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United States / 1947 / UNRESOLVED

Kenneth Arnold sighting

Pilot Kenneth Arnold reported seeing fast crescent-like objects near Mount Rainier, helping popularize the phrase flying saucer.

Kenneth Arnold sighting source-page visual material localized from Wikipedia overview
Image or video-frame material extracted from the cited Wikipedia overview source page for Kenneth Arnold sighting. It is localized for archive context; object identity and evidentiary weight still depend on the case notes and cited source.
CredibilityB
StatusUNRESOLVED
Evidence types2
Official sources0
Last reviewed2026
Archive assessment

This case remains unresolved in the public record, with credibility grade B.

Documentation
Limited documentation
Primary location
Mount Rainier, Washington
Source base
2 linked records
Research use
Comparison case

Case dossier

Kenneth Arnold sighting is a notable UFO/UAP report from Mount Rainier, Washington. The case is tracked as part of the launch archive because it is searchable, source-linked, and useful for comparison across countries, eras, evidence types, and explanations.

Timeline

  • Kenneth Arnold sighting is reported in Mount Rainier, Washington.
  • The case enters public UFO/UAP discussion through reports, archives, or later summaries.
  • The case is indexed with sources, evidence notes, and skeptical context.

Evidence matrix

Reported evidencepilot witness
Reported evidencepress reports

Evidence assessment

Reported evidence includes pilot witness, press reports.

pilot witnesspress reports

Official context

The report became part of early U.S. military and press attention to flying disc reports.

Skeptical notes

Distance, speed estimation, aircraft, mirage, and press amplification are common skeptical issues.

Sources