unidentified flying object
unusual apparent anomaly in the sky that is not readily identifiable
Chiles-Whitted UFO encounter
1948 UFO encounter
Roswell incident
1947 unspecified object crash near Corona, New Mexico, US
Foo fighter
term used by Allied aircraft pilots in WW2 to describe various UFOs or mysterious aerial phenomena
Gorman dogfight
1948 UFO sighting and aviation accident
Ghost rockets
rocket- or missile-shaped unidentified flying object sighted in Nordic countries 1946
Aurora, Texas, UFO incident
The Aurora, Texas, UFO incident happened, at the United States of America on the 17th day of April 1897.
Aztec, New Mexico UFO incident
American sighting of a UFO
Malmstrom UFO incident
alleged paranormal event
black triangle
class of UFOs, with certain common features which have reportedly been observed during the 20th and 21st centuries
Trans-en-Provence Case
UFO sighting
Berwyn Mountain UFO incident
the second most well known British "UFO crash"
Cash-Landrum incident
alleged unidentified flying object sighting
Val Johnson incident
alleged 1979 UFO encounter in the United States
Sperry UFO case
1950 sighting of an Unidentified Flying Object
Phoenix Lights
light phenomenon that occurred on March 13 1997 over Arizona and Nevada, United States
flying saucer
type of supposed alien spacecraft, or UFO
Nash-Fortenberry UFO sighting
1952 UFO incident occurring over the Chesapeake Bay
Voronezh UFO incident
1989 alleged sighting in the Soviet Union
Gulf Breeze UFO incident
1987 UFO sighting in Gulf Breeze, Florida