM reference yet.

    1. Re:I'm amazed... by ZephyrXero · · Score: 1

      Apparently you missed both of these...

      --
      "A truly wise man realizes he knows nothing."
    2. Re:I'm amazed... by ZephyrXero · · Score: 1

      damn....I knew I should have hit that preview button :P

      --
      "A truly wise man realizes he knows nothing."
    3. Re:I'm amazed... by Tongo · · Score: 1

      Apparently so did you.

  23. This project is DOOMed by Anonymous Coward · · Score: 0

    Base on Mars' moon? I've seen this before, somewhere... and something happened... I don't think it was very good. Ah well, as long as they don't mess with teleportation.

  24. Speaking for all Martians by RevengeOfPoopJuggler · · Score: 2, Funny

    I, for one, welcome our new pink overlords

  25. Bad Idea by pizen · · Score: 1

    Some think it the perfect place for a Mars moonbase."

    Don't they remember what happened the last time we put a base on Phobos?

    1. Re:Bad Idea by mpontes · · Score: 1

      Nah, everything will be all right, just as long they leave a BFG9000 in E1M1: Hangar.

      --
      Bored? Browse Slashdot with a +6 modifier for Troll comme
    2. Re:Bad Idea by BurntNickel · · Score: 1

      Don't you mean this use of Phobos?

      --
      And the knowledge that they fear is a weapon to be used against them...
  26. Re:Don't hold your breath by orion41us · · Score: 1

    You know Russians are a very shoe-string type people, a story goes that Americans spent 2 years and a Million dollors to invent a pen that would work in micro-gravity... Russians used pencils. I would not be surprised if Russians make it there first, anyone smell another space race on the way?

  27. Mystery by ndansmith · · Score: 4, Funny
    Most scientists assume the heavily cratered moons are captured asteroids, Christensen told New Scientist. But it is actually quite hard for a planet to capture an object into its orbit - most things just skim by. 'So how it got there is a bit of an enigma.

    Maybe God put it there.

    1. Re:Mystery by Anonymous Coward · · Score: 1, Funny

      Or, for a Goonies quote:
      "God put that rock there for a reason."

    2. Re:Mystery by Widowwolf · · Score: 0

      there is no DOG!

      --
      ~~"Of course, that's just my opinion. I could be wrong." ~~Dennis Miller
    3. Re:Mystery by Dirtside · · Score: 1

      No, it is clearly the work of the Flying Spaghetti Monster.

      --
      "Destroy science and religion. Science would re-emerge exactly the same; but not religion." - Penn Jillette, paraphrased
  28. Re:Phobos? Leather Goddesses? by Tackhead · · Score: 1
    > Let me know if the lander encounters any Leather Goddesses of Phobos. (Great '80s game, btw.)

    > SLASHDOT

    Slashdotter descriptions. (Lewd mode wasn't enough for you, was it, you perv?)

    > KISS MY KNEECAPS

    She blushes a bit, and admonishes you with her finger. "Nyet, comrade. In Soviet Russia, kneecaps kiss you!"

  29. How are they going to pay for it by jockm · · Score: 4, Interesting

    I am all for increasing space exploration, and by all means the more people (or countries) at the party the better, but has there been any coverage of how they plan to pay for this effort?

    They had serious problems meeting their obligations for the ISS, they operated MIR on a shoestring, the economy is improving but do they have the cash for it?

    I hope they do. I hope the US shakes more money loose from the trees for our own programs as well.

    --

    What do you know I wrote a novel
    1. Re:How are they going to pay for it by hackstraw · · Score: 1

      I am all for increasing space exploration, and by all means the more people (or countries) at the party the better, but has there been any coverage of how they plan to pay for this effort?

      They had serious problems meeting their obligations for the ISS, they operated MIR on a shoestring, the economy is improving but do they have the cash for it?

      I hope they do. I hope the US shakes more money loose from the trees for our own programs as well.


      All you have to do is convince the people that terrorists are no longer a problem, its the comm^H^H^H^HRussians and we can't have the Russians beat us at something right?

      Worked the other way around in the 60's. But then again, we didn't have terrorists then. And besides, the American people would never fall for the same trick twice.

  30. Any Soviet Russia posters from now on are... by CardiganKiller · · Score: 0, Redundant

    ...To be modded redundant.

    $location={"Soviet Russia", "Mars", "Earth", "The known universe and possibily all of its parallels"}
    $object={"satellite", "Mars", "gravity", "spaceship", "CowboyNeal", "our new overlords"}
    $verb={"lands", "launches", "explores", "infests", "destroys"}

    print "In $location, $object $verb YOU!\n";

    ...Desist!

    1. Re:Any Soviet Russia posters from now on are... by agent+dero · · Score: 0, Redundant

      In Soviet Russia Cowboy Neal mods you redundant.

