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Solar Sail to be Launched This Year

mad_goldfish writes: "Spaceflight Now is reporting that the Russians are preparing a Solar Sail for launch sometime after September aboard a Cosmos 1 rocket. Apparently most of the components have now been tested and they are getting ready to integrate all the flight components. Just the camera, S-band radio and main computer are yet to be completed."

161 comments

  1. cool by the_2nd_coming · · Score: 3, Funny

    so can we sail from here to Cardasia using one of those Sails? I mean the Bejorins did it.

    --



    I am the Alpha and the Omega-3
    1. Re:cool by Cappy+Red · · Score: 1

      Yeah... but only if you take the left turn at the subspace eddies... Cool deal, though... I want one.

      --
      This is my sig. It's prescription, I swear. I need it for reading things... on the other side of things
    2. Re:cool by Anonymous Coward · · Score: 0

      my god, it took all damn day for some one to think that was funny!!!

      what the hell do none of you people here watch Star Trek?

    3. Re:cool by Alexis+Morissette · · Score: 1

      Yes, except it's Cardassia, and Bajorans... Those were too glaring.

      --
      This is a special excite .sig
      This
    4. Re:cool by cheetham · · Score: 1

      Bajorans... sorry to be pedantic. :-)

      Wasn't it pushed along by some sort of eddies in space?

    5. Re:cool by Cryptosporidium · · Score: 1
      Wasn't it pushed along by some sort of eddies in space?

      Eddy's in space? Why didn't you tell me?

      (Apologies to the HHGTG fans out there.)

    6. Re:cool by Anonymous Coward · · Score: 0

      sorry I did not wip out my star trek Dictionary to check spelling...my god.

  2. More info by edwilli · · Score: 3, Informative

    This site is a great one for more info about solar sails. Exciting technology, I remember watching Cosmos and Segan talking about it.

  3. I wish them luck by jhines0042 · · Score: 5, Insightful

    You know what, I first heard of this and I thought, "Geez, America is getting behind in the Space Race", but you know what? I wish them the best of luck because ultimately the quest for Space Knowledge with benefit the whole planet.

    Good Luck!

    --
    42 - So long and thanks for all the fish.
    1. Re:I wish them luck by Anonymous Coward · · Score: 2, Informative

      Well, it's not so much "them." The Plenetary Society is the driving force behind the project, and they're a U.S.-based non-profit. The cool thing about this project is that it's non-governmental. The Russians are launching it bacuase they're the ones with the cheap launch vehicles.

    2. Re:I wish them luck by ch-chuck · · Score: 4, Insightful

      Well, the US started out behind, and IS losing Edge. Was thinking how to phrase it, but the Russians appear more willing to take risks (you know, in science, EXPERIMENT and risk failure but learn something anyway?) - w/ NASA's ever shrinking budget and risk aversion due to sensitivity to public criticism it sometimes seems like they can't try out anything (like space tourism) w/o knowing before hand that it's going to be successful. The typical US attitude to almost anything these days is how the lawyers are going to react and who is liable for damages; slowly turning into paralysis thru analysis, unable to accomplish anything.

      --
      try { do() || do_not(); } catch (JediException err) { yoda(err); }
    3. Re:I wish them luck by NumberGod · · Score: 1

      America has ALWAYS been behind in the space race, who had the first man in space, first animal in space?, first spacecraft to the moon, first satellite, the only thing the americans did first, was walk on the moon.

    4. Re:I wish them luck by 56ker · · Score: 2

      I remember a science fiction story about an annual race in which eight vessels raced from the earth to the moon using a solar sail - unfortunately the race had to be abandonded because of a solar flare (these were manned spacecraft) - but it was a great story! It's good to see science catching up with the sci-fi writers!

    5. Re:I wish them luck by Jhan · · Score: 1

      Yet it seems to be that these days the Russians have all the vision and none of the money. Meanwhile you guys, (the US) have all the money and no vision.

      How about spending a few hundred million dollars on building a orbital solar power station, that should repay its buildning costs 10 times over? Americans would laugh at such a proposal, meanwhile ther're a dozen detailed enginering examples in Russia.

      How about bringing back one single nickle/iron asteriod from the belt (or closer!). It will cost a few billion dollars, but the revenues are potentially 1000 times that. Again, the Russians will probably have everything worked out down to the type of bolts to use...

      --

      I choose to remain celibate, like my father and his father before him.

    6. Re:I wish them luck by crotherm · · Score: 2

      OK, what have the Russian's done lately other than this?

      The US has tested ion drives, beach balls on Mars, landed on asteroids and... uh, ok.. so maybe we don't have much more on the plate, but those are substantial achievements and risky.

      The real thing is to see what is being planned right now. I don't know... and I am too lazy to check.

      --
      "Those who make peaceful revolution impossible, make violent revolution inevitable" - JFK
    7. Re:I wish them luck by GileadGreene · · Score: 1
      First rendezvous & docking in space. First reusable (at least partly) launch vehicle. First successful probe to land on Mars. First (and only) nation to send spacecraft to the outer planets. First deep space use of electric propulsion. First (and probably only) nation to send a spacecraft to the Sun-Earth L1 libration point. First to land on an asteroid. That's just off the top of my head. I'm sure there are more...

      Oh yeah, looks like they'll get "first solar sail" too, since this project is backed by the Planetary Society, which is an American non-profit. They just happen to be buying their ride to orbit on a Russian launch vehicle.

    8. Re:I wish them luck by GileadGreene · · Score: 1
      Since this mission is backed by the Planetary Society (an American non-profit) I don't think that this counts as Russia "getting ahead". The connection with Russia is that the solar sail will be launched on a Russian launch vehicle. Could have gone on a US one, but the Russians are cheaper.

      The place where Russia is getting ahead is in the commercialization of space. The US does comm sats. The Russians do tourists, ads, and anything else to turn a buck. Which is great, becuase until space is really commercialized it'll be restricted to NASA's select few astronauts, and the rest of us schmucks won't have a chance.

    9. Re:I wish them luck by I.+M.+Bur · · Score: 1

      Arthur C. Clarke wrote this, but the name is beyond me... Great story, quite believable and Clarke even mentioned that he has asked some friend of his to check the physics in it so that it is even accurate...

  4. Great News!! by JJ · · Score: 2

    This is the cheapest, simplest form of probe there is. It rides a fundamental law of quantum mechanics that reflected photons transmit more force than absorbed ones. Unfortunately, it will take quite awhile to go anywhere significant.

