Bennu Asteroid Uses Boulders as 'Body Armour' Against Small Meteoroids, Say Researchers

Scientists think that the boulders on the surface of Asteroid Bennu might be acting as a shield against meteoroids. When a meteoroid collides with Bennu, which is a rubber-pile asteroid formed from a much bigger asteroid, it ends up fracturing, chipping, or breaking apart the boulders. Impactors also create smaller craters on Bennu due to the boulders than they would...

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