      Sometimes you just can't win ;)

      --
      Error 407 - No creative sig found
    2. Re:Any Soviet Russia posters from now on are... by CardiganKiller · · Score: 1

      Live by the sword, get modded redundant by the sword. It's a cruel way of life.

  31. Soooo...does that make it a... by bornyesterday · · Score: 1
    Some think it the perfect place for a Mars moonbase

    That would make it a Phobosbase? Or a Phobase? Just name it what it is. If we follow that pattern we'll end up with things like the Beta Promixa Centauri Two Seventh Moonbase.

    1. Re:Soooo...does that make it a... by Anonymous Coward · · Score: 0

      Phobos is a moon, that's what we call things of that nature circling planets. It also happens to be the name of ours.

    2. Re:Soooo...does that make it a... by bornyesterday · · Score: 1

      Actually, our moon's name is Luna. And our sun's name is Sol. We're really original.

  32. Re:Don't hold your breath by aCapitalist · · Score: 1

    And the story was wrong. It was a gimmick by a pen company

  33. Yet more political rhetoric. by CyricZ · · Score: 1, Interesting

    This is just another example of the political rhetoric we hear on a daily basis. They say they're going to go to Mars, but it won't happen. Just like Bush said the US would go to the moon and Mars. It won't happen. This is just a case of politicians being politicians, and spewing out promises that will never be acted upon. Give this a few hours and we'll have forgotten about it.

    --
    Cyric Zndovzny at your service.
    1. Re:Yet more political rhetoric. by aCapitalist · · Score: 1

      The same as the story where France and Japan are going to spend $1.8 million a year (snicker) for 3 years on "research" into a new supersonic passenger jet.

      Yep, everybody has grandiose plans.

      Maybe slashdork can report something when it actually happens.

    2. Re:Yet more political rhetoric. by arootbeer · · Score: 1

      doubtful...they like stories like this, because if they only reported on these subjects when things actually happen, they wouldn't have any stories.

      Maybe they should make a mars.slashdot.org?

  34. Obligatory Doom Reference by Anonymous Coward · · Score: 0

    If your going to establish bases on both moons, whatever you do, dont let them conduct teleportation experiments

  35. Dusty surface by RobertB-DC · · Score: 4, Informative

    Putting a lander on Phobos should be interesting, since the moonlet is covered by a meter-thick layer of dust. When I imagine a craft making a landing, I picture throwing a rock into a bowl of flour. On the plus side, maybe we'll make the first sizable, intentional man-made crater outside the Earth.

    I guess Phobos is better then Deimos... the latter is thought to have a layer of dust several hundred feet thick (or should that be "several dozen meters thick"?

    --
    Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
    1. Re:Dusty surface by LiquidCoooled · · Score: 1

      Isn't that award going to go to Deep Impact.
      A probe designed specifically for this purpose (unlike Beagle 2)

      --
      liqbase :: faster than paper
    2. Re:Dusty surface by arootbeer · · Score: 1

      Yeah...and with NASA's recent dusty landing record, we should probably be a bit worried about that

    3. Re:Dusty surface by Anonymous Coward · · Score: 0

      or should that be "several dozen meters thick"?

      Several tens of meters thick.

      Even better would be an approximate actual depth.

  36. Mars base by Espectr0 · · Score: 1

    Don't forget the duct tape. Seems that the russian space agency are doom players.

  37. Actually... by gkwok · · Score: 5, Funny

    In Soviet Russia, all of us are belong to base.

  38. Yeah, maybe they should try Phobos by aCapitalist · · Score: 1

    We know the luck they've had with their Mars probes.

  39. Space 1999 by krgallagher · · Score: 1
    "why isn't there a drive for the practicality of a base on our own moon? "

    I think it is because of all the problems we had with moon base alpha back in 1999.

    --

    Insert Generic Sig Here:

  40. Link properly! by CrazyWingman · · Score: 2, Funny

    Dammit, why doesn't anyone have a proper sense of humor anymore? Clearly the link should have looked like this: Mars moonbase.

  41. Maybe I read that wrong by RealProgrammer · · Score: 1
    ... much easier than the surface as far less deceleration is needed ...

    I would hope that they would still decelerate all the way before landing. Messy otherwise. Or maybe Phobos has enough velocity relative to Mars that you just sort of slow down a little and hop on?

    (Presumably, the intended meaning was that far less fuel is required for deceleration.)

    --
    sigs, as if you care.
  42. Small moons harder to land on by JJ · · Score: 4, Insightful

    The two moons of Mars are not very big and although their gravitation is minimal, they don't present very big targets either. In order to land on one, you have to match the speed almost perfectly, then slightly chnage yours and then just as you get there match it again, hopefully you can then latch on.

    While that may not sound like much, for a probe with no help from Earth (Mars is on average 8 light, hence radio minutes away) this is a difficult task.

