Pilot Kenneth Arnold reported seeing nine unidentified flying objects whizzing past Mount Rainier at high speeds from his plane in June 1947, and the terms flying saucer and flying disc were born.

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 ...

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

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

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 ...

Arizona physician Dr. Lynne Kitei was one of many to witness the famed “ Phoenix Lights ” incident on March 13, 1997. In the years since, Kitei has spent her time making a scientific case that what ...