Kenneth Arnold UFO Sighting

Record	OBS-0345
Category	Extraterrestrial/UFOs
Status	UNPROVEN
Summary	On June 24, 1947, private pilot Kenneth Arnold reported seeing nine shiny, unidentified objects flying in formation near Mount Rainier, Washington, at speeds he estimated to be at least 1,200 mph. The sighting received widespread media coverage and is credited with coining the term 'flying saucer' and initiating the modern era of UFO sightings.
Origin	The sighting occurred on June 24, 1947, near Mount Rainier, Washington, USA, and was first reported in the East Oregonian newspaper the following day.
Claimed	Arnold saw nine shiny, circular objects about 100 feet across, flying in an echelon formation at speeds exceeding 1,200 mph. The objects moved in a manner described as 'like the tail of a Chinese kite,' flipping and banking periodically. The sighting was the first post-World War II UFO sighting in the US to gain nationwide attention, leading to the term 'flying saucer.'
Evidence / consensus	The exact nature of what Arnold saw remains unknown. Skeptics suggest possible misidentifications such as birds, reflections, mirages, or secret military aircraft, while some ufologists argue it may have been extraterrestrial. No definitive explanation has been established.

> OBSERVER NOTE:
A classic case that launched the modern UFO era. The evidence is anecdotal, and no physical trace or corroborating radar data exists. The term 'flying saucer' was a media invention, not Arnold's original description.

Sources

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.