The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn more.

Neil deGrasse Tyson, who for years has laughed off and shot down questions about UAP and aliens, is ready to talk at length about the phenomenon - and wants to see some real proof after the latest wave of whistleblowers and "disclosure" files released by the Pentagon.

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 tangling with a variety of horrendous fiends, including ...