    --
    So long and thanks for all the fish . . . !!!
    1. Re:Great News!! by wheany · · Score: 1

      Yeah, but you've got to watch out for those solar sailors, they're even more rowdy that their Terra-bound collagues, and like to probe places rarely (hopefully) visited

    2. Re:Great News!! by robertjensen · · Score: 1

      Actually this is not at law of quantum mechanics. Its simply the old rule of conservation of momentum. This is dating back to Newton, though he did of cause not know about photons.
      If the photon is reflected the sail must gain twice the original photon momentum in order to keep global momentum conserved.

    3. Re:Great News!! by Anonymous Coward · · Score: 0

      Sorry, it is not the photons, but the ions = atoms from the sun driving the sail.

    4. Re:Great News!! by spike+hay · · Score: 2, Informative

      Unfortunately, it will take quite awhile to go anywhere significant.

      Actually these will travel many times faster that current probes.

      --
      If you don't understand any of my sayings, come to me in private and I shall take you in my German mouth.
    5. Re:Great News!! by spike+hay · · Score: 1

      actually it is the photons. Photons can provide momentum. Have you ever heard of laser sails?

      --
      If you don't understand any of my sayings, come to me in private and I shall take you in my German mouth.
    6. Re:Great News!! by Anonymous Coward · · Score: 0

      At a very, very slow acceleration. Kinda like an ion drive.

    7. Re:Great News!! by lkaos · · Score: 2

      There is a quasi-quantum idea to it though. Light isn't a part of classical mechanics technically.

      Quantum mechanics encapsulates the old mechanics and the mechanics of sub-atomic particles. At any rate, I don't think this would have been thought of without quantum mechanics but then again, I was a little puzzled too when he said it was quantum mechanics (remember, classical mechanics is a special case of quantum mechanics).

      --
      int func(int a);
      func((b += 3, b));
    8. Re:Great News!! by robertjensen · · Score: 1

      The current description of light was made by Einstein in 1905 (he recieved the Nobel prize for this in 1921). Even though this work is an important part of the early quantum theory, it can not be said to be part of the later qauntum mechanics which was born in the 1920's.
      At any rate Einsteins work is 15 years older than quantum mechanics, so in that respect it was for sure thought of without quantum mechanics.

    9. Re:Great News!! by Anonymous Coward · · Score: 0

      Good god. Didn't anyone see "Salvage One" on TV? Especially the original made-for-TV movie that preceeded the long-lived series?

      Slow but constant acceleration gets you there much more quickly than a short ejaculation.

  5. Solar Power by laetissima · · Score: 1
    So when the price of storing, shipping, and using standard fuels becomes prohibitive, 'solar power' is suddenly an option. Granted, using light for propulsion and converting it to electricity are different processes, but the lesson is a good one. The technology is there; all that's needed is the desire for a cheaper, renewable energy source... and a tax of about $20 a gallon on gas should get the ball rolling.

    And before you ask: public transportation and my own two feet.

    1. Re:Solar Power by Anonymous Coward · · Score: 0

      Sure, when the price of transportation is prohibitive, then people will spend decades developing alteratives.

      Unfortunately, during that time in development, there will be NO transportation, or very little.

      But I guess you would rather see the economy go through a depression due to huge taxes on gas, because that will be exactly what will happen if the alternative fuels aren't available first.

      Before you ask, no, alternative fuels AREN'T here yet. Some cars are hybrids, but they still use gas. Yes, I will buy a fuel cell car when they are available. No, I take the train and walk 2 miles a day to work, but I have to drive to the station first.

    2. Re:Solar Power by spike+hay · · Score: 1

      Yes, I will buy a fuel cell car when they are available.

      But where are you going to get the energy to make the hydrogen?? You need electricity to make hydrogen. Since solar and wind are too expensive for the forseeable future, we need to build nuclear plants. Nuke plants make enough hydrogen to power cars.

      --
      If you don't understand any of my sayings, come to me in private and I shall take you in my German mouth.
    3. Re:Solar Power by GungaDan · · Score: 2
      "And before you ask: public transportation and my own two feet."

      C'mon, be realistic. How far are you really gonna get burning those?

      --
      Eloi are stupid, throw morlocks at them!
    4. Re:Solar Power by DNS-and-BIND · · Score: 1

      Great...then I can live in a one-issue fundamentalist's paradise! If it's good enough for you, it's good enough for all of society! Thanks for removing the need to vote, I was tired of getting all that mail.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    5. Re:Solar Power by Skoshi · · Score: 1

      "Sure, when the price of transportation is prohibitive, then people will spend decades developing alteratives.

      Unfortunately, during that time in development, there will be NO transportation, or very little."

      If you tax gas for public consumption, but provide public transportation options then you've created an interim phase that allows for decreased gas usage without leading to a lack of transportation.

      With recent rates of US oil consumption - 19.7 million barrels of oil in 2000 (http://www.ott.doe.gov/facts/archives/fotw191.sht ml), something has to be done to introduce alternative fuel sources at a faster rate or we'll find ourselves without access to sufficient oil to run factories, much less for everyone to have their own cars.

      Along side the problems that contiued consumption at this rate will entail for supply vs. demand, it's causing horrific problems environmentally.

      Plus, let's not forget that 12.6% of that oil comes from the Persian Gulf (same URL as above) and they are not too happy about our current weak attempts to rein in our ally Israel in their incursions into Palestinian territories. Like the Crown Prince of Saudi has pointed out, the US could be facing a major increase in oil prices, if not the elimination of a major portion of our oil.

      --
      "What are apples? Left, right, socialist...I don't know."
    6. Re:Solar Power by Carnivorous+Carrot · · Score: 1

      > "Sure, when the price of transportation is
      > prohibitive, then people will spend decades
      > developing alteratives.
      >
      > Unfortunately, during that time in development,
      > there will be NO transportation, or very little."

      Actually, economists have demonstrated time and time again that the alternatives will be developed long before needed. Prices for transportation will continue to drop unless government intervention comes to "help us", in which case prices rise. Thanks, gov't., for the "help".

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
    7. Re:Solar Power by Jeremi · · Score: 2
      You need electricity to make hydrogen.


      Not true. You can also derive hydrogen from natural gas, fossil fuels, bacteria, or mine it from the Earth's crust. There are probably other ways as well that haven't been discovered yet.


      Since solar and wind are too expensive for the forseeable future


      Says who? Tcost of wind power has been dropping dramatically over the last few years. Currently it's only a little bit more expensive than the going rate. Given some more refinements of the technology and economies of scale, it will quite likely become the cheapest form of power generation. Besides, once you've factored in the cost of nuclear waste disposal, guarding against terrorists, mining uranium, environmental cleanup, etc, nuclear power isn't all that cheap either.

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    8. Re:Solar Power by cp99 · · Score: 1

      Actually, economists have demonstrated time and time again that the alternatives will be developed long before needed. Prices for transportation will continue to drop [juliansimon.com] unless government intervention comes to "help us", in which case prices rise. Thanks, gov't., for the "help".

