Perseverance rover makes steep climb to reach unexplored Martian territory

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The Perseverance rover has begun a long climb up the steep rim of Jezero Crater, searching for some of the oldest rocks on Mars and exploring the potential of environments on the Red Planet that could once have supported life.

The robotic explorer landed in Jezero Crater 3 1⁄2 years ago and has since explored the site of an ancient lake and river delta and collected countless rock samples. But its latest scientific journey could rewrite the way astronomers understand ...