Dr. Hal Puthoff claims the U.S. has recovered remains of four separate species of alien life from UFOs, citing people involved in the recoveries.

Internet-famous UFO stories so wild they may just be true Alien and UFO sightings have been anomalies for decades. While the ...

A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Lawmakers called on the White House to grant immunity to whistleblowers who come forward with UFO information.

Astrophysicist Neil deGrasse Tyson has a blunt request for the government as the Pentagon rolls out the highly anticipated ...

Steven Spielberg’s latest UFO blockbuster is generating debate far beyond extraterrestrials and government secrets.

The cultural craze is seizing the big screen, the White House, the New York gallery scene.

Former CIA-funded researcher Hal Puthoff says trusted insiders told him four alien species are linked to recovered UFO craft, including 'Reptilians and Insectoids,' but offers no direct evidence.

According to intelligence reports, each alien species has a humanoid appearance with two arms and legs, Davis claimed.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

Steven Spielberg's new film “Disclosure Day” explores extraterrestrial life and its impact on religion. UFOs, now also called ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration by Alberto Mier/CNN When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO ...