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

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

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

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 ...

Alien civilisations may have just been given a 400,000-fold boost in their chances of finding humans, according to a new study of where Earth sends its strongest deep-space radio signals. The analysis ...

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 ...