The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

By Soncirey MitchellReader Staff What do aliens, Nazis and the lost city of Atlantis have in common? A great deal, ...

Giorgio A. Tsoukalos talks about the Alien Astronaut Theory & the new episodes of "Ancient Aliens" on The History Channel.

Britain's first astronaut thinks aliens exist and she says they could be already living among us, but we can't see them. Helen Sharman is a chemist who currently works at the Imperial College in ...

Kate Mara is stalked by creepy aliens while in lockdown at a remote safe house in The Astronaut, a new sci-fi thriller from writer-director Jess Varley. PEOPLE has an exclusive first look at the movie ...

Talk about an out of this world greeting! On Sunday, March 16, as SpaceX and NASA's Crew-10 astronauts arrived at the International Space Station ahead of Crew-9's return home, some friendly space ...