Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

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

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

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

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

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

The question of whether humanity is alone in the universe has fascinated scientists for generations, but few have pursued an answer as publicly or as controversially as Harvard astrophysicist Avi Loeb ...

The Pentagon's latest declassified UAP files, including eyewitness videos and historical documents, have reignited interest ...