Early Mars Environment

University of Arkansas researcher studying the thermodynamics of the oldest present-day clays on Mars found a surprising result in his calculations. Although evidence suggests that liquid water once flowed on the planet's surface, the most common greenhouse gas that could have warmed the atmosphere enough for liquid water to exist appears to have been scarce.

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<p><a href="http://www.physorg.com/news64500033.html">Early Mars Environment</a></p> <p> University of Arkansas researcher studying the thermodynamics of the oldest present-day clays on Mars found a surprising result in his calculations. Although evidence suggests that liquid water once flowed on the planet's surface, the most common greenhouse gas that could have warmed the atmosphere enough for liquid water to exist appears to have been scarce. <br></p>