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  "path": "/research-spotlights/carbon-rich-rocks-may-have-cooled-the-ancient-martian-atmosphere",
  "publishedAt": "2026-05-28T13:12:23.000Z",
  "site": "https://eos.org",
  "tags": [
    "Research Spotlights",
    "carbon",
    "carbonates",
    "geochemistry",
    "life as we know it",
    "Mars",
    "olivine",
    "planets",
    "Space & Planets",
    "NASA/JPL-Caltech",
    "SuperCam mosaics",
    "NASA/JPL-Caltech/LANL/CNES/CNRS/IRAP"
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  "textContent": "The Perseverance rover photographed the Margin Unit (Mars 2020 mission, sols 1005–1006) in the Jezero Crater. The inset images show spectroscopic mineral data from the rover’s SuperCam instrument suite. Credit: Navcam image: NASA/JPL-Caltech; SuperCam mosaics: NASA/JPL-Caltech/LANL/CNES/CNRS/IRAP",
  "title": "Carbon-Rich Rocks May Have Cooled the Ancient Martian Atmosphere"
}