A look at the idea of searching for signs of pollution beyond Earth.

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Using emerging radio techniques refined during and after the Second World War, the astronomers detected a powerful radio ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

This video explores the uncomfortable possibility that the biggest obstacle in finding alien life is not distance, but ...

“Mr. Chair, the truth is out there.” That’s what Rep. Nate Davidson, D-Cumberland and Dauphin said during a Tuesday Pa. House ...

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...