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

Why are we allowing unidentified objects to operate with impunity in our skies?” one expert testified Tuesday.

According to popular media, the search for alien life involves advanced technology, space exploration and sometimes even government conspiracies and secret programs. But according to University of ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...

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

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...