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  "publishedAt": "2026-06-23T05:33:25.000Z",
  "site": "https://upstract.com",
  "textContent": "An that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, astronomers said Monday. The comet is just the third visitor from beyond our solar system that humanity has ever…",
  "title": "Interstellar comet that zoomed past Earth could be oldest and coldest object ever seen in solar system, astronomers say"
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