A new analysis of decades-old data from NASA's Spirit rover has uncovered overlooked traces of crystalline hematite and altered magnetite, adding to growing evidence that liquid water once played a major role in shaping the Red Planet.
A new analysis of decades-old data from NASA's Spirit rover has uncovered overlooked traces of crystalline hematite and altered magnetite, adding to growing evidence that liquid water once played a major role in shaping the Red Planet.
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