What Happened to Early Mars' Atmosphere
Pasadena CA (JPL) Sep 03, 2015 - Scientists may be closer to solving the mystery of how Mars changed from a world with surface water billions of years ago to the arid Red Planet of today. A new analysis of the largest known deposit of carbonate minerals on Mars suggests that the original Martian atmosphere may have already lost most of its carbon dioxide by the era of valley network formation. "The biggest carbonate depos ... more
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