Japanese Spacecraft Drops Explosive On Asteroid To Make Crater

William Robinson writes: The Hayabusa2 Japanese spacecraft on Friday dropped an explosive on the Ryugu asteroid (named after an undersea palace in a Japanese folktale) to make a crater on its surface. The spacecraft safely evacuated and remained intact after dropping a 'small carry-on impactor' made of copper onto the asteroid. The Japan Aerospace Exploration Agency, or JAXA, said that they plan to send Hayabusa2 back to the site later, when the dust and debris settle, for observations from above and to collect samples from underground that have not been exposed to the sun or space rays. If successful, it would be the first time a spacecraft has taken such materials. In a 2005 'Deep Impact' mission to a comet, NASA observed fragments after blasting the surface but did not collect them.

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