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 ...

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 ...

New detection method: Researchers created a statistical test that identifies life by spotting distinctive patterns in molecular diversity and distribution. Applicable to missions: The method can be ...

Astronomers warn humanity’s first alien detection may shock and surprise. Signals may not be friendly greetings but extreme and unmistakable. New research suggests initial contact could come from ...

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 ...