Most Source-Backed Cases

A North American hairy humanoid tradition built from Indigenous accounts, modern sightings, footprints, film, and contested biological claims.

Project Blue Book is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

On March 13, 1997, thousands of Arizona residents reported unusual lights crossing the night sky. The case is best understood as two overlapping episodes: an earlier wave of witnesses describing a large silent V-shaped formation moving across the state, and a later widely filmed row of bright lights near Phoenix that officials and skeptics associate with military flares over the Barry Goldwater Range.

A 2010 Chinese airport disruption attributed to an unidentified aerial object, later surrounded by disputed photos and explanations.

A Boeing 777 disappeared on 8 March 2014 after deviating from its route from Kuala Lumpur to Beijing.

A strong narrowband radio signal detected by Ohio State University's Big Ear radio telescope in 1977 and never confirmed again.

Tabby's Star is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

Tunguska Event is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

The Nimitz Tic Tac UFO case centers on U.S. Navy encounters and released infrared footage later acknowledged through official Department of Defense and AARO materials.

Ariel School UFO refers to the 1994 Ruwa, Zimbabwe schoolyard sighting reported by dozens of children and later covered by journalists, documentary researchers, and reference archives.

A heavy metal sphere found by the Betz family in Florida in 1974 became a long-running UFO-adjacent mystery after reported odd movements, Navy inspection, X-ray claims, and later industrial-object explanations.

Advanced Aerospace Threat Identification Program is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

Yeti is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

Stargate Project is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

Marfa Lights is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

Loch Ness Monster is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

The Roswell Incident began with 1947 debris recovery reports and later became a central UFO case through official explanations, archival material, and decades of media reinterpretation.

PURSUE UAP Records is tracked as a source cluster with 3 independent source domains and 2 extracted evidence items.

Fast Radio Burst 121102 is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.

DB Cooper is being reviewed for source density, chronology, media provenance, and competing explanations before full publication.