Hopping space dust makes asteroids look rougher - Science Daily

When NASA's OSIRIS-REx spacecraft arrived at the asteroid Bennu, scientists discovered something surprising: The asteroid's surface wasn't smooth like many were expecting but was covered in large boulders. Now, a team of physicists think they know why.

Like corn kernels popping in a frying pan, tiny grains of dust may hop around on the surface of asteroids, according to a new study from physicists at the University of Colorado Boulder.That popcorn-… [+5108 chars]

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