Curiosity rover finds traces of ancient lakes on Mars

December 9, 2014 2:34 PM

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NASA’s Curiosity rover has discovered remains of sediments from lakes along the foothills of Mount Sharp, a finding that yields clues to ancient Mars. Scientists believe that the sediment remains are from lakes that once filled the deep bowl, likely tens of millions of years ago. It wasn’t until much later that winds carved out the roughly three mile high peak that is visible today.

Such a finding is significant as it shows that past climates on Mars were likely much warmer and wetter in its first two billion years of life than was previously believed. Curiosity’s team suggests that this recent discovery points to a cycle with rain or snow to keep up such humid conditions. Ther...

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