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 ...

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 ...

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 ...

WASHINGTON − The Pentagon released "never-before-seen" files on unidentified flying objects, and armchair investigators are furiously combing through them for evidence of "smoking gun" information ...

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.

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

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

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 ...