Long ago, something bad happened to Mars, transforming a warm and hospitable world into the cold, seemingly lifeless desert we view today. Many scientists believe the Red Planet lost most of its atmospher. A new NASA mission named MAVEN is specifically designed to answer some questions about the series of events.
http://science.nasa.gov/headlines/y2009/06nov_maven.htm?list1285438
Saturday, November 7, 2009
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