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Mars Had Liquid Water in Recent Past, Rover Finds 
National Geographic | Thu, Dec 3
Even while snared in a sand trap, NASA's Mars rover Spirit has hit "wet" pay dirt: evidence of relatively recent groundwater activity on the red planet. ...
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Mars rover on its last wheels
Scientific American NASA's Spirit rover, part of the Mars Exploration Rover (MER) Mission, is currently spinning its wheels on Mars in an area scientists have ... Spirit rover budges forward, but not by muchScientific American all 2 news articles »
Mon, Dec 7 | from Student Life