    --
    So long and thanks for all the fish . . . !!!
    1. Re:Small moons harder to land on by digidave · · Score: 1

      Phobos is nearly 60,000 Kms in diameter. It's not like they're landing on a pea. They have hit Mars with much greater accuracy than that.

      --
      The global economy is a great thing until you feel it locally.
    2. Re:Small moons harder to land on by JJ · · Score: 1

      I think you read that wrong. According to the referenced website (under 'tiny Martian moon') the diameter is 22.2 kms. Even Mar's diameter is only 6,800 kms. In space terms, they are landing on a pea.

      --
      So long and thanks for all the fish . . . !!!
    3. Re:Small moons harder to land on by Anonymous Coward · · Score: 0

      Neither 60,000 kelvin*meter*seconds nor 22.2 kilometer*seconds have the proper units to possibly represent a diameter.

  43. Is there an engineer in the house by srmalloy · · Score: 2, Insightful
    Turns out it's a cool place to land - much easier than the surface as far less deceleration is needed, it should have plenty of Mars rocks spattered on the surface and it's just 9000km above the surface.

    "Less deceleration" only in that Phobos' gravity well doesn't add much velocity to the probe's velocity as it approaches the moon; however, being airless, it will be impossible to use any aerobraking (unless the mission profile uses a 'skip' into Mars' atmosphere to bleed off excess velocity); having to carry fuel to perform all the deceleration by thrust makes the probe heavier, which increases the amount of fuel required (lather, rinse, and repeat).

    1. Re:Is there an engineer in the house by jericho4.0 · · Score: 1

      Phobos is in a low and fast orbit, that is probably relatively easy for a spacecraft to enter.

      --
      "A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
    2. Re:Is there an engineer in the house by Anonymous Coward · · Score: 0
      it will be impossible to use any aerobraking
      But they can use dustobraking.

      Phil
    3. Re:Is there an engineer in the house by trongey · · Score: 1

      >>having to carry fuel to perform all the deceleration by thrust makes the probe heavier, which increases the amount of fuel required (lather, rinse, and repeat).

      The Deep Space 1 probe did a fine job of landing on a small asteroid. It used an ion thruster and carried almost no fuel compared to most spacecraft.

      --
      You never really know how close to the edge you can go until you fall off.
    4. Re:Is there an engineer in the house by Anonymous Coward · · Score: 0

      The Deep Space 1 probe did a fine job of landing on a small asteroid. It used an ion thruster and carried almost no fuel compared to most spacecraft.

      I think you mean the NEAR (Near Earth Asteroid Rendezvous) probe that "landed" on Eros on Valentine's Day in 2001.

  44. Re:Don't hold your breath by pHatidic · · Score: 1

    Actually it is true. However what they don't tell you was that the graphite from the pencils got into the lungs of the cosmonauts and killed them.

  45. Re:Don't hold your breath by saider · · Score: 1

    Pencils are bad for space. Graphite dust floating around and in electronics is a catastrophe waiting to happen.

    --


    Remember, You are unique...just like everyone else.
  46. Right idea, wrong target by amightywind · · Score: 2, Insightful

    Sending a mission to Phobos is like bypassing New York City in order to visit Newark. Phobos is of vanishingly small scientific significance compared to Mars. For some inexplicable reason the Russians are fixated on it. No harm I guess. Wouldn't it make more sense to visit an asteroid of a type not yet encountered (metallic).

    --
    an ill wind that blows no good
    1. Re:Right idea, wrong target by Vaevictis666 · · Score: 1

      They want to drop on Phobos because it's close enough to Mars to get good pictures and such I guess.

    2. Re:Right idea, wrong target by user32.ExitWindowsEx · · Score: 1

      I thought they wanted to do teleportation experiments.

      --
      "Evil will always triumph because good is dumb." -- Dark Helmet
    3. Re:Right idea, wrong target by Junior+J.+Junior+III · · Score: 2, Funny

      Perhaps the Russians, having lost all of their native brides due to their effective mail order industry, have decided to investigate the rumors of leather goddesses.

      --
      You see? You see? Your stupid minds! Stupid! Stupid!
    4. Re:Right idea, wrong target by NoImNotNineVolt · · Score: 1

      Not that bad really. Having spent most of my life in Jersey I've been in the city my fair share of times, and I go to school in Newark. The one has bigger buildings, but they're both equally shitty.

      --
      Chuuch. Preach. Tabernacle.
  47. Re:Don't hold your breath by Tongo · · Score: 1

    Will this myth ever die???

    Here is the truth.

  48. Re:Dear T/\/\/\/\ by MyLongNickName · · Score: 2, Insightful

    Mark him a foe if you don't like him. Then mod foes down by ten or so. Otherwise, get over it. Its a free message board.

    Thanks.

