Friday, December 21, 2012

NASA Mars HiRise Image: Permanent Ice at South Pole

It stays cold enough to maintain permanent year-round ice near Mars' South Pole. 

The defrosting walls of flat-floored pits stand in stark contrast against the carbon dioxide ice. 

The smallest of the pits, at center, are stadium-size.

See more NASA Mars HiRise Images of Mar's North and South Poles.

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