UFO Library

100 essential books — foundational, skeptical, abduction, and military UAP shelves.

skeptic1968

Scientific Study of Unidentified Flying Objects (The Condon Report)

Edward U. Condon (dir.)

The University of Colorado's Air Force-funded study reviewed hundreds of Project Blue Book, NICAP, and APRO case files plus newly investigated sightings, concluding UFO study was unlikely to yield major scientific discoveries — a verdict that led directly to Blue Book's 1969 closure, even though roughly a third of the report's own case studies were left formally unexplained.

skeptic1995

The Roswell Report: Fact vs. Fiction in the New Mexico Desert

United States Air Force

Prompted by a congressional records-search request, the Air Force's nearly 1,000-page report concluded the 1947 Roswell debris came from Project Mogul, a classified high-altitude balloon program built to detect Soviet nuclear tests, matching witness descriptions of foil, balsa sticks, and symbol-printed tape.

skeptic1997

The Roswell Report: Case Closed

United States Air Force

A follow-up Air Force report addressed the alien-bodies strand of the Roswell legend, attributing witness memories to a conflation of decades of separate events — most prominently 1950s high-altitude tests using anthropomorphic crash-test dummies at the same general region.

agnostic2021

Preliminary Assessment: Unidentified Aerial Phenomena

Office of the Director of National Intelligence

Mandated by Congress after the 2017 Navy video disclosures, this unclassified assessment reviewed 144 UAP reports from 2004-2021, finding the government lacked sufficient data to explain the vast majority and explicitly stating it could not rule out unknown, potentially foreign-adversary or genuinely anomalous technologies.

skeptic2024

Report on the Historical Record of U.S. Government Involvement with Unidentified Anomalous Phenomena (Volume I)

All-domain Anomaly Resolution Office (AARO)

The Pentagon's dedicated UAP office reviewed decades of crash-retrieval and reverse-engineering claims — including many raised by David Grusch's 2023 congressional testimony — and found no verifiable evidence that the U.S. government has ever possessed extraterrestrial craft or biological material, while acknowledging a persistent unexplained sighting residue.