The Curiosity rover is unveiling the persistence of habitable environments more than three-billion years ago at Gale crater, Mars. New analyses of Gale’s ancient sediments show that chemical processing of organic material occurred on a liquid-water rich and freezing early Mars.
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Fairén, A.G. Organic chemistry on a cool and wet young Mars. Nat Astron 4, 446–447 (2020). https://doi.org/10.1038/s41550-020-1098-z
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DOI: https://doi.org/10.1038/s41550-020-1098-z