An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

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

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

This is the story of a mysterious finding in New Hampshire, pieced together from the incident summary sheet and official ...

Viral videos showing red beams before the Venezuela earthquake have sparked conspiracy theories. However, analyses reveal no ...

Marvel's "Star Wars" comic gave readers a tease referencing a long-standing fan theory regarding the Trandoshans and "Star ...

THE last-ditch search for the missing Malaysia Airlines jet will be extended for another year, more than a decade after it ...

The China National Space Administration's 'Reusable Experimental Spacecraft' has been spotted releasing an unidentified object into orbit above Earth.

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

Incursions reportedly have ranged from UAP detected over U.S. military bases to drone-like objects with flashing lights that ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?