Nature, Published online: 30 July 2025; doi:10.1038/d41586-025-02284-5

Mars has had periods of potential habitability, seen in its geological record of surface water and shallow groundwater. Models that incorporate feedback between carbon sequestration, atmospheric pressure and temperature — backed by discoveries of carbonates by NASA’s Curiosity rover — suggest that this intermittent habitability could have arisen through self-regulating feedback loops on the planet’s surface.

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