Dark, Pitted, and Possibly Alien: The Skull Hill Rock That Has Scientists Stumped - SciTechDaily

1. Dark, Pitted, and Possibly Alien: The Skull Hill Rock That Has Scientists Stumped  SciTechDaily
2. NASA's Perseverance rover hits the Mars rock gold mine: 'It has been all we had hoped for and more'  Space
3. NASA’s Perseverance Mars Rover Studies Trove of Rocks on Crater Rim  NASA Jet Propulsion Laboratory (JPL) (.gov)
4. Study unveils volcanic history and clues to ancient life on Mars  Phys.org
5. This Weird Martian Rock Has Scientists Scratching Their Heads  The Daily Galaxy

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