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Hayabusa Earth Flyby Swings Toward Asteroid

An anonymous reader writes "As the first of its kind to return asteroid samples to Earth, the Japanese Hayabusa mission took pictures this week during its successful Earth flyby. Eventually headed to the asteroid belt, the probe will feature a novel sample collection 'horn' which hops around on the asteroid's surface and lands intermittently for only a second at a time. The samples will be dust clouds fired up from repeated bullet impacts, since the asteroid's low gravity makes it difficult to 'land' on. When faced with a similar problem, the European Rosetta mission alternatively will harpoon the surface to hang on while also touching down on another small-mass asteroid."

13 of 85 comments (clear)

  1. Obligatory Ninja gaiden reference by Anonymous Coward · · Score: 4, Funny

    Your father has been killed in a duel with an asteroid and you are given his magic horn to avenge his death. Press start to play!
    (Note for the people who don't get the reference, Hayabusa was the last name of the Ninja in the Ninja Gaiden games)

  2. Small procedure shortcut? by Roland+Piquepaille · · Score: 5, Funny

    Hayabusa, which is Japanese for "falcon", will act much like its namesake, descending to the asteroid's surface, capturing its prey and returning it to Earth.

    Presumably it'll let go of it before coming back? otherwise it'll be the biggest space sample ever collected.

  3. Typical Japansese Tourist! by Timesprout · · Score: 4, Funny

    Photographing everything in sight.

    --
    Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
    What truth?
    There is no dupe
  4. Harpoon? by fiannaFailMan · · Score: 4, Funny
    When faced with a similar problem, the European Rosetta mission alternatively will harpoon the surface to hang on while also touching down on another small-mass asteroid
    He beckons! Follow him, men! Death to the white asteroid!
    --
    Drill baby drill - on Mars
  5. I love Earth flybys... by another_henry · · Score: 4, Interesting

    Check out this awesome photo of the Moon and Earth together, taken by Galileo more than a decade ago during its Earth flyby.

    --
    "Studies have shown that people who eat peanuts live longer than those who do not eat."
  6. Artist's impression by fiannaFailMan · · Score: 4, Insightful

    The article has an artist's impression of Muses-C doing its thing. Takes me back to the old books I used to read that were full of airbrush pictures - artist's impressions of futuristic space missions. There's something inspiring about that style that computer graphics have never been able to replicate.

    --
    Drill baby drill - on Mars
  7. Four years for one gram? by Arcanix · · Score: 4, Funny

    Taking off from Kagoshima in southern Japan on its 22 month outbound trip, the Muses-C space probe is scheduled to visit the 1998 SF36 asteroid, 186 million miles from Earth, and bring back a single gram of rock in four years' time.

    I bet on the street you could get at least 100 bones for that gram rock.

  8. But is it the size of France? by beeplet · · Score: 4, Interesting

    I'm surprised I never heard of this project before! It's a great idea - astroids contain various minerals that can be used to trace the evolution of the solar system. Of course we have some access to this info from the odd meteorite, but I would guess that rock from the astroid belt will be more "pristine".

    The only drawback I see for this project is that it is only going to sample the surface of the asteroid, which is the region most exposed to cosmic radiation, cratering, and accumulated dust. Naturally there is still something to be learned from that, but I hope this is just a prelude to a more advanced mission to bore larger samples from the asteroides. I imagine that the difficulties in doing that come mostly from stabilizing the spacecraft, given that it's likely the asteroids are actually loosely bound collections of the rubble left over from previous collisions. Of course, if they're not, that would be interesting too.

    And slightly off topic - I think this comparison is funny:

    The material in the belt ... ranges in size from dust particles to rock chunks as big as Alaska.

    Exactly how do you compare a large, roughly spherical mass to "the size of Alaska"? Maybe they mean the surface area is the same? The surface area of Alaska is about 1.5 million km-squared; the surface area of Ceres, the largest asteroid, is about 11 million km-squared - that's more like the total area of the US (9.6 million km-squared)!

    Or maybe they meant to compare the radii? If Alaska were circular, it would have a radius of 690 km. The radius of Ceres is 466 km. Interestingly, a better comparison in this case would be the size of France (effective radius of 420 km), and France is of course the international standard for measuring astronomical objects... Did you know that the base of Olympus Mons is also about the size of France?

  9. Bullets & Harpoons in Space? by CHaN_316 · · Score: 4, Funny

    "The samples will be dust clouds fired up from repeated bullet impacts, since the asteroid's low gravity makes it difficult to 'land' on. When faced with a similar problem, the European Rosetta mission alternatively will harpoon the surface."

    -NOW- who's weaponizing space? Looks like the Japanese and Europeans. This is a threat to our national security! We have a space harpoon capability gap! Mr.President, we recommend making a space harpoon that is two times bigger than the european's space harpoon... to deter them from attacking more asteroids.

    --
    "There is no spoon." - The Matrix
  10. "Scratching the surface" by tslack2000 · · Score: 3, Interesting

    Certainly taking this to the next level as compared with the NEAR (Nasa Probe) that was not designed to bring back material.

    While this is an improvement, it still only scratches the surface as it will only bring back "up to one gram of material". Also, consider that the gram of material is from the very surface of the asteroid, which is most likely contaminated by other collisions. Still quite an accomplishment if they can recover the material in 2007 as predicted.

  11. Hayabusa Confusion by Chairboy · · Score: 3, Funny
    Did anyone else, upon reading about a Hayabusa in space, imagine for a moment something like this?

    A Space Hayabusa

    Please? I'd hate to be the only dork out there....

  12. Re:That's Funny... by emtboy9 · · Score: 3, Interesting

    Why is that so outrageous? Think about it. Earth sends off millions of watts of RF signal every second of every day. We inadvertantly beam out radio stations, television stations, communications, radar, etc etc etc.

    Now, since you assume that aliens, if there are any (personally I think there probably are) are not "stupid fucking idiots" then you would also have to assume that they have means of intercepting signals on one of the most simple forms of transmission available.

    Which means, for as long as the waves make it through space, anyone who gets the signal, decodes it, watches it, or listens to it and eventually understands it will hear Howard Stearn, Talk radio, really bad music, some really good music, several episodes of law and order a day, war movies, disaster movies, murder mysteries, violence in all formes of transmitted media, news feeds from war zones, news feeds from disaster zones, crime scenes, etc etc etc.

    How could they NOT get a very bad picture of earth, just by observing our inadvertant transmissions?

    And again, we ARE talking about a completely alien culture. For all they know, Independence Day was a documentary, showing that Earth will destroy anyone who attacks it from space. Or perhaps the War of the Worlds film will show them that if they land here, they will die of disease. Or worse.

    Maybe they will see "Day after Tomorrow" and decide that since the earth is now under hundreds of feet of ice and snow, we will be easy pickings.

    Then again, they may get wireless or satellite internet access, read slashdot, and fear the /. effect.

    --
    "Our funds have never taken part in toxic or death spiral convertible financings of any sort" -BayStar's managing partne
  13. Specifically... by Captain_Chaos · · Score: 3, Interesting

    Hayabusa, which is Japanese for "falcon",...

    Specifically, a peregrine falcon, which is the fastest animal in the world. It can reach speeds of 440 kph (275 mph) when diving for its prey. This also accounts for the name of the fastest road bike in the world, the Suzuki Hayabusa. Impressive stuff...