The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common ...

A recent theory proposed by a NASA scientist suggests that extraterrestrial civilizations may not possess the wildly advanced technology that many UFO enthusiasts expect. This perspective, which ...

Project Blue Beam, a conspiracy theory originating from Serge Monast's 1994 claims, suggests a government-led scheme to ...

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

The podcaster has frequently expressed an interest in the subject but said Thursday there's one aspect that "doesn't totally make sense." ...