Gullies on the dunes of Russell Crater on Mars. Credit: NASA/JPL/University of Arizona

by Nancy Atkinson on January 8, 2009

Gullies on the dunes of Russell Crater on Mars. Credit: NASA/JPL/University of Arizona


  • http://home.ca.inter.net/deepsky/ Rick Ellis

    For a planet that is only 4,220 miles in diameter, the diversity of Mars’ geologic features continues to astound.

    How tremendous it would be to stand in the shadow of Olympus Mons – - and just stare.

  • Angunnguaq

    Well, that’s good news. If there is ice, means there is water:)