The “post-detection protocols” for announcing the discovery and existence of alien life have just had their first major ...

If and when SETI discovers alien life, a revised Declaration of Principles guarantees once the discovery has been verified, ...

Scientists updated first contact protocols for 2026, requiring multiple verification steps and UN consultation before ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

The IAA SETI Committee has updated rules for evaluating and revealing the detection of extraterrestrial intelligence.

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 ...

So far astronomers have discovered nearly 6,000 exoplanets—worlds that orbit stars other than our sun. If that number already feels ridiculously large, you’d better brace yourself: extrapolation of ...