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  "path": "/space/mars/a-giant-shadow-has-been-creeping-across-mars-for-50-years-and-scientists-arent-sure-why",
  "publishedAt": "2026-04-20T16:23:46.000Z",
  "site": "https://www.livescience.com",
  "tags": [
    "Mars",
    "Space",
    "Astronomy",
    "Planets"
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  "textContent": "A dark patch in Mars' Utopia Planitia region has grown significantly since it was first photographed in 1976. Scientists have a loose understanding of what it is, but they can't properly explain its gradual growth.",
  "title": "A giant 'shadow' has been creeping across Mars for 50 years — and scientists aren't sure why"
}