The Perseverance rover landed in the Jezero crater in 2021 and has already found some clues to the planet's past.
“What’s really interesting is that materials like these are extremely soluble. If they get into contact with any liquid water, they will basically dissolve,” Scheller explains. “So the last stage that the rock was in contact with liquid water was a last gasp of water on Mars.”To get an idea of when this last gasp of Water on Mars occurred, scientists will have to examine samples in the lab.
Martian rock samples are due to arrive on EarthPerseverance is exploring the Jezero Crater because it is believed to have the best chance for providing solid samples. About 3.5 billion years ago, the Jezero Crater was home to an ancient delta, or a fan-shaped area once at the convergence of a Martian river and a lake. Perseverance is looking at the delta’s sedimentary rocks, which formed when particles of various sizes settled in the once-watery river.
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