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Hayabusa Probe Lands on Asteroid After All

pin_gween writes "Reuters.UK is reporting the the Hayabusa space probe successfully landed on the asteroid Itokawa. JAXA officials are trying to determine whether to attempt another landing. The probe has had a series of glitches, and failed to drop a set of instruments upon landing."

19 of 126 comments (clear)

  1. New name for probe by Viper+Daimao · · Score: 4, Funny

    Considering that they lost connection with it and how it still managed to land perhaps they should rename it the Zatoichi probe.

    --
    "In the game of life, someone always has to lose. To me, if life were fair, that someone would always be Oklahoma." -DKR
    1. Re:New name for probe by geomon · · Score: 3, Funny

      What kind of probe gives massages? .. oh .. never mind!

      No amount of mind-detergent will wash that image away!

      --
      "Rocky Rococo, at your cervix!"
  2. It landed, but... by Billosaur · · Score: 5, Informative

    ...apparently did not deploy its sampling tools, which was kind of the point of the mission. Still, it's a pretty major feat and the article says they might try again, to see if they can get their samples. And check out this great image of the asteroid with the probe's shadow.

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  3. That's no moon, er, asteroid! by AndroidCat · · Score: 5, Funny
    --
    One line blog. I hear that they're called Twitters now.
  4. Hayabusa? by voice_of_all_reason · · Score: 4, Funny

    Make sure it has the fire wheel equipped for Jacquio. And kill the tail first when you fight the statue.

  5. Re:I bet by geomon · · Score: 4, Interesting

    Anyways....why did they send the probe up anyways

    For the same reason we send robots into hazardous environments - it is too dangerous to justify sending humans.

    We need to know how to land on asteroids. That skill might become valuable someday.

    --
    "Rocky Rococo, at your cervix!"
  6. Enough of this space drama by technoextreme · · Score: 4, Funny

    Just do what NASA does and ram that asteroid kamikaze style.

    --
    Ooo man the floppy drive is broken. No wait. The computer is just upside down.
  7. How much AI? by Obvius · · Score: 4, Funny

    You have to wonder just how autonomous this probe is, if the news that it successfully landed (and has subsequently taken off again) comes as a surprise to Mission Control.

    1. Re:How much AI? by geomon · · Score: 3, Funny

      Somewhere there is a kid playing Moon Lander on a console that has a wireless connection to the JAXA Mission Control.

      --
      "Rocky Rococo, at your cervix!"
    2. Re:How much AI? by meringuoid · · Score: 5, Funny
      You have to wonder just how autonomous this probe is, if the news that it successfully landed (and has subsequently taken off again) comes as a surprise to Mission Control.

      It's a robot. A space robot. A Japanese space robot. You know what those things are like.

      It's probably going to head off to another planet to fight giant fearsome monsters now.

      --
      Real Daleks don't climb stairs - they level the building.
  8. Waiting for the naysayers... by Techguy666 · · Score: 4, Interesting

    With the number of setbacks the probe has had,I was honestly surprised to hear they made a relatively successful landing (minus the tool deployment). Considering the number of people out there claiming the first lunar landing never happened, I'm also surprised that there aren't more skeptics out there demanding more proof that the probe did land on the asteroid and that this isn't doctored data to help the Japanese space agency save face. I mean, hitting a fast moving target with a glitchy probe is an amazing feat. I guess this isn't a major space agency and this isn't a major project compared to NASA and the first manned lunar landing, so it's not going to attract the attention of the fringe...

  9. Asteriod rides for deep space exploration? by elliotj · · Score: 4, Insightful

    (disclaimer: I know absolutely nothing about this topic)
    Does anybody know whether we could use asteroids to transport probes around space?
    Wouldn't an asteroid potential provide a fast and free transportation system? Wouldn't they provide rudmentary protection against space radaition somewhat?
    If you ask me, NASA and other space agencies should be firing out probes like crazy. Small, inexpensive ones. Do lots of them. And make it so they can communicate with each other. Sort of like a mesh network in space: so one far away could communicate back via other ones.
    We seem to spend a lot of time and money fussing about with silly low gravity science on ISS when we could be exploring the galaxy with probes. I've been very impressed with the Mars probes and would like to see more of that sort of thing.

    1. Re:Asteriod rides for deep space exploration? by david.given · · Score: 5, Interesting
      Does anybody know whether we could use asteroids to transport probes around space? Wouldn't an asteroid potential provide a fast and free transportation system? Wouldn't an asteroid potential provide a fast and free transportation system?

      No, not really... because in order to get to the asteroid, you've got to match orbits with it, which means that you're already going to whereever the asteroid is going.

      Wouldn't they provide rudmentary protection against space radaition somewhat?

      This might be more useful, but given that the only major cause of radiation in space is the sun, and shielding machines against solar radiation isn't actually that hard, it's probably not worth it.

      If you ask me, NASA and other space agencies should be firing out probes like crazy.

      Absolutely.

      Given that we now have two designs of Mars probe that have proven to be wildly successful --- the Spirit and Opportunity rovers, and the Pathfinder lander --- I think that the right think to do now is to mass produce them, bulk launch them, and drop a dozen of each on Mars. Because the design's been finalised, the cost per probe should be a fraction of what it was for the original; just work from the blueprints. And because you're launching lots, you can stand a higher failure rate, so you can target more interesting parts of the planet. That way you should be able to get some seriously interesting science, very cheaply.

