NASA's Curiosity rover has found sediments containing sulfate salt in Gale Crater — a vast, dry ancient lake bed with a mountain at its center — which suggest it once held salty lakes
Since it landed on Mars in 2012 NASA's Curiosity rover has been exploring Gale Crater, a vast, dry ancient lake bed with a mountain at its center. Now, Curiosity has found sediments containing sulfate salt in the crater, which suggest it once held salty lakes. A range of salts have been found on Mars in different locations. Researchers interpret these as evidence of ancient brines.
"Understanding when and how the planet's climate started evolving is a piece of another puzzle: When and how long was Mars capable of supporting microbial life at the surface?"Curiosity rover makes new discoveries on MarsThe sulfate salts represent a different finding from Curiosity's evidence of freshwater lakes in the foundation of Mount Sharp back in 2015. These new salts were actually found in a section of rocks called"Sutton Island.
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