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

This video explores obscure answers to the Fermi Paradox, asking why the universe seems silent if alien civilizations should ...

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

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands ...

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 ...

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

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

"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

Whenever a director goes back to change an earlier movie, as James Cameron is thinking about doing with his 1986 classic ...

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

Area 51 is back in the spotlight after a swarm of earthquakes near the Nevada military base. But the real story of Area 51 is ...