A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

Vanity Fair reports from the Capitol Hill conference, where members of a sprawling community of national security experts and ...

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

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 ...

The White House launched a website teasing new information on extraterrestrials this week, but it actually delivers immigrant arrest data.

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 ...

From the Navy’s infamous Tic-Tac encounter to thousands of recent reports, believers say some of the strangest UFOs may be ...

A U.S. pastor claims he was taken to a secret UFO disclosure gathering in Tennessee ...

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

"This is a detective story that can be resolved with better data," Harvard astrophysicist Avi Loeb told Newsweek.

Jay Stratton's memoir, 'Out of the Shadows,' is being published Oct. 13 ...