{"id":"skytel2026ancient","URL":"https://skyandtelescope.org/astronomy-news/interstellar-comet-3i-atlas-is-ancient/","type":"webpage","title":"Interstellar Comet 3I/ATLAS Has Cold, Ancient Origins","author":[{"literal":"Sky & Telescope"}],"issued":{"date-parts":[[2026]]},"container-title":"Sky & Telescope","catalog-key":"SRC0DFPZ6F4HSB0"}