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Cool new on-the-ground picture of Mars


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Looks like the semi-desert of UT, CO, AZ, NM. "Unseen life" indeed. What is the surface temperature there?

Roughly, a balmy -30 degrees Celsius, though maybe a bit warmer (~0 Celsius) if the Spirit rover's data is any indication.

If there's any life there, it either lives deep in a crater where pressure is higher, or else has evolved to cope with water going straight from ice to a gas without passing through the liquid phase. Water on Mars acts like dry ice on Earth.

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