The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

A Harvard University professor known for his polarizing theories about extraterrestrial life has been tapped by the White House to lead a scientific advisory council to study UFOs. Avi Loeb, who ...

Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

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

Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, we explore NASA's revolutionary TitanAir concept, a futuristic seaplane ...

An astrophysicist who searches for life in the Universe unpacks Steven Spielberg's UFO blockbuster Disclosure Day ...

A polarizing Harvard astronomer has been appointed to lead a White House panel studying UFOs. Avi Loeb is leading a new ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

The pilots dubbed the fireballs “foo fighters” but had no idea what they were. Plasma? Enemy tech? Aliens? We still haven’t ...

A man who claims to be a time traveler from the year 2118 has made a series of extraordinary predictions about the future, ...

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.