File Explorer

This declassified NSA Technical Journal essay by cryptologist Lambros D. Callimahos discusses the scientific premise that extraterrestrial intelligence likely…

This document is a July 1993 article by Mark Tapscott in Defense Electronics, preserved in the CIA's declassified reading room (approved for release 2003/09/10…

This document is a scanned Defense Electronics magazine article (July 1993, p.17) by Mark Tapscott, held in the CIA's declassified reading room. It reports tha…

This three-page cable, classified SECRET and marked RYBAT/WNINTEL, was sent from the CIA's Denver station to the Director on 22 February 1996. It reports that…

This unevaluated CIA intelligence report gathers translated newspaper accounts of unidentified flying object ('flying saucer') sightings published in various f…

This 116-page compilation, released by the U.S. Department of War, gathers correspondence and investigative documentation from the Armed Forces Special Weapons…

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This file is part of a U.S. Department of War UFO records release (war.gov) and consists of consecutively numbered incident summaries (173–233) built around a…

This CIA Information Report, dated 1968 and classified Confidential/No Foreign Dissem/Controlled Dissem, compiles particulars of seven sightings of unidentifie…

This file compiles the records of the CIA Office of Scientific Intelligence's Scientific Advisory Panel on Unidentified Flying Objects, chaired by H. P. Robert…

This 214-page PDF is Section 4 of the FBI's central-records UFO case file 62-HQ-83894 (serials 131–185), part of a larger file the releasing agency describes a…

The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying di…

This CIA report, dated 2 September 1952, aggregates unevaluated eyewitness accounts of unidentified flying objects published in French daily newspapers from Da…

This CIA Reading Room document (DOC_0000015422) is a memorandum to the USAF from the Chief of the Detroit Office, dated 16 December 1960, forwarding a report o…

Released as part of a U.S. Department of War (war.gov) UAP records disclosure, this 66-page file documents the Federal Bureau of Investigation's Newark Field O…

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The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying di…

This CIA Central Intelligence information report (No. 00-W-23682), dated 5 August 1952, reproduces a foreign-document translation drawn from the Athens Greek-l…

This unclassified extract from the CIA journal Studies in Intelligence, authored by Major Hector Quintanilla, Jr., surveys the history and methodology of offic…

This monograph, authored by NRO historian Gerald K. Haines and released via a Black Vault FOIA-related archive, chronicles CIA engagement with the UFO phenomen…

Includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and oth…

This CIA Information Report, distributed 11 February 1952 and derived from a reinterrogation of the informant of report SO-49149x, describes light phenomena ob…

This four-page CIA cable, transmitted from the Guatemala City station to Director and Mexico City in April 1973, documents a station investigation (run through…

According to the U.S. Department of War source page, this file is a Central Intelligence Agency memorandum documenting the debriefing of a group of four observ…