CIA
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CIA-UAP-002, Scientific Advisory Panel on Unidentified Flying Objects, Report, 1952-1953
This file contains correspondence and reports dated 1952–1953 from the Scientific Advisory Panel on Unidentified Flying Objects, convened by the CIA’s Office of Scientific Intelligence. The panel’s primary conclusion was that “flying saucers” did not pose a direct physical threat to the national security of the United States. The panel found no evidence that these phenomena were attributable to hostile foreign artifacts or indicated a need to revise existing scientific concepts. However, the panel identified a significant indirect threat stemming from the public’s fascination with the subject. The panel concluded that the high volume of reports, encouraged by a "sensationalist press," could overwhelm and clog vital intelligence and communication channels, potentially distracting from genuine threats. Furthermore, they warned that a “morbid national psychology” could be exploited by adversaries to incite “hysterical behavior and harmful distrust of duly constituted authority.” To mitigate these risks, the panel recommended an official policy of “debunking” to “strip the UFO subject of its mystery,” alongside a training initiative for military personnel to better recognize and filter out misidentified objects, thereby reducing communication “noise” and allowing the national security apparatus to focus on more "legitimate defense concerns."
CIA-UAP-003, The Central Intelligence Agency and Overhead Reconnaissance; The U-2 and OXCART Programs, 1954-1974
This CIA History Staff document chronicles the complete history of the U-2 and OXCART (A-12) high-altitude reconnaissance aircraft programs from 1954 to 1974, detailing their development, operations over the Soviet Union and other targets worldwide, the famous downing of Francis Gary Powers in 1960, organizational reforms following that incident, and the eventual transfer of operations from CIA to Air Force control. A more redacted version of this document has been available on CIA's public website.
CIA-UAP-004, CASE 17708 (CLOSED) and DR. Leon Davidson
This 1958 CIA memorandum discussing a phone conversation with Dr. Leon Davidson regarding concerns about a destroyed "space message and its transmitter." A redacted version of this memorandum has been available on CIA's public website.
CIA-UAP-005, German Scientist's Article on 'Flying Discs'
This 1950 CIA Information Report from Chile discusses a German scientist's article theorizing that "Flying Discs" could be explained as a new type of aircraft based on aerodynamic principles developed in German research facilities during and after WWI, using rotating cylinders or gas-turbines to create lift through boundary layer manipulation, rather than conventional wings. A redacted version of this report has been available on CIA's public website.
CIA-UAP-006, Sighting Of Unconventional Aircraft
This CIA information report from November 1955 describes a US national's eyewitness account of triangular aircraft with wing lights launch at a steep angle from an airfield near Baku, Azerbaijan on October 4, 1955. A redacted version of this report has been available on CIA's public website.
CIA-UAP-007, Current Status Of Unidentified Flying Objects (UFO) Project.
This December 1953 memorandum provides a status update on the Air Force's UFO project activities, including ongoing intelligence operations, equipment procurement for photographing UFOs, and Canada’s establishment of a "laboratory" for recording observable phenomena. A more redacted version of this memorandum has been available on CIA's public website.
CIA-UAP-008, Speculative Paper By N Kardashev and A Sakharov on Charged Mass in Space at Conference on Origins Of Life, Armenia, 6-8 September 1971/Low Scientific Level Of Other Soviet Papers
This 1972 CIA Intelligence Information Report summarizes a US attendee's observations of a speculative paper regarding charged mass behavior in space presented by Soviet scientists N.S. Kardashev and A. Sakharov at a conference in Armenia. A more redacted version of this report has been available on CIA's public website.
CIA-UAP-009, Unknown Flying Objects Observed Over Budapest
This is a 1957 CIA Information Report regarding UFO sightings over Budapest. A more redacted version of this report has been available on CIA's public website.
CIA-UAP-010, Report on Conversations with Soviet Scientists on Subject of Unidentified Flying Objects in the USSR
This CIA document from August 1967 reports on conversations about UFO sightings with Soviet scientists during a US astrophysicist's trip to the USSR.
CIA-UAP-011, The Sary Shagan Weapons Testing Range
This CIA Intelligence Information Report from December 1973 provides information on the Soviet Sary Shagan Weapons Testing Range, including details about its facilities, weapons systems (System-75 SA-2 and System-300/Aldan warheads), rumored laser weapon research, and unidentified aerial phenomenon observed at the site. A more redacted version of this report has been available on CIA's public website.
CIA-UAP-012, Combating Fatigue In Crewmembers
This November 1976 CIA Foreign Intelligence Information Report summarizes Soviet Aeroflot's involvement in aerospace medical research, including their methods for combating crew fatigue through physical conditioning, automated biological testing equipment that measures vital signs in 1-3 minutes, and discussions about UFO phenomena with a Soviet radiation biologist. A more redacted version of this report has been available on CIA's public website.
CIA-UAP-013, Report of Unusual Flying Object Sightings and Attendant Scientific Activity
This 1956 CIA Information Report describes flying object sightings reported by a Budapest-based sub-source, including a sketch showing the objects' suspected formation and flight path between Budapest and Moscow. A more redacted version of this report has been available on CIA's public website.
CIA-UAP-014, British activity in the Field of "Unidentified Flying Objects"
A December 1952 Memo on the activities the British are taking to identify UFOs. The memo references a UFO sighting at an RAF field seen by high officials and RAF pilots. A more redacted version of the memo has been available on CIA's public website.
CIA-UAP-015, Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)
This is the USAF Project Blue Book with a CIA cover sheet stating the document is "Official Record Copy." With the exception of the handwritten note on the first page, the content of this document has been available on CIA's public website.
