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  "path": "/article/nasa-perseverance-mars-river-underground-radar",
  "publishedAt": "2026-03-21T09:00:00.000Z",
  "site": "https://mashable.com",
  "textContent": "NASA's Perseverance rover has discovered new evidence that Mars had a stable, flowing river at Jezero Crater about 4 billion years ago.",
  "title": "Mars evidence shows ancient river likely larger and faster than thought"
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