    --
    See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
  49. Mars rocks on the surface by apankrat · · Score: 2, Interesting

    .. it should have plenty of Mars rocks spattered on the surface

    Funny that they mentioned it...

    Can anyone explain how can 'a plenty of rocks' leave Mars and land on its moon ?

    Bonus question is to explain the appearance of 'martian meteorits' on Earth.

    Somehow I have troubles imagining the level of volcanic activity required to catapult rocks to the neighbouring planets ...

    --
    3.243F6A8885A308D313
    1. Re:Mars rocks on the surface by drxray · · Score: 2, Informative

      The rocks are thrown into space by the impact of meteors. This is how they can hit Phobos or Earth.

      If you've ever looked at the Moon through a telescope (recommended, it's beautiful!), you'll see huge lines of material converging on the craters, this is called "ejecta" and it's the debris thrown out from impacts. Some of the lines cross decent fractions of the Moon's surface, so it's pretty easy to imagine that some of the rock made it all the way out of orbit, and that the same process can operate almost as easily on Mars.

      --
      Slashdot - Mutual Assured Discussion
    2. Re:Mars rocks on the surface by dlt074 · · Score: 0

      long story short. when huge rocks hit mars, mars rocks are thrown into space. some land on its moons some escape the gravity of mars only to reach earth's gravity well.

    3. Re:Mars rocks on the surface by ColaMan · · Score: 1

      Volcanism just ain't gonna cut it.
      It goes like this:

      Planet
      +
      good-sized asteriod impacting at speed
      =
      lots of ejecta with enough velocity to escape mars gravity and land on small moons and other planets.

      Of course, most of the good-sized asteroids already smacked into planets eons ago, so the odds of it happening in your lifetime are pretty slim.

      --

      You are in a twisty maze of processor lines, all alike.
      There is a lot of hype here.
  50. Better hurry up... by amstrad · · Score: 4, Funny

    Phobos' orbit is decaying and will likely crash into Mars or split into a ring within 50 million years

    1. Re:Better hurry up... by skelly33 · · Score: 1

      With the Russians' recent track record for space exploration, this could easily be sped along to 50 years by the end of the first mission. :^)

  51. Nice moderation job by Anonymous Coward · · Score: 0

    very subtle :)

  52. 9000 km ??? by Anonymous Coward · · Score: 0

    How much is that in the RMS (the Redneck Measurement System) ?

  53. Meet Sexy Greek singles by gelfling · · Score: 1

    At least that's what the text skimming adbot on the rightside of the page for Deimos, Phobos sister moon has. For Phobos you have to be satisfied with ads for relativity and photons and such.

  54. Good luck! by alewar · · Score: 1

    I wish them good luck, because with their mars-probe's success ratio they'll need it!!

  55. What's the downside? by crovira · · Score: 1

    They saved on the pen and on retirement benefits for the Cosmonauts.

    Think like an accountant, man.

    In terms of payload to be delivered, if this could get recognized as a contractual obligation, it would be cheapest to build the space elevator.

    It might be cheapest to capture an asteriod and park it in orbit (a few billion dollars, maybe a month's worth of war money at our current rate,) and use it to 'grow' some nanotubes down to the surface of the planet.

    Yeah, I can see it...

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  56. And neither can the USA by WindBourne · · Score: 2, Interesting

    at this moment.

    Worse, with a growing deficit, we may not be able to afford it. Right now, China and the Middle east are proping up the deficit . But both groups are deciding that they would rather start buying our companies and skip supporting the deficit. If that happens, then the only way to attract money to finance it is to increase bond rates, which will increase prime. As it is, with prime going up, the economy is slowing again.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  57. Re:Dear T/\/\/\/\ by spun · · Score: 1, Offtopic

    Awwww, is da poor baby jewous? Does it wants its kawma, too? I don't think TMM gives a rat's arse about your whiney little complaint. Your seething green envy is patently obvious to anyone. I'm not a great big fan of TMM, but he is amusing and occasionally has something informative or insightful to say. Which may be why he's got about 100 times as many fans as you do. And why not? He's not a juvenile little troll. Whether it works for you or not, he at least tries to contribute something of value to this site, which is far more than you do.

    I find my thoughts drifting to images of you, red faced and out of breath as you furiously stroke your tiny member while picturing your mom doing it doggy style with a trained seal, and frankly it makes me sick. Leave the poor seals out of your deranged fantasies.

    Let me know how the whole penis pump/herbal viagra thing works out for you.

    1992 called, they want their dumb catchphrase back.

    --
    - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
  58. BIG meteorite impacts kick up a lot of debris by crovira · · Score: 1

    Think of the last good eruption on earth. How high was the dust cloud.

    Why wait to capture an asteroid? Just move Deimos or Phobos over to an earth orbit (I'm still pratting on about my previous post about building a space elevator. It needs an anchor point in orbit. One of those would do it. Then we move the equipment do Mars and repeat the process there. An earth space elevator would be great if it had a mars elevator at the other end.)

