Science ❯ Astronomy ❯ Astrobiology ❯ Extraterrestrial Life

Technosignatures

Interstellar Comet 3I/ATLAS Shows Ancient, Cold Origin in JWST and Ground Spectra

New isotopic measurements point to formation in a metal-poor near-30 kelvin environment, suggesting the comet may date from 10–12 billion years ago.

SETI Finds No Radio Signs From Interstellar Visitor 3I/ATLAS

SETI Radio Search Finds No Alien Technology on Interstellar Comet 3I/ATLAS

No Alien Signals Detected From Interstellar Visitor 3I/ATLAS in Green Bank Scan

SwRI Says Interstellar Comet Flybys Are Achievable as 3I/ATLAS Defies Expectations

Earth’s Radar Leakage Could Broadcast Its Location to Aliens 200 Light-Years Away