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.
If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth.
NASA's relationship with UFOs has evolved alongside broader changes in public and government interest in unexplained ...
From the Navy’s infamous Tic-Tac encounter to thousands of recent reports, believers say some of the strangest UFOs may be hiding underwater.
Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...
The incident, reportedly over a nuclear weapons assembly plant, was included in the Pentagon’s fourth tranche of UFO files.
National attention on UFOs has shifted in recent years, especially after the US government in the past decade has released ...
The latest batch of UFO files from the Pentagon includes artistic renderings by credible witnesses.
Pilot Kenneth Arnold took flight from Chehalis, Washington in his single-engine airplane, looking for a missing military ...
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