Interstellar invader comet 3I/ATLAS formed in a world much colder than the solar system "Each interstellar comet brings a little bit of its history, its fossils, from elsewhere." Astrobitica April 23, 2026 (Last updated: April 23, 2026) 1 minute read “Each interstellar comet brings a little bit of its history, its fossils, from elsewhere.” About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Mysterious gas clouds near Milky Way’s black hole now have a likely sourceNext: Did NASA’s Curiosity rover find signs of ancient life on Mars? An astrobiologist explains how we determine ‘life’