The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may ...

Images of a pyramid-like shape on the surface of Mars are propelling theories that alien beings constructed the object, but one expert on the Red Planet has some disappointing news for the most ...

Movies like "Disclosure Day" and "Project Hail Mary" renew our fascination with extraterrestrials and the idea that humankind ...

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers have so far identified over 6,000 exoplanets beyond our solar system, only a ...

What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past?

Steven Spielberg reiterated his belief in the existence of life beyond Earth during a keynote interview at the SXSW Film & TV ...

A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the buil ...

Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot ...

Steven Spielberg revealed he's developing a western film and discussed his upcoming film 'Disclosure Day' — plus Obama's recent comments about aliens.

Add Yahoo as a preferred source to see more of our stories on Google. Collage of a telescope under a starry sky and a planet in space. Earthlings, brace yourselves: the galaxy may be emptier than your ...