Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

New SETI protocols outline how scientists should verify, share, and respond to potential evidence of alien intelligence in ...

For decades, the search for extraterrestrial intelligence has been defined more by silence than discovery, but that balance may be starting to shift. As new telescopes, algorithms, and theoretical ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...