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  "publishedAt": "2026-03-19T15:21:40.000Z",
  "site": "https://upstract.com",
  "textContent": "Far away, alone in a crater on a planet inhabited only by robots, NASA's Perseverance rover explores a dry landscape that was once a river system billions of years ago. According to a new discovery, however, the Jezero Delta on Mars is not the sole remnant of abundant water that once flowed across…",
  "title": "Hidden Ancient River System Found Deep Under The Surface of Mars"
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