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  "path": "/the-coldest-stars-in-the-galaxy-might-actually-be-alien-megastructures/",
  "publishedAt": "2026-05-22T18:51:56.000Z",
  "site": "https://scitechdaily.com",
  "tags": [
    "Space",
    "Astrobiology",
    "Astronomy",
    "Astrophysics",
    "Spectroscopy",
    "Stars"
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  "textContent": "Astronomers may be able to identify possible Dyson swarms by looking for unusually cold, clean infrared signals around long-lived stars. Since physicist Freeman Dyson introduced the idea in 1960, the “Dyson sphere” has become one of the most sought-after possible technosignatures in the search for advanced alien civilizations. The basic idea is that a civilization [...]",
  "title": "The Coldest “Stars” in the Galaxy Might Actually Be Alien Megastructures"
}