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  "path": "/story/387868/interstellar-comet-came-from-a-cold-alien-world.html",
  "publishedAt": "2026-04-23T06:30:00.000Z",
  "site": "https://www.newser.com",
  "textContent": "The third confirmed interstellar body to visit our solar system is being revealed as a time capsule from a very different part of the Milky Way. In a new study, astronomers report comet 3I/ATLAS , first spotted passing through our neighborhood last July, carries water with a deuterium-to-hydrogen ratio up to...",
  "title": "Interstellar Comet Came From a Cold, Alien World"
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