Rover Curiosity sends back new evidence of once-wet Mars
by CNET News.com | September 27, 2012, 3:00pm PDT | Image 1 of 7
Thanks to the Curiosity rover, NASA has new evidence of an ancient flowing stream on Mars. Until now, scientists have had to make do hypothesizing about the channels left on the Martian surface. The finding site lies between the north rim of Gale Crater and the base of Mount Sharp, a mountain inside the crater. The new images sent back show the discovery of gravel that was once part of what NASA says was an ancient stream.
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