      This statement is quite a misleading simplification of a very complex reality. For more information on the not so perfect free market, perhaps you should read some of Amartya Sen's work.

      --
      Warning: Some ideologies on the Net are smaller than they appear.
    9. Re:Solar Power by Anonymous Coward · · Score: 0

      Its 'solar sails', NOT 'solar power'. This is something totally different.

  6. The project website by Gibbys+Box+of+Trix · · Score: 4, Informative

    Here is the co-organisers (Planetary Society) website (deeplinked to avoid crappy flash front page). It's done in conjunction with Cosmos Studios.

    There is much more in-depth information and some pictures on both of those sites.

  7. Use this instead... by Anonymous Coward · · Score: 0

    Great news! Lets load up all the powermacs and emacs and fling them into the sun! Hopefully the mac users will follow them shortly.

    1. Re:Use this instead... by meringuoid · · Score: 1

      Uh, don't you perhaps mean iMacs? Although of course we'd all like to see the back of emacs for good, firing it into the Sun does seem a little excessive ;-)

      --
      Real Daleks don't climb stairs - they level the building.
  8. more info by Alien54 · · Score: 4, Informative
    You can buy a plastic model of the space craft here.

    There is more info on the Spacecraft here on the Planetary Society Website.

    --
    "It is a greater offense to steal men's labor, than their clothes"
  9. A bit more info... by ilyag · · Score: 0

    Here (from this site).

  10. Wont work by qurk · · Score: 3, Funny

    Talk about Crazy Eddie.

    1. Re:Wont work by freeweed · · Score: 2

      I dunno, considering this *is* the Russians we're talking about, I was thinking more of "Crazy Ivan".

      --
      Endless arguments over trivial contradictions in books written by ignorant savages to explain thunder in the dark.
    2. Re:Wont work by foobar104 · · Score: 2

      Talk about Crazy Eddie.

      Show of hands: how many people actually got this joke? I can think of four: myself, the guy who posted it, and the two guys who moderated it up.

      The obscure ones are the best ones.

    3. Re:Wont work by GileadGreene · · Score: 1

      Make that five. And I'd mod it higher if I had any points to dish out. :-)

    4. Re:Wont work by glitch! · · Score: 2

      Talk about Crazy Eddie.

      Show of hands: how many people actually got this joke?


      Who didn't? I suppose you could say it has a double meaning, since it could be refering to THE Crazy Eddie probe, or it could be just a general purpose crazy eddie idea. Now where did my fyunch go?

      --
      A dingo ate my sig...
    5. Re:Wont work by docbrown42 · · Score: 1

      So, who's going to build the giant green laser to give the probe a hell of a push?

      I guess that means that society is about to crash (again). Time to stock up on water, food and ammo.

      --
      Ed Wedig
      Graphic design services
      docbrown.net
    6. Re:Wont work by qurk · · Score: 1

      No kidding. One of the blaringly obvious truths's shown by those novels is society goes in cycles and considering atom, helium, and neutrom bombs are now a part of American popular culture, and the fact that our legislators are more concerned with keeping marijuana illegal, rewarding lobbyists, and pissing off the rest of the planet, well I'm proud to be an American, but I dont know how much longer we will exist :P Not just America but our entire species. And to be honest I'm not sure that it's a bad thing :P

    7. Re:Wont work by qurk · · Score: 1

      Lol, too much beer does wonder to one's judgement.

  11. why? by garver · · Score: 2

    I don't mean to be obnoxious, but what are their goals here? I read the article and all it talked about was the mission, not about what the Russians hope to gain out of solar sail. I know in general what solar sails in general would theoretically enable, but what specifically are the Russians preparing?

    1. Re:why? by Zathrus · · Score: 3, Interesting
      To quote the website:


      WHY: To conduct the first solar sail flight and demonstrate the technique for traveling between planets -- and someday, to the stars.

      The purpose is proof-of-concept. Which is a fairly standard thing to do. NASA has done some proof-of-concept on space tethers in the past few years, but I'm not aware of any solar sail testing (but I also don't read the various space websites religiously).

      Note that this seems like a really small sail (30m diameter) for such a heavy payload (40 kg). But it is, after all, just proof-of-concept.

      Get a sufficiently light sail with a large enough coverage area and you can get to a reasonable percentage of C in a pretty short time. It works better if you have a space-based microwave power station that you test by launching this super-light sail (this is proposed/popularized by Robert Forward in a number of different science fiction/fact books).

      The issue with any space exploration is cost. To do exploration in a reasonable amount of time (100 years) you have to go a significant percentage of C. That's a LOT of speed and costs a LOT of money. You have to bankroll the project somehow, and in this case compound interest is working against you. If you can somehow bankroll a space-based power station (and it's the most cost-effective space construction I've heard of yet, but still requires something on the order of $1 TRILLION to build initially), then the cost of a super-light probe is pretty minor. Especially since you can start recouping costs immediately.
    2. Re:why? by JimPooley · · Score: 5, Informative

      Basically, what they're hoping to get out of it is space travel on the cheap. If you want to send a probe to the outer parts of the solar system, you can't carry enough fuel to constantly thrust. So you have to slingshot around other planets eking out a small supply of fuel for correctional purposes.
      Ion drive, as in Deep Space 1, is a way to lower the amount of fuel needed. This gives a very low level of thrust, but at a constant rate, so cumulative acceleration allows you to reach high speeds. This still needs some fuel, but less fuel than chemical rockets.
      A solar sail also gives low thrust which slowly builds acceleration over a period of time. And you don't need any fuel at all! So if you wanted to reach the outer solar system using a solar sail powered probe, then you wouldn't need lots of chemical rocket fuel, or ion drive propellant (Xenon was used by DS1, if I remember correctly) to get you there. You'd perhaps need a small amount for course correction, but your main source of thrust would be the sun.
      Less fuel = less weight = cheaper launches.

      This is just a prototype. If it works, it could lead to bigger and better solar sails which would make for cheaper spaceprobes to explore the outer reaches of the solar system.

      Hmmm. Sounds like this could be another Russian first in space to me...

      --

      "Information wants to be paid"
    3. Re:why? by Stalke · · Score: 1

      I read a book a couple of years ago describing the physics governing the solar sail. In book they mentioned that the first viable use of solar sailing wouldn't be for travelling to other stars or for probes, instead it would allow planetary travel between earth and mars in a reasonable amount of time.

      The ship could sail downwind to mars and instead of stopping in orbit at mars, it would pass by it. This would allow it to maintain momentum and then it would tack upwind back to earth. I forget the physics allowing the ship to pass towards the sun but it is similar to upwind sailing on a yacht. When it passes by earth and mars crews would only have on a short window to travel back and forth to the vessel before it started to the other planet.

