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  "publishedAt": "2026-04-25T06:07:44.000Z",
  "site": "https://upstract.com",
  "textContent": "A newly analyzed interstellar visitor has delivered one of the clearest chemical clues yet about how alien planetary systems form. Observations published in Nature Astronomy show that 3I/ATLAS contains an extraordinarily high concentration of deuterated water, pointing to an origin in a frigid…",
  "title": "Interstellar Comet 3I/ATLAS Reveals A Frozen Origin Far Colder Than Our Solar System"
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