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Declassified UFO / UAP Document

FACTS ABOUT UNIDENTIFIED FLYING OBJECTS

🏛 Department of the Air Force 📄 Legislative Reference Service report
Project Blue BookUFOAir ForceU.S. CongressScientific Advisory Board1966

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AI-Generated Summary

TL;DR

This 1966 Library of Congress report summarizes the U.S. Air Force's Project Blue Book, detailing its history, investigation procedures, and official findings regarding UFOs. It concludes that UFOs pose no national security threat and that the vast majority of sightings are identifiable as known phenomena.

This report, prepared by the Legislative Reference Service of the Library of Congress on May 5, 1966, provides a comprehensive overview of the United States government's monitoring of Unidentified Flying Objects (UFOs). The document was compiled at the request of the Armed Services Committee of the U.S. House of Representatives following a surge in public interest and reported sightings in early 1966. It outlines the history of the Air Force's involvement in investigating UFOs, beginning with the establishment of Project Sign in 1948, followed by Project Grudge, and finally Project Blue Book, which remained the official designation at the time of the report. The study details the methodology used by the Air Force to collect, collate, and evaluate sighting reports, noting that of the 10,147 cases investigated by the Air Force up to that time, 9,501 were identified as known phenomena such as stars, planets, aircraft, or weather balloons. The report emphasizes the Air Force's official position that UFOs do not pose a national security threat, do not represent technology beyond current scientific understanding, and that there is no evidence of extraterrestrial vehicles or physical debris. The document also discusses the role of independent consultants, such as Dr. J. Allen Hynek and Dr. Donald Menzel, and the formation of various scientific panels, including the 1953 Robertson Panel and a 1966 ad hoc committee of the Scientific Advisory Board, to review investigatory procedures. Furthermore, the report addresses public reaction, noting the existence of numerous unofficial organizations that collect and publish UFO information, often alleging government concealment. The report concludes by mentioning the Air Force's commitment to continue investigating sightings with an open mind and the announcement of a new independent study to analyze the remaining unexplained cases. Appendices include the text of Air Force Regulation 200-2, a sample of the U.S. Air Force Technical Information questionnaire, biographical information on key consultants, and a selected bibliography.

The great lesson of western civilization is that such a relation, between natural phenomena, cannot be adequately understood on the basis of introspection, speculation or superstition, but requires investigation. The methods and techniques of investigation are what we mean by science.

Official Assessment

UFOs do not pose a threat to the nation; UFOs do not represent developments or principles beyond present-day scientific knowledge; There is no evidence of extraterrestrial vehicles under the control of an intelligent being; There is no evidence of physical matter left behind by a reported UFO; Some small fraction of total sightings remain unidentified.

The Air Force has investigated 10,147 cases, with 9,501 identified as known causes. The remaining unidentified cases lack sufficient data for analysis.

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