CIA-UAP-016, Sightings of Unidentified Flying Objects in Ladakh, Nepal, Sikkim and Bhutan
A 1968 report about UFO sightings in Ladakh, Nepal, Sikkim and Bhutan. Seven UFO sightings are listed that took place between 19 Feb. to 25 Mar. 1968. A more redacted version of the report has been available on CIA's public website.
CIA-UAP-017, Placement on High Alert Due to Perceived Aggressive Foreign Posturing
A never before released July 2008 report on a UFO sighting at the Harare International Airport. Individuals debated if the sighting was an advanced reconnaissance device of a foreign government or of extraterrestrial origins.
CIA-UAP-018, Report of Unusual Flying Object Sightings and Attendant Scientific Activity
A 1955 report on a UFO sighting in Hungary. The information came from a letter between Hungarian relatives, living in the USA and Budapest. A more redacted version of the report has been available on CIA's public website.
CIA-UAP-019, Australian Dept of Defense Scientific and Intel Aspects of the UFO Problem
Dated to 1971, an Australian review of the USAF Project Blue Book. This document was released by the National Archives of Australia.
CIA-UAP-D001, Intelligence Information Report, USSR, 1973
This document is a Central Intelligence Agency (CIA) intelligence information report (IIR) that describes human intelligence gathering activities in the Union of Soviet Socialist Republics (USSR). This report characterizes its content as informational, not as finally evaluated intelligence. In section 14 of this document, the source describes an incident occurring in summer of 1973, where he allegedly observed an airborne, luminous, bright green, unidentified object. The source described concentric circles forming around the phenomenon over a period of several minutes, before it dissipated. The source also stated that no sound attended the observation. The source offered no opinion on the nature of the phenomenon and was unable to provide further details regarding the incident.
CIA-UAP-D020, Memorandum on Unconventional Aircraft Sightings, 1955
This memorandum summarizes a Central Intelligence Agency (CIA) debriefing of a group of four individuals who reported observing a “flying saucer” or “unconventional aircraft” in 1955. The group, which included U.S. Senator Richard Russell, a U.S. military service member, and two U.S. Government officials, reported observing a luminescent “greenish-yellow” phenomenon, as seen from aboard a train while traveling within the Soviet Union, in present-day Azerbaijan, between Baku and Tiflis (Tbilisi, Georgia). The document concludes by stating that the observation can “probably be explained as steep climbing aircraft or missiles,” and that “the evidence does not appear sufficiently firm to warrant the conclusion that the Soviets have developed […] a radically new type of aircraft.” The document “CIA-UAP-D021” contains a contemporary analysis of the incident.
CIA-UAP-D021, Analysis of Unconventional Aircraft Sightings, 1955
Sections 1 and 2 of this memorandum document a 1955 analysis of reports of “flying saucers” or “unconventional aircraft,” referencing the incident described in observer debriefings contained within CIA-UAP-D020. The memo summarizes the incident as consisting of two lights rising vertically, then passing above the observers. The memo contains caveating language that suggests the author concluded that the reports, as described, did not indicate the presence of an “unconventional aircraft.” Section 3 cites a previous finding by Dr. [Howard] Robertson (of the 1953 Robertson Panel) that “almost all the sightings […] represented no threat to the U.S.” Section 4 discusses the state of then-current research into “saucer-like aircraft” under Project “Y,” a contemporary joint U.S.-Canadian aerospace development program.
CIA-UAP-D022, Unidentified Flying Object Reported near Puerto Rico, 1965
This file contains Central Intelligence Agency (CIA) memoranda exchanged between the Assistant Director for Special Activities (AD/SA) and the Assistant Director for Scientific Intelligence (AD/SI) regarding an incident allegedly involving unidentified aircraft in the vicinity of Puerto Rico. The AD/SI was then-responsible for analyzing foreign scientific advancements and technological threats, such as Soviet nuclear, chemical, and ballistic missile capabilities. The AD/SA managed the CIA’s classified overhead reconnaissance operations, including the deployment of advanced aircraft like the U-2 and A-12 OXCART. Together, these offices ensured the United States could both gather critical intelligence over contested territories and accurately evaluate the technical capabilities of foreign adversaries during the Cold War. The memoranda refer to an incident on November 19, 1964, in which a U.S. Naval aviator described observing an unidentified object as “delta-shaped, about the size of a jet fighter.” The pilot visually estimated the object’s velocity as Mach 3 (approximately 2,200 mph). A corresponding track from an AN/SPS-49 radar system aboard a U.S. Navy guided missile destroyer in the area, USS Gyatt, measured the object’s speed at 3,800 knots (approximately 4,373 mph). The memoranda indicate that, in the opinion of the AD/SI, the object was conceivably associated with foreign intelligence gathering activities, citing active missile testing within the AFWR, or Atlantic Fleet Weapons Range, as being an attractive reconnaissance target. The AD/SA and AD/SI also ruled out domestic experimental aircraft, such as the YF-12A OXCART, as a potential attribution.
CIA-UAP-D023, Briefing Notes for Mr. Walter Elder
This document contains briefing material prepared for Mr. Walter N. Elder, Executive Assistant to the Director of the Central Intelligence Agency (CIA), regarding a November 19, 1964, incident allegedly involving unidentified aircraft in the vicinity of Puerto Rico. The previous entry in this collection, CIA-UAP-D022, contains CIA memoranda on the same subject matter. The briefing includes additional details regarding that incident, including a characterization of the meteorological conditions and sensing capabilities of nearby U.S. military collection systems. The briefing states that a radar system aboard USS Gyatt, a guided missile destroyer operating in the vicinity, detected a contact tracking more than 3,800 knots (approximately 4,373 mph) over a period of 21 minutes. The briefing contains visual estimates regarding the phenomenon’s apparent capabilities from the pilot of an F-8 Crusader who was present during the incident.