Space probe fires bullet into asteroid

Discussion in 'Science' started by Durandal, Feb 22, 2019.

  1. Durandal

    Durandal Well-Known Member Donor

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    [​IMG]

    (CNN)A Japanese space probe has successfully fired a "bullet" into an asteroid as part of a mission to collect rock samples from the celestial body.

    The projectile disturbed material from the exterior of asteroid Ryugu which then floated from its surface due to the weak gravitational field.

    These particles were successfully collected by the probe, according to Japan's space agency JAXA, which announced that the Hayabusa 2 craft had successfully touched down on on the asteroid on Friday morning Japanese time.

    ... https://www.cnn.com/2019/02/21/asia/japan-asteroid-sample-scli-intl/index.html


    Notice the "Heiligenschein" around the spacecraft's shadow? That's the same effect you'll see in Apollo lunar surface photos. It is due to how the regolith, which has a lot of glassy particles, reflects light. The effect is also visible on earth under the right conditions:

    [​IMG]
    https://en.wikipedia.org/wiki/Heiligenschein
     
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  2. Durandal

    Durandal Well-Known Member Donor

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    Video of the moment of landing and "bullet" impact at different speeds:

     
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  3. HereWeGoAgain

    HereWeGoAgain Banned

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    When will this madness with guns end?!?!?!

    :D
     
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