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    "story_id": "mp-2026-07-20-018",
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    "headline": "Viking's Mars Legacy Gets a Fiftieth-Year Audit",
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    "dek": "NASA Ames is convening a three-hour symposium linking the 1976 landers to modern astrobiology.",
    "summary": "NASA Ames is convening a three-hour symposium linking the 1976 landers to modern astrobiology.",
    "body_text": "NASA's July 20 program revisits the Viking missions' landing and life-detection experiments, newly recovered historical film, and the questions that still guide Mars science. The anniversary event is institutional history and scientific discussion, not a new finding from Mars.",
    "why_it_matters": "NASA Ames is convening a three-hour symposium linking the 1976 landers to modern astrobiology.",
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      "The anniversary event is institutional history and scientific discussion, not a new finding from Mars."
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        "qualification": "The anniversary event is institutional history and scientific discussion, not a new finding from Mars."
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    {
      "source_id": "source-2026-07-20-020",
      "title": "NASA Ames: Viking 50th anniversary symposium",
      "publisher": "NASA Ames",
      "url": "https://www.nasa.gov/ames/science/viking-50th-anniversary/",
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    "title": "Viking's Mars Legacy Gets a Fiftieth-Year Audit",
    "publisher": "The Machine Press",
    "published_at": "2026-07-20T09:00:00.000-04:00",
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