      Another good point this book had was that the ship is very vulnerable to solar flare activity since that would be the equivalent to a storm. Unfortunately, all the material described in this book is theoretical so it will take tests like the proposal one to fine-tune the theories.

      --
      -?-
    4. Re:why? by hyperturbopete · · Score: 1

      first off we should stop thinking about it in terms of US vs Russia -- western-funded spacecraft are launched from russia because they have cheaper launch vehicles and fewer legal hassles

      the issue with ion rocket is the amount of electrical power required... Not sure how long / large a mission you need for it to pay off. Also, ion rocket usually powered by nuclear, which the well-meaning but misinformed public freaks out about (cassini) :-(

      The issue with solar sail is diminishing power away from sun, but thats about it! would be pretty sweet for lightweight science probes to the outer planets...

      I wonder how they slow down :-)

    5. Re:why? by Zathrus · · Score: 2, Informative

      I wonder how they slow down

      Either they don't, which means you do fly-bys of everything, or they slow down the same way they speed up. By using the solar wind.

      I won't even begin to say I understand all the physics involved here, but apparantly you can essentially tack against the solar wind by using concentric circles and reflecting light from one circle to the other, thus giving the sail facing away from the star (or other power source) the "push".

      Like I said, I don't really understand the physics.

      It's discussed in Robert Forward's Indistinguisable from Magic science fact/fiction novel (discusses futuristic science from a factual standpoint, then has a related SF story after each chapter).

      I suspect some sites on solar sails online would have info too.

    6. Re:why? by Carnivorous+Carrot · · Score: 1

      > This would allow it to maintain momentum and then
      > it would tack upwind back to earth.

      Doesn't tacking require something to "tack" against, like water?

      When it's all huffing and puffing outward from the sun, there's nothing to tack against.

      Also, if you're flying by Mars at a high speed, you still have to get into a landing rocket and blow a ton of fuel to slow down. And you'd need a ton more to load that fuel onto the sail as it spins around earth (not to mention a 2nd load of fuel for getting up to sail speed by Mars for the return trip.)

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
    7. Re:why? by hyperturbopete · · Score: 1

      wow tacking- sweet!

      actually It just occured to me that slowing down isn't so bad -- here's why. The outer planets all have a good number of sattelites, which means one could use these bodies to do funky orbits that would slow you down (think three body problem- not just ellipses).

    8. Re:why? by GileadGreene · · Score: 1
      but apparantly you can essentially tack against the solar wind by using concentric circles and reflecting light from one circle to the other

      Solar sails are propelled by photons, not by the solar wind (energetic particles). It os possibel to tack against photons becuase of two key facts:

      1. the reflection of photons provides force via momentum transfer - so the net force on the sail is always perpendicular to the sail surface, and can be directed by changing the angle of the sail
      2. spacecraft in heliocentric orbits can move to different orbits by changing their energy - reduce energy and you fall closer to the sun. Using fact 1, if you direct your force vector in the direction opposite to the way you are traveling (or close to it), you will reduce your velocity, and thus your energy.
      The "reflecting light between circle"s that you describe is not needed for "tacking", but is IIRC intended for use in slowing interstellar solar sails around other stars.
  12. Green Team In Space by Chucow · · Score: 2, Interesting
    That's very cool, very interesting. Glad to see that at least one space program is finally getting smart, creating a way to save energy and resources in space as well as to reduce space clutter.

    My only question is whether the "kick rocket" will enter orbit with the spacecraft.

  13. Funding from tourism by z_gringo · · Score: 1

    It's nice to see that they are still able to do some cool R&D type work. I wonder how much of this type of thing is funded by their new space tourism program? It sure would be interesting to see a budget breakdown on that. Perhaps that could get NASA to think about a similar program. It seems like a great way to fund space research without tax dolllars..

    --
    -- -- Warning. Do not stare directly at the sun.
  14. Will the madness never end. by EReidJ · · Score: 4, Funny
    Oh great, just what I needed, the sereneness of outer space being polluted by tourists with Solar Sailboats.

    You know it's just the first step, next there'll be...

    Solar Surfboards ("Dude, killer photon streams today!")..,

    Solar Beach Parties ("Hey, wicked tan in only 2 seconds!")...

    and of course, the ultimate insult, Solar Jet Skis (but at least you can't hear the noise from the engine).

    1. Re:Will the madness never end. by Daniel+Dvorkin · · Score: 2

      I was thinking more, "Arrrr, mateys, let's take the Solar Main!" Jolly Roger solar sails, charged-particle cutlasses, and of course wenches and rum ...

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  15. Volna rocket! by europrobe · · Score: 1

    It's really interesting that they'll launch it from a submarine. I wonder if a submarine launch is in any way better than a regular one, or if they do it just because they have some spare ballistic missiles to use.

    Maybe the rocket gains some starting speed from floating up to the surface before ignition, but then again this speed should be very small in comparison to the final speed of the rocket...

    Anyway - the rocket's name is Volna, not Cosmos - geez, submitters, read the article!

    --
    Score:-1, Wrong
    1. Re:Volna rocket! by Bamyazi · · Score: 1

      Launching from a sub, means they can sail right up to the equator and do their launch from there.

    2. Re:Volna rocket! by JaredOfEuropa · · Score: 1

      Probably just using the spare missiles. Apparently they offer some cheap launch capability, especially for lower orbits. I read the Delft technical university is preparing to test an experimental re-entry vehicle using one of those missiles.

      --
      If construction was anything like programming, an incorrectly fitted lock would bring down the entire building...
    3. Re:Volna rocket! by jonerik · · Score: 2

      It's really interesting that they'll launch it from a submarine. I wonder if a submarine launch is in any way better than a regular one, or if they do it just because they have some spare ballistic missiles to use.

      The Volnas (demilitarized SS-N-19s) are launched from late '80s/early '90s-vintage Delta IV subs, all of which operate with Russia's northern fleet. I suspect that they're using subs as a launch platform because they're very, very mobile and probably cheaper to use than land-based facilities.

    4. Re:Volna rocket! by JesseL · · Score: 2

      But the name would have been so much more appropriate for a launch platform if they had used Delta V subs.

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
    5. Re:Volna rocket! by TheAlmightyQ · · Score: 1

      Russian subs are actually really good at navigating up around the arctic circle, good for putting stuff in polar orbits.

      If you want to launch from the equator, this is the ship to use:

      --
      I hope you're not pretending to be evil while secretly being good. That would be dishonest.
  16. The next step in space tourism.... by stevenbee · · Score: 1

    Solar Parasailing?

