SETI Institute Looks for Signs of Technology in Interstellar Visitor 3I/ATLAS

SETI Institute Looks for Signs of Technology in Interstellar Visitor 3I/ATLAS Observations with the Allen Telescope Array set new limits on possible signals from extraterrestrial transmitters. PRESS RELEASE DATE June 3, 2026 CONTACT Rebecca McDonald... More

SETI Institute Looks for Signs of Technology in Interstellar Visitor 3I/ATLAS Observations with the Allen Telescope Array set new limits on possible signals from extraterrestrial transmitters. PRESS RELEASE DATE June 3, 2026 CONTACT Rebecca McDonald Director of Communications, SETI Institute rmcdonald@seti.org ONLINE Press Release/Image https://tinyurl.com/bdeukbjy The ATA at the Hat Creek Radio Observatory. Image Credit: Seth Shostak/SETI Institute. June 3, 2026, Mountain View, CA — Scientists at the SETI Institute searched for technological signals from 3I/ATLAS, the third interstellar object observed in our Solar System. Using the Allen Telescope Array (ATA) at the Hat Creek Radio Observatory in Northern California, the team scanned a wide range of radio frequencies for signs of extraterrestrial technology and found none, as expected based on other astronomical observations showing that the object exhibits natural comet-like composition and behavior. Discovered in July 2025, 3I/ATLA Less