How could we defend Earth against an alien Invasion? Do we even stand a chance? Could the United States, Russia and China ...

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

We've all grown up dreaming of aliens landing on the Earth or laser beaming across the sky; well, either way, it's sci-fi and ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

We may receive a commission on purchases made from links. Are we alone in the universe? It's a huge question with no easy answer. And, following on from that, if we aren't alone, what would beings ...

Universal Pictures just unwrapped this somber new trailer for Spielberg's "Disclosure Day" and it's an uncanny exploration of ...