    ; - )

    --
    Don't read this!
  17. One can only wish. by danielobvt · · Score: 1

    That space someday will be that crowded. Right now it seems like everyone is content to huddle around in LEO.

  18. WOW! by Rhinobird · · Score: 2

    September is going to rock! Solar sailing space craft AND new Dragonball Z on cartoon network. Yup, that's my life, space and cartoons...

    --
    If Mr. Edison had thought smarter he wouldn't sweat as much. --Nikola Tesla
    1. Re:WOW! by Anonymous Coward · · Score: 0

      Well, on the plus side, if we do find a hostile planet of Saiyans, we'll easily defeat them.

      Just shoot them between the eyes while they're busy glaring at us for thirty minutes before they even attempt to throw a punch. ;)

    2. Re:WOW! by Carnivorous+Carrot · · Score: 1

      A few laser-guided smart bombs that can punch through 30 feet of steel reinforced concrete or some daisycutters will take care of the Saiyans, that Power Rangers robot, Godzilla, Thor, Hulk, Ultraman, and all those cool giant Robotech machines, sad to say.

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
  19. Get your facts straight by IAmSancho · · Score: 2, Informative

    "aboard a Cosmos 1 rocket." No, the name of the mission and the solar sail craft itself is "Cosmos 1," not the rocket.

    --
    -------------------------

    Stupid people suck.

    1. Re:Get your facts straight by TheAlmightyQ · · Score: 2, Informative

      Actually the name of the mission is "Cosmos 1", the solar sail craft itself isn't named yet.

      http://www.planetary.org/solarsail/index2.html

      Imagine that....people on Slashdot not getting the facts straight...

      --
      I hope you're not pretending to be evil while secretly being good. That would be dishonest.
  20. Tiny by curtisk · · Score: 1

    "The 88-pound spacecraft will also carry a camera that will capture pictures of the solar sails during the mission. "

    Wow, talk about a lean ship....why don't they do more like this..? Send a 12" ball covered in solar panels, lil cam and lil' jet propellers to right itself when need be, and just fire that sucker out of a cannon or something into space?

    Well that was a very carttonish description, but really, just like other tech. smaller may be the way to go here as well.

    Interesting stuff

    --

    Sehr geehrter Toilettenbenutzer!

    1. Re:Tiny by PhuCknuT · · Score: 1

      Because the little 12" ball has no room for any kind of thrusters to navigate with. What they are trying to do is create a way to propel small probes like the one you discribe without any fuel or thrusters, just the sails. A well built prob like this could drive around the solar system indefinitly without needing to refuel.

  21. Deep Space 1? by Anonymous Coward · · Score: 0

    Can we seperate reality from science fiction here. Using DS1 as a reference is like Dan Quayle using Candice Bergman's character "Murphy Brown" as an example against being single mother.

    1. Re:Deep Space 1? by Zathrus · · Score: 2, Informative

      DS1 is the name of the ion-drive probe that was launched in 1999 (I think). It's real and is now the fastest moving man-made object in space.

      It's only science fiction to you due to ignorance.

  22. competition is good by YaRness · · Score: 1

    ..because it's the only thing that really gets us capitalist pigs off of our ass and into gear.

    history of space race

    (well, it's not going to start another space race, but it sure would be nice if it regenerated a little interest in the general public.)

    1. Re:competition is good by Sakhmet · · Score: 1

      "Assembly of Japanese bicycle require great peace of mind."

      That is my favorite quote from that book.

      The only thing that gets capitalist pigs of their asses is money. Show them how it will make money, and they'll dance. Show them how its costing them money, and it will make them angry.

      Money doesn't make the world go round, just America :)

      Sakhmet.

      --
      Ban the Nukes! Save the Whales! Screw it. Nuke the Whales!
    2. Re:competition is good by shogun · · Score: 2

      but it sure would be nice if it regenerated a little interest in the general public.

      I dont think the general public is particularily interesting or worth generating interest in myself.

    3. Re:competition is good by YaRness · · Score: 1

      I dont think the general public is particularily interesting or worth generating interest in myself.

      you'd change your mind if it was your business to find/justify funding for government projects.

      (or at the very least learn to pretend)

  23. The Economic Viability of Mars Colonization by bihoy · · Score: 5, Interesting

    Here's an abstract from a paper that discusses colonizing Mars in some detail. Very interesting.

    "The economic viability of colonizing Mars is examined. It is shown, that of all bodies in the solar system other than Earth, Mars is unique in that it has the resources required to support a population of sufficient size to create locally a new branch of human civilization. It is also shown that while Mars may lack any cash material directly exportable to Earth, Mars' orbital elements and other physical parameters gives a unique positional advantage that will allow it to act as a keystone supporting extractive activities in the asteroid belt and elsewhere in the solar system. The potential of relatively near-term types of interplanetary transportation systems is examined, and it is shown that with very modest advances on a historical scale, systems can be put in place that will allow individuals and families to emigrate to Mars at their own discretion. Their motives for doing so will parallel in many ways the historical motives for Europeans and others to come to America, including higher pay rates in a labor-short economy, escape from tradition and oppression, as well as freedom to exercise their drive to create in an untamed and undefined world. Under conditions of such large scale immigration, sale of real-estate will add a significant source of income to the planet's economy. Potential increases in real-estate values after terraforming will provide a sufficient financial incentive to do so. In analogy to frontier America, social conditions on Mars will make it a pressure cooker for invention. These inventions, licensed on Earth, will raise both Terrestrial and Martian living standards and contribute large amounts of income to support the development of the colony."

  24. Magnetic Bubbles by wyldeling · · Score: 5, Informative

    NASA has been working on an alternative to the Solar Sail. The Solar Sail has one major draw back in its design (other than being technically difficult to implement), and that is the farther out in space it goes, the less force is transmitted to it by the solar wind. (Inverse square law.) A geophysicist is currently working on the idea of using a magnetic bubble as a solar sail. The advantage of this approach is that the mag bubble grows as the solar wind decreases. This creates a force that would be relatively constant until the heliopause (the end of the solar winds effective range) is reached.

    1. Re:Magnetic Bubbles by jsse · · Score: 2

      and that is the farther out in space it goes, the less force is transmitted to it by the solar wind.

      As far as I know the inital plan is to launch it toward the Sun, and have it gain enough photon-thrust for the initial acceleration, so that it could fly toward a destination in high(and constant) speed, until it crashes or is crashed.(with well-engineered steering, crash could be avoid)

      It would be a dangerous task, as you can imagine - if it gets too near the Sun, it'll melt; if it doesn't get near enough, then the solar sail would not gain enough initial thrust for the perpetual voyage.

    2. Re:Magnetic Bubbles by shren · · Score: 2

      Anyone got any recent information?

