Scientists have discovered “alien-like” water inside a 400-million-year-old plant, revealing unusual chemistry that could ...

Aliens did not visit Earth in the distant past. They didn't build the pyramids or rule ancient Greece from Mount Olympus or teach Mesoamericans how to plant corn. How do I know? Because they did ...

Theoretically, it’s impossible for us to perceive a 4D creature. That is, unless it broke into our three-dimensional reality.

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 ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” who look suspiciously like us in rubber suits. The scientists who actually ...

Alien invasions are terrifying to think about, but cool to watch on TV. These are the 10 best shows you can watch about that unlikely occurrence, ranked.

The question of whether aliens exist is not a new one. In science fiction films and books, people have wondered if we’re the only life in this universe and what that can imply for universes beyond ...

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...