From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national security risks ...

In the catalogue of strange worlds beyond our solar system, hot Jupiters occupy a special category of the bizarre. These are gas giants the size of Jupiter or larger that orbit their host stars in a ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

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

A cinematic AI short film where an unexpected first contact celebrates soccer as the universal language of connection, ...

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

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

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

Alien: Isolation 2’s first reveal trailer is here, revealed at last night’s Summer Game Fest, and it confirms that this sequel will bring you down to.. well, not Earth exactly, but you’ll be roaming ...