Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists ...

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

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 question of whether humanity is alone in the universe has fascinated scientists for generations, but few have pursued an ...

A controversial Harvard University cosmologist who has suggested alien lifeforms could be sailing into the solar system disguised as meteors is leading the Trump administration’ ...

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

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

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

“Mr. Chair, the truth is out there.” That’s what Rep. Nate Davidson, D-Cumberland and Dauphin said during a Tuesday Pa. House ...