Kenneth Arnold Sighting

CE-1MILITARY
WITNESSES
1
SHAPE
disc
COORDINATES
46.8523, -121.7603

The Air Force attributed the sighting to a mirage, and later analysts proposed birds or meteors; Arnold rejected these explanations. SOURCE →

INCIDENT REPORT

origin-casepilot-witnessflying-saucerscold-warproject-blue-bookwashington-state

RELATED CASES (6)

1952•International8/10

Operation Mainbrace UFO Sightings

During NATO's first major maritime exercise, US, UK, Danish, and other allied crews logged multiple radar+visual UFO sightings across the North Sea - one of the earliest multinational military UAP clusters.

DISPUTEDmilitarymass-sightingradar
1952•United States9/10

Washington DC UFO Incident

UFOs tracked on radar over the nation's capital on two consecutive weekends, triggering jet scrambles and the largest Pentagon press conference since WWII.

DISPUTEDCE1militarygovernmentradar
1948•United States8/10

Mantell Incident

Captain Thomas Mantell died pursuing a large metallic UFO over Kentucky, becoming the first pilot death attributed to a UFO chase.

EXPLAINEDCE1military
1947•United States8/10

Roswell Incident

The US military initially announced recovery of a 'flying disc' near Roswell, NM before retracting the statement, creating the most famous UFO controversy in history.

DISPUTEDCE2militarygovernmenttrace-evidence
1947•United States7/10

United Airlines Flight 105 Sighting

Just ten days after Kenneth Arnold's sighting, airline pilots on United Flight 105 observed multiple disc-shaped objects over Idaho, marking the first professional pilot UFO report of the modern era.

UNEXPLAINEDCE1
1947•United States8/10

1947 Flying Disc Wave

Over 800 UFO sightings in just two weeks during the summer of 1947 created a nationwide phenomenon that launched government investigations and permanently changed American culture.

DISPUTEDmass-sightinggovernment