NASA Mars Rover Finds 3 Billion Year Old Organic Matter on Mars

NASA finds yet more evidence that the Red Planet might once have supported life.

PHOTOS: How Does New Sand Form on Mars?

Sand is eventually reduced to dust through wind erosion, so scientists have been searching for new sources that regenerate the sand dunes on Mars, given its lack of significant water and thin atmosphere. A new laboratory study shows small amounts of ice subjected to Martian summer temperatures and atmospheric pressure begin to boil and evaporate, levitating sand and transporting above the sediment; this type of erosion could explain the generation of new sand on the planet.

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