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An Ancient Lake in Gale Crater, Mars

This illustration represents the possible extent of an ancient lake inside Gale Crater on Mars. Examination of mudstone confirmed the exist of the lake which formed billions of years ago. 
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This illustration represents the possible extent of an ancient lake inside Gale Crater on Mars. Examination of mudstone confirmed the exist of the lake which formed billions of years ago. In fact, as climate conditions changed on the planet, multiple lakes of different sizes appeared and disappeared in the area.

Read more here. 

Image credit: NASA/JPL-Caltech/MSSS


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