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.

Confirmation of alien life would answer one enormous question and immediately create dozens more. Humanity’s reaction would ...

The International Academy of Astronautics (IAA) has ratified protocols advising what an astronomer should do if they discover evidence for extraterrestrial intelligence in our modern global world of ...

SETI is entering an AI-assisted era in which more kinds of technosignatures can be found faster. The safeguard is not a single higher threshold, but a public evidence ladder that separates anomaly, ...

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 ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Summary: Researchers at the University of Colorado Boulder have created potential biosignatures of alien life in a lab without the presence of living organisms, challenging current methods of ...

What new methods can be developed to help detect signs of life beyond Earth, also called biosignatures? This is what a recent study published in Nature Communications hopes to address as a team of ...

Here’s what you’ll learn when you read this story: Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home.