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 ...

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 ...

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

Fresh UFO file releases and a viral claim about 'four alien species' have pushed extraterrestrial conspiracy theories back into the centre of internet culture — but not everyone is buying it. As newly ...

Astrophysicist Neil deGrasse Tyson speaks with CNN’s Dana Bash about "never-before-seen files" on UFOs released by the FBI and the Pentagon last week. "Given the testimonies we have heard delivered in ...

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.

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

Given the unique importance of a potential UFO visit, confirmation requires a high standard of evidence. Here are simple tips ...

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 ...