      --
      Maybe the state's highest function is to grind out insoluble problems. (Zelazny, Hall of Mirrors)
    3. Re:Magnetic Bubbles by Catbeller · · Score: 2

      Solar sails use photons primarily for propulsion, not the solar wind, tho it is indeed a factor. I know, I'm quibbling, but it's fun.

    4. Re:Magnetic Bubbles by j09824 · · Score: 2

      Here is the research group's web site. No update since 2000...

    5. Re:Magnetic Bubbles by detect · · Score: 1
      --
      // The fastest Alt-Tab in the West
  25. what i find most impressive... by caveat · · Score: 1

    is that the russians have the cash to send this up. I haven't heard anything about them borrowing for this project, and we all know how stellar an economy they have - shit, at this rate we (us) should be able to put a 300m sail up in less than a year, especially since it looks like this would take up maybe one shuttle payload. now going off on a tangent, what happened to the russian orbiter? haven't heard about that one in years...

    --

    Facts do not cease to exist because they are ignored. - Aldous Huxley
    1. Re:what i find most impressive... by JimPooley · · Score: 2

      They just got about $20 Million off Mark Shuttleworth, to fill an empty seat. If they can do this often enough, it'll go some way towards funding stuff.

      --

      "Information wants to be paid"
    2. Re:what i find most impressive... by DNS-and-BIND · · Score: 5, Informative

      Sigh...the spacecraft is NOT repeat NOT Russian. It is a creation of the Planetary Society, a non-profit NGO founded by Carl Sagan. The Russians are merely providing an inexpensive launch vehicle, no more.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    3. Re:what i find most impressive... by jfengel · · Score: 2

      "Inexpensive" is relative. I'm sure the cost is at least hundreds of thousands of dollars. Any idea how much the Russians are charging for this? And is the Planetary Society paying for it?

  26. The equator by cryptochrome · · Score: 2

    You can park a submarine at the equator, which makes it easier to launch. It doesn't require a special facility, and it gives the Russian Navy something to do.

    --

    ---If you can't trust a nerd, who can you trust?

    1. Re:The equator by Anonymous Coward · · Score: 0

      That's if they can keep the sub off the sea floor.

      *ducks* (izvenitia)

    2. Re:The equator by TheAlmightyQ · · Score: 1

      Or in this case, they can park the sub up around the arctic circle to put it in a polar orbit.

      --
      I hope you're not pretending to be evil while secretly being good. That would be dishonest.
  27. Thank you - mod parent up by cryptochrome · · Score: 2

    The magnetic bubble approach uses less mass, is possibly more energy efficient, has a more flexible design, has a much greater operating range, and offers the wonderful bonus of sheilding the craft from the solar wind. Although since it can't capture the energy from photons, only ionized particles, the motive force is fundamentally different.

    --

    ---If you can't trust a nerd, who can you trust?

  28. But Can we See it? by pythorlh · · Score: 2

    Any of you astronomer types out there able to give a rough guess as to the intinsic brightness of this thing? Will it be a naked-eye object? Perhaps only at certain times of the year, when Earth crosses it's reflection path. Inquiring minds (and lazy slashdotters) want to know.

    --
    Do not confuse duty with what other people expect of you; they are utterly different.Duty is a debt you owe to yourself.
  29. Don't think that... by keep_it_simple_stupi · · Score: 1

    Other countries are ahead of us... We're doing the same things at the university level already.

  30. Solar Jet Skis by Anonymous Coward · · Score: 0

    the ultimate insult, Solar Jet Skis (but at least you can't hear the noise from the engine).

    But that laser shinning straight up will be obnoxious.

  31. Re:costs by hyperturbopete · · Score: 2, Informative

    well.... the way things are now, the biggest hardware cost for space flight is the launch vehicle. you need like 7.5 kilometers/second to get into Low Earth Orbit, this generally sets you back $5K to $10K per kg into LEO (or like a factor of 3 or 4 higher for Geosynchronous Transfer Orbit, which is used for comm sats).


    http://www.faqs.org/faqs/space/launchers/


    then you need like another 3 or 4 kilometers/second to get to the rest of the solar system (and you can do tricks like gravity assist etc once away from earth)

    so the problem isnt using a chem. rocket to go to mars, jupiter, etc but hauling that rocket's fuel up into LEO...

    solar sails require zero fuel. other futuristic space propulsion types all consume LOTS of power, which means bigger launch vehicle, bigger costs

  32. OT- nice .sig by marcus · · Score: 0, Offtopic

    that's all.

    --
    Good judgement comes from experience, and experience comes from bad judgement.
    - W. Wriston, former Citibank CEO
  33. Great books on Mars Colonization by laetus · · Score: 3, Insightful
    Kim Stanley Robinson wrote some kickbutt books on the whole colonization of Mars:

    Red Mars

    Green Mars

    Blue Mars


    I found Red Mars to be the best, followed by Green Mars. These two gave the best presentation of what it would be really like to colonize Mars that I've ever read. Cool books.

    --

    "We're sorry, but the website you're trying to reach has been disconnected."
    1. Re:Great books on Mars Colonization by Galvatron · · Score: 1

      Sadly, they are ruined by an absurdly poor depiction of martian civilization. Read Red Mars, when they're all still colonists, but give Green Mars a pass. Never made it to Blue Mars, so I can't vouch for that one.

      --
      "The question of whether a computer can think is no more interesting than that of whether a submarine can swim" -EWD
    2. Re:Great books on Mars Colonization by Anonymous Coward · · Score: 0

      I read all three books. I really liked them. The only qualms I had were that she takes a very negative view of human nature. I didnt like that. I wish she would've spent more time on the technology and less on the personal drama...but hey, i'm a nerd!

  34. Check Space Weather when sailing by ch-chuck · · Score: 3, Interesting

    right here - current conditions:
    Solar Wind speed: 512.9 km/s
    density:3.5 protons/cm3

    plus more.

    --
    try { do() || do_not(); } catch (JediException err) { yoda(err); }
  35. We're born too early!! by Anonymous Coward · · Score: 0

    Many Many times the same thought recurs in my mind....I have been born too early....
    With no chance of taking off beyond earth to the other planets and beyond in this lifetime, I feel I would have been better off born a 1000 years from now.
    I can clearly see myself riding on spaceships, and going to different star systems, and different planets. In other words, the life depicted in Star Strek.
    Raring to say, "Beam me down, Scotty!!".... Alas!!!!!!!

