Mars Rovers Sharpen Questions About Livable Conditions

Like salt used as a preservative, high concentrations of dissolved minerals in the wet, early-Mars environment known from discoveries by NASA's Opportunity rover may have thwarted any microbes from developing or surviving.

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<p><a href="http://www.physorg.com/news122305637.html">Mars Rovers Sharpen Questions About Livable Conditions</a></p> <p>Like salt used as a preservative, high concentrations of dissolved minerals in the wet, early-Mars environment known from discoveries by NASA's Opportunity rover may have thwarted any microbes from developing or surviving.</p>