    And think of the penal colony potential.)

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  59. Aerobraking by p3d0 · · Score: 1
    You don't need much deceleration to get into orbit around bodies with atmospheres. You just do a small burn to turn your orbit from a hyperbola into an ellipse with a periapsis in the atmosphere and an apoapsis well within the body's hill sphere. Atmospheric drag gives you all the deceleration you need.

    From that point of view, I'd expect Mars would be easier to reach than Phobos, though clearly the latter has the upper hand when it comes to the return trip.

    --
    Patrick Doyle
    I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
  60. I am reminded of the moon back in the 60's by WindBourne · · Score: 2, Insightful

    Back then, we had as much knowledge of earth's moon, as we do of these moons. And all the naysayers were positive that we would be landing on dust several hundred feet thick and the landers would just sink in. hence the reason for the big feet on them (snow shoes).

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:I am reminded of the moon back in the 60's by Anonymous Coward · · Score: 1, Funny

      And all the naysayers were positive that we would be landing on dust several hundred feet thick and the landers would just sink in.

      They would have sunk in, had they landed on the REAL moon. Duh.

  61. Re:Don't hold your breath by vjmurphy · · Score: 1

    Wow, you could replace "Russian" with "American" in the parent and it would still be true.

    --
    Vincent J. Murphy
    Spandex Justice
  62. Doomed by Anonymous Coward · · Score: 0

    This is doomed to failure.

    First, they are communists and G-d hates them.

    Second, it is not our place to challenge the Heavens. He allowed us to reach the moon to give us a taste of the Heavens. Through Apollo 13 He showed us that He would no longer allow us to enter His space. He is testing us. Should we try to intrude on Him again nothing but ill will fall upon us. Tread carefully Russians, I don't want to die because a bunch of commies are challenging G-d.

  63. Better TV reception. by crovira · · Score: 1

    They'll be able to get ALL the channels.

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  64. escape velocity by crafteh · · Score: 1

    With a 10.3 m/s escape velocity, i'd be scared to have a moon base there...

  65. Uh by Anonymous Coward · · Score: 0

    Didn't Arkady already build the train track around Phobos? You know, to minimize the effects of zero-g.

  66. In post-Solviet Russia... by Anonymous Coward · · Score: 0

    Oh wait nevermind.

  67. OT: I miss that cute pink guy by davidwr · · Score: 1

    What cell phone company was that again? We lost the cute pink alien in one of the cell-phone mergers.

    --
    Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
  68. Re:Dear T/\/\/\/\ by Anonymous Coward · · Score: 0

    an early post filled with regurgitated article with something that deserves a +5 Insightful

    You're just jealous because you can never get "frist psot" anymore. I for one welcome our new Insightful overlord.

    Cheer up, 1992_called! You'll be dead soon!

    ^_^

    --
    Trolling the trolls since um...June 2005.

  69. No Scientist Left Behind by Anonymous Coward · · Score: 1, Funny

    Sheesh, those Russians must have a terrible education system. Isn't it obvious that the Martian moons are there because God put them there in His Ultimate Wisdom?

  70. moonbase by Anonymous Coward · · Score: 0

    Some think it the perfect place for a Mars moonbase.

    Will it have a "laser"? There's no sense having a moonbase if it doesn't have a "laser".

  71. I wonder how... by KingofSpades · · Score: 1

    a rover behaves in near-zero gravity. And how can it be tested it on earth.
    According to Wikipedia, gravity on Phobos is slightly below g/1000. In other words a 400 kg rover will feel like it is 400 grams over there. That's almost nothing.

  72. Asteroids? Eh? by StarsAreAlsoFire · · Score: 1

    I've heard that theory before, but I was always under the impression that the 'accepted version' inolved that pesky asteroid strike which created Olympos Mons and the MASSIVE crater on the opposite side of the planet.

    I suppose small chunks of the same rock could have come in moments later and had some nice happy aerobraking..

    It is a fun problem: once you touch air, you are done without thrusters. There are no mechanisims which raise periapsis (generic term for perigee) fast enough to counter any significant resistence. But when a rock leaves from the surface of the planet, by definition if it is in 'orbit' then the orbital periapsis is going to be at the altitude from which it left -- e.g. THE GROUND. Hence there must be some complex interactions which occure at high altitude in order to but a rock into a 'real' orbit. However, I am certain that when you blast a trillion trillion tonnes of rock from the face of a planetary body, a few of the pieces will off-gas enough, explode, or just bounce of other pieces enough to obtain a longer-term stable orbit (days weeks, who knows? Maybe even eons). OR you can blast a bunch of rock into a trailing orbit -- it reaches escape velocity from Mars, and continues to orbit in the same heliocentric orbit, trailing or leading Mars by a bit, and slightly more elliptical. Their paths would cross once in a while for sure -- which could lead to a later recapture: see the part about super-nice velocity matching below.

