In the 1950s, the US began test-flying a new spy plane, the Lockheed U-2. A Sky HISTORY series explores how this led to UFO ...

This is one of the most famous UFO sightings and alien abduction cases in history. Betty and Barney Hill were driving on a rural New Hampshire road one night when a bright light seemed to start ...

Stacker compiled a ranking of cities with the most UFO sightings in New Jersey using data from the National UFO Reporting ...

During these military exercises in 1952, various UFO sightings were recorded... but what did those at sea really see?

Here's the breakdown on Nevada's history with UFOs, and what we've been spotting in the sky lately. The Nevada State Journal reported a UFO sighting in July 1947, including a firsthand account ...

The history of UFO sightings in the United States can’t be told without the Pacific Northwest. Pilot Kenneth Arnold reported seeing nine unidentified flying objects whizzing past Mount Rainier ...

UAP and UFO sightings in the U.S. are particularly concentrated in the West, partially because of the abundance of dark sky locations, where it's easier to spot objects with less light pollution.