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Sci Tech    H4'ed 3/20/20

Scientists fired a copper cannonball at an asteroid - here's what happened next

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Firing the cannonball enabled researchers to directly observe the formation of a crater in microgravity for the first time, answering how much the microgravity affects crater formation.

The crater growth process appears to be controlled by the surface gravity, not by the surface material strength. In fact, the diameter of the new crater on Ryugu is about 7 TIMES LARGER than if it had formed on sand under the Earth’s gravity.

“If we want to deflect an asteroid by an impact, we need a much better understanding of this process,”

“All this is super exciting.”

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At www.inverse.com
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Born in Long Island public school year in Sweden as exchange student, went to Harvard one year, Cooper Union in NYC as Art student. Have two children, one of whom is rock mogul, the other has three daughters, one of whom has two daughters, making me (more...)
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