      (The reason why all the Mars probes are showing really boring bits of desert is because they've been deliberately targeted at wide, flat areas to increase the chances that they'll get down safely.)

    2. Re:Asteriod rides for deep space exploration? by EnderWigginsXenocide · · Score: 5, Informative

      To land on an asteroid you have to speed up your space probe to a speed that's within a few FPS (Feet Per Second) of your target asteroid, as well as get your probe going in the same direction. Can't meet your 1000 MPH asteroid while you travel at 100 MPH. That's like hitting a wall at 900 MPH.

      Now that's not so hard to do that we'd never consider doing it (in fact we[humans] have done it.)

      Here's the catch. Once your spacecraft/probe is flying at the same speed and in the same direction as the rock you want to ride on, why bother with the landing? Rocks go through space on and on because they are in an orbit, and will follow that orbit till pushed out of orbit (gravity, impact, thrust from a drive.) Your spacecraft/probe will also stay in the same orbit until it is pushed out of that orbit.

      So, now that we have some super-simplified physics we can get to the point.

      If you're going to burn a certain amount fuel to put your craft into a certain orbit it'll stay in that orbit. It dosen't make a diffrence if it's sharing that orbit with a rock or going solo. Trying to set up an elaborate ballet between your probe and another body is a risk that's not needed (unless your goal is to study those bodies found in space.)

      As far as protection from radiation goes, spacecraft have spent decades (Voyager craft) in space with radiation shielding integrated into them certainly seems like enough that we don't need to use asteroids (of unknown composition) for radiation shielding.

      As far as the use of landing on asteroids, there's a whole hell of a lot that we don't know about them. It is worthwhile to make these landings for the sake of learning about our solar system. (Not looking for a debate on funding for space science vs spending elsewhere.)

      --
      Blessed are the pessimists, for they have made backups. -- 0 1 My two bits
  10. Re:I bet by Billosaur · · Score: 3, Interesting
    For the same reason we send robots into hazardous environments - it is too dangerous to justify sending humans.

    Of course it's dangerous! It's space! Vacuum, radiation, and all that. And yes, unmanned probes do a wonderful job scouting things out (look at the Voyager probes and the Mars rovers). But unless we're planning to colonize Mars with von Neumann robots and allow them to become an advanced civilization bent on destroying humanity (cue Battlestar Galactica theme [the old one]), Mankind is eventually going out there to face the hazards.

    This is the same argument they made when the idea of going to the Moon came up. Jerome Wiesner, head of the Presidential Science Advisory Committee recomended to Kennedy that unmanned Moon probes would be more cost effective and just as useful in beating the Russians. But the Russian had been besting us in human spaceflight, not probes (it seems like every probe they tried to send to Mars crashed or missed the planet) and in the end, men went to the Moon, though the Surveyor and Ranger probes went there first to scope things out.

    What it comes down to is that there are alway Nervous Nellies who look at the expense and/or danger factor involved in something and go "we shouldn't do that" while simultaneously hiding under their beds. The movement of Mankind to space is inevitable, just as Columbus, Magellan, Cook, the Wright Brothers, and Lindbergh leading us into new frontiers was in their time. You can't stop progress, and anyone who thinks we're going to sit here on our over-crowded, polution-tinged rock and let the robots have all the fun is kidding themselves.

    Besides, I want a job as an asteroid rockhound.

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  11. 'risk' is hardly why... by FooAtWFU · · Score: 4, Insightful
    Forget the danger. Humans:
    • are very heavy
    • get cramped, bored
    • need food
    • need water
    • need air
    Robotic probes just run off a power supply. Now consider which is cheaper to launch.
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    The World Wide Web is dying. Soon, we shall have only the Internet.
  12. projection by msbsod · · Score: 5, Interesting

    Over a distance of 3x10^11 m they land on an object only 548 m long. The corresponding opening angle is so small that my calculator cannot do the math.

    Congratulations!

  13. Ugh. I'll bite this troll (with useful info too!) by efuseekay · · Score: 5, Informative

    The first successful asteroid landing attempt was done on Eros by the NEAR spacecraft :

    See Here.

    The amazing thing is that NEAR was not even designed to land : they mission controllers did it because NEAR was running out of fuel and would be turned off anyway so they decided to chance it. They put it down (after a few bounces on the surface too) and turned it off. One day they might try to turn it on again.

    The point is, that it is not impossible to do it. Indeed, the physics is pretty simple. There is no "hitting a fast moving target" problem : the probe is already in orbit and moving pretty slowly relative to the asteroid. The problem is systems engineering : all the problems that you see from the probe is not because some tools malfunctioned outright etc, it is poor integration of systems. Just look at the communications downlink blackout during the landing rehearsal that results in the loss of the MINERVA miniprobe. I mean, come on, you can PREDICT when those blackouts occur!

    Finally, your rant about "Japanese cheating to save face" is just pure flamebait.

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  14. Landing in Oz, eh? by whitehatlurker · · Score: 3, Funny
    Hayabusa was launched in May 2003 and has until early December before it must leave orbit and begin its journey home. It is expected to return to Earth and land in the Australian Outback in June 2007.

    Hmmm. It's going to have to hussle its metallic behind to make that deadline.

    The last part just reminds me of the Monks' song "Skylab":
    Take 1000000 and 3
    SKYLAB! [repeated]
    [Australian accent] Ouch ... something came down on me head. Look at the size of that. It looks like a bloody big tin can.
    [Other Australian] You reckon it's got any beer in it?

    --
    .. paranoid crackpot leftover from the days of Amiga.