NASA says it has found proof that water shaped the rocks on the left, in a photograph taken by the Mars rover Curiosity (left). For comparison, the agency released an image of rocks from the Earth (right). NASA hide caption

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Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It

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David Oh, wife Bryn and his children Braden, 13, Ashlyn, 10, and Devyn, 8, picnic in Santa Monica beach at about 1 a.m. David Oh hide caption

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Jet-Lagged: NASA Engineer And His Family Are Living On Mars Time

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