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Ferrihydrite’s Role in Mars’ Red Hue and Earth’s Iron Cycle

Why in the News? A recent study suggests that ferrihydrite, an iron-containing nanomineral, could be responsible for Mars’ red color, challenging previous assumptions that hematite was the primary cause. This finding also has implications for Mars’ geochemical history and potential for life. Role of Ferrihydrite in Mars’ Coloration: Recent studies suggest ferrihydrite, a nanomineral containing …

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