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According to the releasing agencies, this is a 1971 Australian Department of Defence intelligence and scientific review of the United States Air Force Project…

This 55-page FBI file, released by the U.S. Department of War, details the Bureau's Seattle office handling of civilian and military reports of Unidentified Fl…

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This declassified CIA memorandum, dated 9 January 1953, addresses the recruitment of two scientists as ad hoc consultants to the Office of Scientific Intellige…

This CIA Reading Room document is a one-page memorandum dated 9 December 1952, authored by W. E. Graham and addressed to DAD/SI, on the subject of 'FCC Monitor…

This unclassified CIA document (sequence CSB91554381) is a translated/abstracted foreign-press report drawn from the Soviet newspaper Pravda Vostoka. It report…

This CIA document, released through the agency's electronic reading room, is an early-1950s internal memorandum examining the national security dimensions of u…

According to the releasing agency, this file is an initial progress report produced by the Air Materiel Command concerning Project Sign, a 1948–1949 U.S. Air F…

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

This image is a page from DOW-UAP-D094, a USAF Air Intelligence Division study titled 'Analysis of Flying Object Incidents in the United States,' Study No. 203…

This declassified CIA document, hosted in the CIA Reading Room (DOC_0000015338), is a compilation of 1952 memoranda, draft National Security Council directives…

,4C CIA memter internal memPhysics and Electronics division memto the assistant Director for Scientific Intelligence, dated December 1953, summarizing the curr…

This December 1953 memorandum provides a status update on the Air Force's UFO project activities, including ongoing intelligence operations, equipment procurem…

This file combines a page of an international UFO-research organization directory with an article titled 'The U.S. Government & The Iran Case' and a verbatim r…

According to the releasing agency (U.S. Department of War, sourcing the CIA), this file contains 1952–1953 correspondence and reports from the Scientific Advis…

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

This two-page CIA memorandum, signed by H. Marshall Chadwell (Assistant Director, Scientific Intelligence) and addressed to the Chief of the Physics and Electr…

This two-page CIA memorandum, dated 29 May 1953, discusses questions received from Leo (Leon) Davidson directed at Bob Robertson and 'Lloyd' regarding their ac…

This declassified Central Intelligence Agency report, marked 'unevaluated information,' recounts a source's account of unidentified flying objects observed ove…

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 two-page CIA document, hosted in the CIA FOIA Reading Room, reports the observation of an unidentified flying object near the Iranian frontier. According…

This two-page CIA Office Memorandum, dated 3 July 1953, was authored by the Chief of the Physics & Electronics Division of the Office of Scientific Intelligenc…

This CIA/OSI memorandum for file, dated 21 January 1953, documents the meeting of an ad hoc scientific advisory panel — later known as the Robertson Panel — co…