Add Yahoo as a preferred source to see more of our stories on Google. Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations ...

New global rule: Astronomers must not publicly announce or respond to alien signals until verified and cleared through UN channels. Why the change: Protocols now address risks from social media, AI ...

Hawking's dark theory: The 'dark forest' hypothesis warns that intelligent life may avoid contact to protect itself from perceived threats. New detection methods: Scientists propose using narrowband ...

In the endless search for technosignatures—signs from some technologically advanced intelligent alien civilization—we've done everything from monitoring radio arrays to hypothesizing about whether ...

More than 1,000 scientists have quietly updated the world's post‑detection protocols for alien contact, doubling down on the rule that 'no reply should be sent' without global agreement.

Scientists have rewritten global 'first contact' protocols for how to confirm and announce the discovery of alien intelligence, stressing verification and transparency in an age of deepfakes and ...