The red color of Mars might have an earlier, wetter origin
SMRTR summary
Mars' red color likely comes from ferrihydrite, an iron oxide containing water, rather than dry hematite as previously thought. This suggests Mars "rusted" earlier when liquid water was more prevalent on its surface, potentially impacting theories about the planet's habitability and environmental history.
SMRTR provides this summary for quick context. The original article belongs to The Register.
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