Science
How small particles could reshape Bennu and other asteroids – Phys.org
In January 2019, NASA’s OSIRIS-REx spacecraft was orbiting asteroid Bennu when the spacecraft’s cameras caught something unexpected: Thousands of tiny bits of material, some just the size of marbles, began to bounce off the surface of the asteroid—like a game…
In January 2019, NASA’s OSIRIS-REx spacecraft was orbiting asteroid Bennu when the spacecraft’s cameras caught something unexpected: Thousands of tiny bits of material, some just the size of marbles, began to bounce off the surface of the asteroidlike a game of ping-pong in space. Since then, many such particle ejection events have been observed at Bennu’s surface.
OSIRIS-REx is an unprecedented effort to investigate what makes up asteroids like Bennu and how they move through space. But, as th…
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