Space
Water found in lunar impact probably came from comets
The discovery of volatiles in lunar material ejected by NASA's LCROSS mission suggests comets delivered much of the water at the impact site
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The discovery of volatiles in lunar material ejected by NASA's LCROSS mission suggests comets delivered much of the water at the impact site
Weeks before NASA's LCROSS mission hit the moon on Friday, some scientists predicted the impact might not be visible, and others questioned the mission's logic