NASA’s Perseverance rover has captured an image of a never-before-seen Martian rock formation that scientists believe could ...

Scientists using NASA’s Curiosity rover have discovered siderite—an iron carbonate—in the sulfate-rich rocks of Gale Crater, ...

NASA's Perseverance rover has spotted an oddball rock in an ancient river channel on Mars. Deputy project scientist Katie ...

NASA's Curiosity rover landed on Mars on Aug. 5, 2012, and has travelled more than 34 kilometres on the Martian surface. The discovery of carbonate suggests that the atmosphere contained enough carbon ...

Tutolo led a new study of rock samples collected by the Curiosity rover that might have answered this question. The mystery ...