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Ancient Mars may have icy clouds to thank for its liquid water

Artist's impression of NASA's Perseverance rover exploring Jezero Crater

High-altitude icy clouds may have allowed ancient Mars to host rivers and lakes by warming the planet via a greenhouse effect, according to the results of a new study. The theory could be tested by NASA’s Perseverance rover, which is currently actively exploring the surface of the Red Planet.

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Category: Space, Science

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