The origin of perennial water-ice at the South Pole of Mars

Thanks to data from ESA's Mars Express mission, combined with models of the Martian climate, scientists can now suggest how the orbit of Mars around the Sun affects the deposition of water ice at the Martian South Pole.

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<p><a href="http://www.physorg.com/news103541323.html">The origin of perennial water-ice at the South Pole of Mars</a></p> <p>Thanks to data from ESA's Mars Express mission, combined with models of the Martian climate, scientists can now suggest how the orbit of Mars around the Sun affects the deposition of water ice at the Martian South Pole.</p>