    The allowable mechanisms for an asteriod to be captured are much lower --- if it hits the atmosphere, that becomes its lowest point. Period. So it will continue to hit the atmosphere time and time again.

    If asteriod is going so fast that the atmosphere heats it up enough to do anything, chances are it is going way to fast to be captured. If said asteriod is going so slow that it can be captured without aero braking --- well, lets just say that ANYTHING is possible in these timeframes, but I would never play a lottery with odds like that... unless we are talking about rocks that left Mars in the past and are in the same orbit as Mars is with respect to the sun.

    Phobos is orbiting at about 2km/sec around Mars, Deimos at about 1.36 -- in just about the most perfectly circular orbits you ever could imagine (e = 0.001 and 0.00 respectively). Which means that these suckers were moving at almost exactly whatever speed the are going now when they were captured.

  73. Opening the gates of hell by halber_mensch · · Score: 1

    Next on slashdot, how the Russians will open the gates of hell.

    --
    perl -e "eval pack(q{H*},join q{},qw{70 72696e74207061636b28717b482a7d2c717b343 637323635363534323533343430617d293b})"
  74. Question by starrsoft · · Score: 1
    From TFA: "A mission devoted to the moons could explain how the satellites are held together - whether they are piles of rubble loosely held together by gravity or solid chunks. Most scientists assume the heavily cratered moons are captured asteroids, Christensen told New Scientist. But it is actually quite hard for a planet to capture an object into its orbit - most things just skim by. 'So how it got there is a bit of an enigma,' Christensen says."

    Question: Where did our moon come from? What are the non-captured-asteroid moons made of and what are their origins?

    --
    Read my blog: HansMast.com
  75. Re:Sig by Anonymous Coward · · Score: 0

    You, my friend, have never eaten cat. They taste more like gamy mutton, not pleasant at all.

  76. I can't believe.... by niteice · · Score: 1

    that with all these damn nerds around, nobody has made a decent reference to Doom. I'll sum them up:

    - Whatever you do, don't let them build teleporters.
    - Make sure to leave plenty of high-power weapons and ammo for those lying in random places.
    - Give the blueprints to John Romero (yes I know he didn't do all of E1 but he was responsible for bringing the levels into their final form).
    - If you branch out to Deimos, make sure to save the plasma gun until we get there.
    - Put in plenty of speakers so we can listen to those MIDIs all the time.
    - Make sure to build plenty of toxic waste dumps that get converted into labs and such.
    - Do absolutely nothing to seal the portals from any sort of invasion.

    --
    ROMANES EUNT DOMUS
  77. Re:Russians are already packing heat. by vertinox · · Score: 2, Interesting

    I wish I could find a more official article, but this is the first one I found on google:

    "In 1965, two cosmonauts overshot their touchdown site by 1,200 miles and found themselves deep in a forest with hungry wolves. That's when Russian space officials decided to pack a sawed-off shotgun aboard every spacecraft. It took Russian search crews more than two hours to locate the spacecraft and another two hours for helicopters to get support crews to the landing site."

    From http://www.usa4id.com/ciwc/SawedOff.htm

    As it is, they'd be more prepared than any Americans in space if they happened to open the gates of hell ;)

    --
    "I am the king of the Romans, and am superior to rules of grammar!"
    -Sigismund, Holy Roman Emperor (1368-1437)
  78. I predict... by Anonymous Coward · · Score: 0

    I predict they'll try using more surplus ICBM's launched from subs, and get a couple feet farther than Cosmos 1.

    Nemo

  79. I get 4500 m/s by p3d0 · · Score: 1

    I get about 4500 m/s. That's 3600 to escape LEO and 900 to get captured by Mars. Am I wrong?

    --
    Patrick Doyle
    I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
    1. Re:I get 4500 m/s by AKAImBatman · · Score: 1

      No, looks like you're right. (Or closer to right, anyway.) I was using this chart, but somehow ended up with 3.9 km/s. According to the chart, the correct Delta-V is 2.5+0.7+0.6+0.9 = 4.7 km/s, That being said, there are "cheaper" ways of getting to Mars, but not such that the trip would be suitable for humans.

      Not that it matters too much for this discussion. With a 25% gas tank, the maximum Delta-V attainable at 11,000 Isp is 24 km/s. (24,000 m/s) For a 500 tonne craft, one gas tank would look approximately something like this (at 4700 m/s per trip):

      Trip 1: 500tn -> 478tn
      Trip 2: 478tn -> 457tn
      Trip 3: 457tn -> 437tn
      Trip 4: 437tn -> 418tn
      Trip 5: 418tn -> 400tn
      EMPTY

      That's 5 full trips, or two and a half round trips on one fuel tank! And that's considering that I gave each trip about 100 m/s more delta-V than necessary due to rounding! Engines like these would forever change the face of space travel if they went into common usage. :-)

    2. Re:I get 4500 m/s by p3d0 · · Score: 1

      Actually, by that chart, they use aerobraking to get captured by Mars, so by their numbers, it's 3800 m/s. So you can get six trips!

