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Explore Mars Gullies, Martian Gullies and more!

from National Geographic News

Space Pictures This Week: Mars Gullies, Aurora Borealis, and Dragon Detaches

Mars - New Gully Deposit in a Crater in Terra Sirenum

Weepy Crater August 20, 2013 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies

from io9

10 Pictures Showing How We Finally Found Water on Mars

10 Pictures Showing How We Finally Found Water on Mars Image: Gullies showing evidence of water carving on Mars, 2007 / NASA/JPL/University of Arizona