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  "path": "/astronomy/mars/strange-stacked-stones-spotted-on-mars-space-photo-of-the-day-for-may-21-2026",
  "publishedAt": "2026-05-21T14:00:00.000Z",
  "site": "https://www.space.com",
  "tags": [
    "Mars",
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  "textContent": "NASA's Perseverance Mars rover has stumbled across an unusual sight: a stack of rocks on the Martian surface.",
  "title": "Strange stacked stones spotted on Mars | Space photo of the day for May 21, 2026"
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