      --
      Patrick Doyle
      I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
  80. We CAN Get To Mars Quickly by DynaSoar · · Score: 1

    All we need to do is discover oil there.

    'Funny' mods accepted at only 1/2 regular rate.
    I'm only half kidding.

    --
    "I may be synthetic, but I'm not stupid." -- Bishop 341-B
  81. This Article's Introductory Sentence is Irksome by wintermute1974 · · Score: 1

    Apparently Russia has revived a previous plan to send a spacecraft to Phobos, a tiny Martian moon.

    A tiny Martian moon? What, as opposed to the dozens of hyper-massive moons that orbit Mars? Seriously, neither Deimos nor Phobos could be called a large moon by any stretch of the imagination.

    What would have been wrong with simply saying "Russia has revived a previous plan to send a spacecraft to the Martian moon Phobos"?

    Those who do not know their astronomy can always Google or Wikipedia their way toward an understanding of the inner solar system. (Yes, I realize that I just verbed two nouns in the last sentence. Lighten up.)

    1. Re:This Article's Introductory Sentence is Irksome by mbius · · Score: 1

      I just verbed two nouns

      Make that three.

      --
      you can have my violent video games when you pry them from my cold, dead hands.
      Prime UID Club
  82. Oh God, not again. by ChickenFan · · Score: 1

    Russians planning two more?

    An awful movie... except where Tim Robbins dies... that was the high point.

    M'n'Ms anyone?

  83. International Space Agency: A Bad Idea by wintermute1974 · · Score: 4, Informative
    I completely disagree with you. Nationalism is the very reason that humanity managed to escape from gravity during the 20th century.

    Take for example, the race to the moon. Did the US go to the moon because the American population wanted to, just for the fun of it? No. The US and the USSR were locked in a cold war, each side vying for superiority on the global stage.

    Europe was seen as the battlefield for the Third World War, which seemed like it might begin at any moment during the 1950s and 1960s.

    If you were part of the leadership of a European nation during those years, you really would like to be aligned with the victor. Since the war would be fought with rockets, you probably watched the space race with great interest: After all, without an actual war, rockets into space provided a good proxy for actual military prowess.

    In this game, the US was doing quite badly:
    • The first artificial satellite in orbit around the Earth? The USSR did that first, in 1957.
    • Who sent the first living animal (a dog) into space? The USSR, of course, also in 1957.
    • The first man in space? The USSR did that first too, in 1961.
    • How about the first woman in space? The USSR beat the US there too, sending Valentina Vladimirovna Tereshkova skywards.
    • Which nation launched a man to orbit who then donned a spacesuit and drifted in the emptiness of space by himself? Yet again, the USSR did it first, in 1965.
    Time after time after time, the USSR was handing the US its ass on a plate.

    In the international community, the USSR was winning the propaganda battle against the US.

    Without the presence of the USSR, the US would have never sent people to the moon. We would have never seen the earth rise from behind the moon. We would have never seen people bouncing around the surface of the moon, kicking up dust.

    So, parent poster, please do not say that nationalism is bad for space. Without it, we would have never escaped the gravity well.
    1. Re:International Space Agency: A Bad Idea by Anonymous Coward · · Score: 0
      How about the first woman in space? The USSR beat the US there too, sending Valentina Vladimirovna Tereshkova skywards.

      You'd think they'd save a whole lot of weight by packing pre-cooked food and 'fleshlights' instead.

    2. Re:International Space Agency: A Bad Idea by ChefBork · · Score: 1

      The best proof of this is the fact that the USA hasn't gone back to the moon in almost 40 years.

      In fact, in was recently stated that we don't currently have the technology to do it again and would have to reinvent a lot of it. It'd be better because of advances in space technology, etc., but it would still need to be redone.

      All this can be easily explained -- the USSR didn't compete with the USA in placing bases on the moon, so the USA turned back inwards and ignored one its greatest triumphs.

      "In peace for all mankind".

  84. Re:Dear T/\/\/\/\ by Anonymous Coward · · Score: 0

    Okay, who do you prefer? garcia or TMM?

