Alien claims need sources, not just stories.

Barney and Betty Hill incident source discovered from Wikipedia references.

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.

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.

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.

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.

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.

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

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.

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