NASA Curiosity rover discovers evidence of ancient lakes on Mars


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NASA Curiosity rover discovers evidence of ancient lakes on Mars

The NASA Curiosity rover during the study of the Gale Crater, an extensive dry ancient bed of the lake with a hill in the center, found sediment containing sulfate salts in its soil. The presence of such salts indicates that once there were salt lakes.

Sulfate salts were found in sedimentary rocks that formed from 3.3 to 3.7 billion years ago. Curiosity analyzed other, more ancient rocks on Mars and did not find these salts in them.

Researchers believe that sulfate salts are evidence of the evaporation of the crater lake in the arid environment of the Red Planet, and they also believe that later-formed precipitation may shed more light on how the drying process of the Martian surface took place.

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