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

In what alien theorists see as the first step towards ‘Disclosure Day’, the White House will release the first tranche of ‘alien files’ today, including accounts from US military pilots who have ...

The X-Files built a compelling mythology for the show's ever-expanding alien conspiracy. The sci-fi series features plenty of standalone monster-of-the-week episodes that see Agents Mulder and Scully ...

Astrophysicist Neil deGrasse Tyson speaks with CNN's Dana Bash about "never-before-seen files" on UFOs released by the FBI ...