While ambitious plans to return Red Planet samples to Earth are in development, some scientists argue that we should instead find ways to analyze Mars samples on the planet itself.
While ambitious plans to return Red Planet samples to Earth are in development, some scientists argue that we should instead find ways to analyze Mars samples on the planet itself.
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The red planet may have once been home to an abundance of microbes. New studies suggest it's possible that some hardy microbes managed to survive underground in a frozen state.