  85. double mars shot by russians by prplppleatr · · Score: 1

    arn't they allready having trouble paying for there share of the space station

  86. OK, first, disclosure: by bhsx · · Score: 1

    I'm am in absolutely no way a "scientist" of any kind; but how about this theory:
    When the "big bang" happened, the universe probably looked very dusty. There was all sorts of matter, dispersed indescriminately among void. When the particles of matter started attracting each other via gravity (we should be praying to 'G' without the 'od' as it is [most likely] the real creator of the univers), the attractant energy between them whirling around and finding each other probably created positive and negative feeds that eventually disipated after the "great settlement"(copywrite and trademark bhsx as of now). This would cause more energy and friction causing acceleration in the particles till they smash together, and instantaniously create new gravity fields, governing their new environments.
    OK, that was quite a rambling, and probably built on completely false assumptions of physics, of which I'm a layman (although I do know how to fall correctly); but can anyone even understand what I'm trying to get at?

    P.S. It's Friday night here... I'm a little toasted! ;)
    Keep in mind, the "Preview" button is taunting me right now, beging for my approval, but I'm ignoring him. He's not my friend.
    Moderators: +1 Drunk

    --
    put the what in the where?
  87. Why this mission will be a simple success. by FauxReal · · Score: 1

    Because in Soviet Russia, Mars comes to you!

  88. Zubrin is wrong by khallow · · Score: 1
    The Moon can feed construction in Earth orbit. It has significant mineral and energy resources that complement Earth's (eg, light elements, titanium, and better solar energy than Earth or Mars, etc). Earth workers can teleoperate Lunar equipment with a mere two second round trip delay while Mars has several minutes of round trip delay. Lunar industry can rapidly adapt to short term needs on Earth or in Earth orbit while anything from Mars will take weeks or months to ship.

    The Moon is right next to the most valuable real estate in the Solar System and perhaps in the galaxy. OTOH, Mars will have minimal interaction with Earth's economy for a long time to come.

    In summary, there is a lot more on the Moon than Mars in the short. Even in the long term, I see problems with Mars being at the bottom of a deeper gravity well than the Moon or many other bodies in the Solar System.

  89. Errr... you forgot the TTL.... by AKosygin · · Score: 1

    With a TTL of 52, your request would time out before the reply actually came back. Unless it was a TTL of 52 days or some larger increment.

    1. Re:Errr... you forgot the TTL.... by Verteiron · · Score: 1

      TTL doesn't represent how long the request takes to time out. TTL represents the number of hops the ping will make before it "gives up".

      --
      End of lesson. You may press the button.
  90. They're GOING to be great. by zippthorne · · Score: 1

    I'd like to point out that these haven't been tested in any long term basis yet. By long term, I mean longer than a few miliseconds. The 30 MW tests are conducted using a huge bank of capacitors which take hours to charge. the problem is in maintaining hard vacuum at the thrust levels these things are supposed to put out. They're suppposed to bridge the gap a bit between the high Isp/nearly insignificant thrust of ion propulsion and the abyssmal Isp/really high thrust of traditional chemical rockets.

    The problem mentioned on the Wiki page is inaccurate... some background: MHD's basically work the same way as a rail gun, but instead of slugs, quasineutral conducting plasma* is used. and instead of rails, concentric annode and cathode are used. The magnetic field is generated by the current through the cathode AND the annode and is necessary for operation of the thruster. The other element is the current through the plasma, set in motion by the electric field generated between the cathode and annode.

    The problem is twofold. For efficiency, you must generate a uniform current sheet. This involves some complicated finite elements modeling and is not afaik perfected as of yet. In addition to being inefficient, concentrations in current will wreak havoc on the surface of the cathode, further compounding the problem. In addition to this, even ideal cathodes will ablate due to the high temperatures and currents. This ablation will not be uniform, which brings us back to the first problem. Wear of the cathode is the most significant engineering problem before these things can be used in space, but they hold the most promise so far for an interplanetary drive.

    In the meantime, look up Hall thruster, (which trap a "sea of electrons" instead of a physical cathode-i think) and Pulse plasma thrusters (a pico-thruster for really fine adjustment - and some so simple you could build one at home) both of which have actually flown.

    Unfortunately, this is not a earth-to-orbit technology. Like ion drive, this tech requires high voltages (which simply will not be achieved in an atmosphere) and still does not have the raw thrust available in a chemical or nuclear rocket.

    *Yes i know that was redundant, but it's so fun to say.

    --
    Can you be Even More Awesome?!
  91. 11.7 Gigawatts!?!@ by Anonymous Coward · · Score: 0

    11.7 Gigawatts? 11.7 Gigawatts? Great Scott!

  92. Fye on thee! by mbius · · Score: 2, Insightful

    As a proof of concept, do we care? It's like visiting Newark when nobody's ever crossed the Atlantic. Sure it's not NYC, but if the harbor's that much harder to navigate, maybe we should concentrate on the big puddle, and worry about the little one with jagged rocks later.

    Don't get me wrong, I bet Ferdinand and Isabella were pissed back in the day, but do we still expect a maiden voyage to come home laden with gold and spices?

    --
    you can have my violent video games when you pry them from my cold, dead hands.
    Prime UID Club