Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres - The presence of exposed ice on Ceres would be a surprise, because ice should be unstable on the dwarf planet’s airless surface, turning from a solid into a gas and drifting into space rather than sticking around.

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Submitted May 13, 2015 at 05:25AM by madam1 http://ift.tt/1K5e1F5