Tuesday, July 28, 2009

Comets, not asteroids, to blame for moon's scarred face

A new study suggests comets gouged out the vast majority of craters on the moon (Image: NASA)Greenland rocks suggest dirty snowballs pummeled the young moon and Earth, soaking our planet with life-nurturing oceans.

Comets, not asteroids, to blame for moon's scarred face

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