These shocking UFOs have been spotted over some of the biggest cities in the U.S. See more in this compilation from The Proof is Out There.

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

A declassified 1948 US military memo has fuelled renewed debate after researchers claimed it suggests officials believed they ...

If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth. Eerie UFO sightings we can’t 100% explain Everyone has an opinion when it comes to ...

The Pentagon on Friday released a new group of documents and videos related to UFOs, or UAPs, with 72 more documents, images ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

The Pentagon released its fourth batch of UFO files Friday following President Trump’s declassification order, including ...

NASA's relationship with UFOs has evolved alongside broader changes in public and government interest in unexplained ...

National attention on UFOs has shifted in recent years, especially after the US government in the past decade has released ...

Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military ...

Cardinal Robert W. McElroy explained in a recent interview that he removed a prominent exorcist from his archdiocese because ...