The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

The trip had all the makings of a boring car ride—until the couple saw mysterious lights approaching from the sky.

The first few billion years of Earth's history saw the rise of life, the atmosphere and the oceans. Still, that time is ...

Experts have been hopeful, but say the agency’s lunar aspirations are largely at the whims of two billionaires, Elon Musk and ...

New SETI protocols outline how scientists should verify, share, and respond to potential evidence of alien intelligence in ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Messoline, 61, is the manager of the UFO Watchtower, a scrappy roadside attraction that rises out of the southern Colorado ...

You sent them to that ship. I just checked the colony log. Directive dated 6/12/79, signed Burke, Carter J. You sent them out there and you didn’t even warn them. Why didn’t you warn them?” Unless you ...

Astrobiologists are raising concerns that humanity’s search for alien life may be limited by the very tools designed to find it.

NASA administrator Jared Isaacman says declassified UAP files show real unexplained phenomena but no alien bodies or crashed ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

The Pentagon released the second tranche of declassified UFO files after US President Donald Trump ordered Defense Secretary Pete Hegseth and other agency heads to release them.