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National Aeronautics and Space Administration Mars 2020 Over the past two decades, missions flown by NASA’s Mars Exploration Program have shown us that Mars is a rocky, cold and dry planet underneath
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Document Date: 2015-06-10 12:26:45
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National Aeronautics and Space Administration Mars 2020 Over the past two decades, missions flown by NASA’s Mars Exploration Program have shown us that Mars is a rocky, cold and dry planet underneath