  36. What is most impressive is by marcus · · Score: 2, Informative

    That the Russian economy is definitely on the upside. Just read a bit about their new tax laws and the results. Should be required reading for all taxpayers.

    http://www.theglobalist.com/nor/gdiary/2000/05-3 1- 00.shtml
    http://www.russiaeconomy.org/comments/02 2102.html
    http://www.heritage.org/views/2002/ed03 2102.html
    http://www.nationalreview.com/nrof_comm ent/comment -mitchell032202.shtml

    For more, just hit google.

    --
    Good judgement comes from experience, and experience comes from bad judgement.
    - W. Wriston, former Citibank CEO
  37. Just like the ancient Bajorans by Wise+Dragon · · Score: 3, Interesting

    Reminds me of Deep Space 9, Season 3, Episode 22, "Explorers", which I just watched this morning. Sisko and his son pilot a reconstruction of an ancient Bajoran solar-sail spacecraft to Cardassia. They run ino some difficulties with "tachyon eddies" ripping their sails off.

    Wonder if there really are some kind of particle eddies which would damage the sails?

    1. Re:Just like the ancient Bajorans by Anonymous Coward · · Score: 0

      No, the story was just total nonsense.

    2. Re:Just like the ancient Bajorans by Ziviyr · · Score: 1

      Wonder if there really are some kind of particle eddies which would damage the sails?

      I think an attack by the dominion is more likely.

      --

      Someone set us up the bomb, so shine we are!
  38. Re:costs by Zathrus · · Score: 2, Informative

    Well, it's not so much that solar sails require zero fuel, it's just that the fuel they need isn't being provided by us.

    And yes, that's a big advantage.

    The big disadvantage, of course, is that solar sails are freaking slow. And freaking big. Freaking big means there's a lot more things to go wrong. Freaking slow means that you have to be able to wait a long, long time for any data from the sail. The other problem with freaking slow is that if it's too slow then it's likely to be passed in transit by some newer technology that isn't freaking slow.

    Using solar sails for in-system transit would take years to go places (which may be ok for unmanned ships). Using them for interstellar voyages without some kind of powered assist (e.g. - space based microwave power station) makes it so slow that you'll either get passed or whatever agenda sent you is long gone by the time you get to your objective.

    Solar sails are definitely neat, but they aren't a panacea to space travel problems.

  39. Organic Remedy by Skip666Kent · · Score: 1, Troll

    What they might need to do is develop an 'organic' sail that grows over time, increasing the surface area to match (as closely as possible) the inverse sqare rule.

    --
    **>>BELCH
    1. Re:Organic Remedy by Anonymous Coward · · Score: 0

      Err yeah. Given that the sail is a closed system do you suppose that the organic sail growing in response to the inverse-square law would require energy that would be proportional to the square of the distance, and hence negate any advantage you gain from the solar sail? The point of the sail is that it doesn't require onboard fuel.

      Think! I know that people besides myself can think; prove to me that it is so.

  40. How does this work? by Anonymous Coward · · Score: 1, Interesting

    Can you tack against a solar wind? I kinda don't think that photons exhibit a gas pressure like wind (you can push a balloon around, but not inflate it with light?) that would make use of a wing surface on a sail for movment against the solar wind.

    Does anyone know? Are solar sailers destined to get thrust only away from the sun?

    Adam

    1. Re:How does this work? by fredrik70 · · Score: 1

      If the sail is reflecting the photons will bounce of in an angle and giving you it momentum in an angle relkated to the ship thus giving you the ability to control your direction. You could however never sail towards the sun, you could slingshot around a planet further away from you and then retract your sail (or have a nonreflecting front of the sails) and just go on your momentum towards the sun

      --
      if (!signature) { throw std::runtime_error("No sig!"); }
    2. Re:How does this work? by Catbeller · · Score: 2

      Um, yes you can sail towards the sun, by tacking against the sunlight to reduce orbital velocity around the sun, thus dropping steadily towards the sun. Um, think of a shrinking spiral.

      Reverse the process by tacking to increase orbital speed, and you move away in an increasingly large spiral.

    3. Re:How does this work? by fredrik70 · · Score: 1

      *slapping head*
      Ah, of course! using the gravitational pull!
      Never thought of that - stupid me.
      Thanks for the info.

      --
      if (!signature) { throw std::runtime_error("No sig!"); }
    4. Re:How does this work? by Anonymous Coward · · Score: 0

      it seems to me that if you orient the sail to avoid practically all the photons from the sun, your craft would revolve around the sun in an ellipse, not a shrinking spiral. That is unless the orbital escape velocity has already been reached.

    5. Re:How does this work? by Anonymous Coward · · Score: 0

      i can see that my comment about avoiding the photons and staying in elliptical orbit is beside the point here.

      tacking away subtracts angular momentum from the sail craft and would tend to give a shrinking spiral, mea culpa

  41. Bernoulli effect or momentum transfer? by c4miles · · Score: 1

    Does anyone know whether these sails work with a bernoulli effect (like a yacht sail) or simple momentum transfer (like a parachute)?

    Please forgive the oversimplification, it's done in the name of clarity.

    1. Re:Bernoulli effect or momentum transfer? by mjfgates · · Score: 1

      Momentum transfer. The photons come from the sun, they bounce off the sail, it makes the sail go. Although, really, the Bernoulli effect is just momentum transfer too.

    2. Re:Bernoulli effect or momentum transfer? by Anonymous Coward · · Score: 0

      I believe the poster was asking whether it was the force caused directly by particles colliding perpendicular to the surface of the sail or if it was a force caused by a particle pressure differential from one surface of the sail to the other.

      My *guess* is that these sails don't tack like sailboats or experience lift like airplane wings, it's the particle collision that counts.

    3. Re:Bernoulli effect or momentum transfer? by Anonymous Coward · · Score: 0

      > Although, really, the Bernoulli effect is just
      > momentum transfer too.

      Much like masturbation, for example, to a picture of Shakira's wide hips, bare feet and thick, thick, hot big toes.

  42. S-Band Radio by david+z,+horse+guy · · Score: 0
    ...for those that don't know: S-Band radio waves are in the 3 Gigahertz range, near X-band RADAR on the electromagnetic spectrum. ... "Many deep-space vehicles use S-band and X-band frequencies which are in the neighborhood of 2 to 10 GHz. These frequencies are among those referred to as microwaves, because their wavelength is very short, only a few centimeters. Deep space telecommunications systems are being developed for use on the even higher frequency Ka-band." (From this website.)

    So the next time your radar detector goes off, it might not be a cop, it could be NASA trying to communicate with a Solar Sail!

    --
    I'm a lacto-ovo-pesco-carno-vegetarian
  43. Previous solar sail discussions on Slashdot by pomakis · · Score: 4, Informative
    FYI, here are some previous solar sail discussions on Slashdot:

  44. Getting OT, but Re:Solar Power by Joe+U · · Score: 1

    If, for example, the US actually put money into more energy efficient transportation, like passenger rail, more people might use it. Then we would be able to better use our resources for improving our other much more wasteful forms of transportation.

