A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

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 ...

Hold onto your tinfoil hats ...

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.

Scientists have rewritten global 'first contact' protocols for how to confirm and announce the discovery of alien ...

New claims that the United States has recovered remains of four separate species of alien life are sending shockwaves throughout the UFO disclosure movement, further drumming up conversations ...

Trump wrote no caption to shed light on the meaning of the image, triggering speculation online.

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 ...

Emily Blunt, Colman Domingo, and Josh O'Connor share how their perspectives on extra-terrestrials and unidentified anomalous phenomena (UAPs) have changed since working on "Disclosure Day." ...

Another batch of “UFO Files” have been dropped by the Pentagon, featuring previously classified documents, audio and footage of strange objects in the sky. The new release comes two weeks after the ...