Add Yahoo as a preferred source to see more of our stories on Google. Using an array of powerful radio telescopes high in the desert mountains of northern Chile, astronomers have confirmed the first ...

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 ...

The “post-detection protocols” for announcing the discovery and existence of alien life have just had their first major update in 16 years, though the all-important "no reply" rule remains in place.

New detection method: UC Riverside scientists created a statistical tool that identifies life by molecular diversity patterns instead of specific molecules. Why it matters: The approach works on ...

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 ...

When people imagine first contact with aliens, they often picture giant ships in the sky or wise beings sending peaceful messages. A new scientific idea suggests something very different. According to ...