NASA’s Mars Reconnaissance Orbiter photographed these intricate CO2 ice formations on the Martian South Polar residual cap. They are constantly sculpted by solar-induced sublimation. (Image credit: NASA/JPL-Caltech/Univ. of Arizona)

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Submitted January 25, 2019 at 06:26PM by SDSS-J1106-1939 http://bit.ly/2DAqovq