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Perseverance rover finds igneous rock altered by ancient water on Mars

NASA News reports that igneous rocks in Jezero Crater interacted with liquid water on at least three occasions.

The short version

  • NASA's Perseverance rover discovered igneous rocks in Jezero Crater that show signs of interacting with liquid water at least three separate times.[NASA News]
  • Scientists previously expected to find sedimentary rocks formed by an ancient crater lake, but instead identified volcanic or subsurface magma rock.[NASA News]
  • Researchers cannot determine the absolute ages of these fluid interactions, only their chronological sequence.[NASA News]

Key facts

  • Data gathered by the Perseverance rover showed that igneous rock in the Margin Unit interacted with water at least three separate times.[NASA News]
  • The findings were published in the journal Communications Earth & Environment.[NASA News]
  • Perseverance analyzed over 185 bedrock targets across the unit using its SuperCam instrument.[NASA News]

What remains uncertain

  • The research team can determine the chronological sequence of the water interactions, but cannot determine their absolute age.[NASA News]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.