Study: Asteroids got craters from same event as the moon

03/27/2013 | Popular Science

The shower of space rocks that gave our moon its craters about 4 billion years ago -- known as the Late Heavy Bombardment -- also hit the giant asteroid Vesta, a discovery that scientists say opens up new opportunities for them to study this time period. The research by NASA's Lunar Science Institute helps support the theory that the lunar cataclysm occurred when Jupiter shifted slightly in its orbit, sending smaller space rocks out of their positions.

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