    For Example:
    --
    Federal transportation funding 1971-2001

    $1,890,000,000,000 Air & highway funding
    $ 30,100,000,000 National Passenger Rail funding

    -Sources: New York Times, Washington Post

  45. Starlight? by cryptochrome · · Score: 2

    So here's a question for you - if a solar sail is reflective on one side, and absorptive (black) on the other, shouldn't it be possible to sail on ambient light (including starlight, slowly) alone? If I'm not mistaken that's the same principle as those little whirling light bulb toys.

    Does the russian design exploit this property?

    --

    ---If you can't trust a nerd, who can you trust?

    1. Re:Starlight? by Carnivorous+Carrot · · Score: 1

      Those little whirling toys, or "radiometers", as scientists Edmundi refer to them, do not operate on photon pressure.

      They operate on the black side of the vanes getting warmer than the white sides, thus the molecules on that side are vibrating faster (temperature being the average molecular motion of a substance) and thus kick any billiard-balling air molecules away faster than the light side does. This transfers more momentum to the black side than the white side, thus it starts to spin.

      The purpose of the bulb is not to preserve a partial (or complete!) vacuum, or a special gas, but to keep ambient currents away from the device. It's only a paper cap on the bottom.

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
  46. Call me back in 100 years... by Anonymous Coward · · Score: 0


    When this thing gets up to speed.

  47. Flight manual for the Solar Sail(er).. by PongStroid · · Score: 1

    First: Turn console switch ON... and LEAVE EVERYTHING ALONE.

    Please refer to this for additional instruction.

    And I can not repeat this enough: Watch out for the grid bugs!

  48. Re:costs by Russ+Steffen · · Score: 1

    Solar sails aren't necessarily slow. Current space probes have no onboard main engines, just attitude jets, sometimes a braking engine. They leave earth with a big push, but after that they only way they can accelerate is with gravity slingshots. And it still takes them years to get anywhere. Cassini was launched in what, 1997, and it still hasn't made it to Saturn yet.

    Solar sails (and ion engines) will also get a big push off from earth, will also be able to gravity-well slingshot. And they will also be able to accelerate continuously while en-route. They will be much, much faster than the current probes.

  49. Just who is running these experiments? by Gaijinator · · Score: 1

    Just so you know, some of the designs (most notably the sails) were tested by adolescent (think Freshman/Sophomore in high school) students. True story! Here is a link to the project description, though it's brief on info, and here is an mpeg of the simulations. I wouldn't be too frightened, though, since they did a generally good job.

    --
    "For success, it is essential you have Thunderball Fists." "I can have such a thing?" "That's right. Thunderball Fists."
  50. Stories from days past by Anonymous Coward · · Score: 0

    Anyone remember the series of gradeschool books that began with Lions, Tigers, and Dinosaurs? The 6th grade book contained a story about a family leaving in a lightsail ship. Within minutes it was going too fast for even laser beam communications to keep up with it!

    Wow!

    If I recall correctly, it also had a story about a little Indian or Mexican boy who went in for a haircut. The barber told him to go away because he had a "greasy head". Later the barber cut his hair because he was a friend of someone. All I could think was why the hell didn't he go home and wash his greasy head. What a dope! Is the barber supposed to get all his tools greasy because the boy is a slob?

  51. ALSO!!! by masterkool · · Score: 0

    Since there is little to bump into in space (ie. friction) the probe will move faster and faster. To a point of course.

    --
    I once shot a man who posted too many, "Imagine a beowulf cluster of these"
  52. hope it succeeds. by RestiffBard · · Score: 2

    very very excited by this launch but I hope it works in ways I don't normally worry about launches. whats the chance that NASA would try a solar sail if the russians fail? and the russians don't strike me as being pioneers anymore. ok this is pioneering but they don't strike me as being successful pioneers of late. good luck ruskies.

    --
    - /* dead coders leave no comments */
  53. hmm by SPaReK · · Score: 1

    Just the camera, S-band radio and main computer are yet to be completed.

    Well, atleast the wings are installed... its almost ready.

  54. I hope it doesn't... by DLWormwood · · Score: 1

    ...run into any grid bugs or recognizers out there.

    Geez, 100 posts and NOBODY took a stab at a comment like this?

    --
    Those who complain about affect & effect on /. should be disemvoweled
  55. M2P2 by TeldakSS · · Score: 1

    UW Staff Bios. Read the very last one. Robert Winglee. He has been developing M2P2, a technology similar to Solar Sails, but much easier and efficient. I don't have a link to his essay on it [pdf], but it is very lengthy, and describes all the needs of such a system.
    Basically it takes gas, heats it to a very high temperature, strips away everything but the plasma, and shoots the plasma into a magnetic field which then catches the solar wind. Rather ingenious. Speed are incredible (twice current technology), and it has massive fuel economy.
    I was at a speech of his, in which he explained the technology, and it's competitors in the field. Basically, a solar sail is extremely inefficient, because it has to weigh nil, be thinner than paper, and not tear easily.

  56. hehe by Edmund+Blackadder · · Score: 2

    "whats the chance that NASA would try a solar sail if the russians fail? " - almost certain.

    Having good american engineering succeed where the Russians failed should be just the kind of story that NASA could use to get funding from politicians.

    Now if the Russians were succesful ... i doubt NASA will touch solar sails in a loong time. No politician wants to pay for the honor of trailing the russians.

  57. Re:OT- what a waste! by Anonymous Coward · · Score: 0

    Of mod points that is. He even marked it OT himself. Time and points would be much better spent modding good stuff up!

  58. Straight from Sagan's Crew in Pasadena by Omasu.of.Travar · · Score: 1

    First off, thanks to Gibby's Box of Trix, Alien54, europrobe, IAmSanco, DNS-and-BIND, and anyone else I may have missed for straighening out some of the posts mistakes.

    Allow me to officially clarify a few things...

    The solar sail vessel being launched this September is, as DNS put it, NOT a Russan project, but a privately funded project of the Planetary Society and Cosmos Studios. You can read more about the project here: http://www.planetary.org/solarsail/index2.html

    Also, the Society is using a converted, submarine-launched Volna ICBM (a Russan missile) to launch the solar sail into orbit. Additionally, the solar sail is being built at the Babakin Space Center in Russia, under contract to the Planetary Society.

    Finally, the sailing vessel's name is "Cosmos 1."

    If you want to learn more about the project's progress, I suggest you subscribe to our SolarSail newsletter at http://www.planetary.org/solarsail/index2.html

    Darrin Dennis
    Web Marketing
    The Planetary Society