Documents

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."

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.

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.

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.

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.

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.

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.

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.

This CIA document from August 1967 reports on conversations about UFO sightings with Soviet scientists during a US astrophysicist's trip to the USSR.

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.

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.

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.

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.

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.

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.

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.

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.

Dated to 1971, an Australian review of the USAF Project Blue Book. This document was released by the National Archives of Australia.

This memorandum summarizes the All-domain Anomaly Resolution Office’s (AARO) ongoing analysis of a reported incident near a sensitive national security site in the western United States involving unidentified anomalous phenomena (UAP) over a period of two days in 2023. As of June 2026, the case remains unresolved.

This image is a notional representation of four incidents reportedly involving unidentified anomalous phenomena in the western United States, as seen from above. This illustration depicts multiple incidents reported by U.S. federal law enforcement special agents over a period of several days in October 2023.

This memorandum presents the first-hand narrative from Witness 1 provided to the All-domain Anomaly Resolution Office (AARO). Witness 1 was one of several United States (U.S.) federal law enforcement special agents who reported observing unidentified anomalous phenomena (UAP) over a period of two days in October 2023 in the western United States.

This memorandum presents the first-hand narrative from Witness 2 provided to the All-domain Anomaly Resolution Office (AARO). Witness 2 was one of several United States (U.S.) federal law enforcement special agents who reported observing unidentified anomalous phenomena (UAP) over a period of two days in October 2023 in the western United States.

This memorandum presents the first-hand narrative from Witness 3 provided to the All-domain Anomaly Resolution Office (AARO). Witness 3 was one of several United States (U.S.) federal law enforcement special agents who reported observing unidentified anomalous phenomena (UAP) over a period of two days in October 2023 in the western United States.

This memorandum presents the first-hand narrative from Witness 4 provided to the All-domain Anomaly Resolution Office (AARO). Witness 4 was one of several United States (U.S.) federal law enforcement special agents who reported observing unidentified anomalous phenomena (UAP) over a period of two days in October 2023 in the western United States.

This memorandum presents the first-hand narrative from Witness 5 provided to the All-domain Anomaly Resolution Office (AARO). Witness 5 was one of several United States (U.S.) federal law enforcement special agents who reported observing unidentified anomalous phenomena (UAP) over a period of two days in October 2023 in the western United States.

This file contains an Evaluation Study of the Phenomenon (Flying Saucers) prepared at the request of the Plans & Operations Divisions of the General Staff, U.S. Army (P&O, GSUSA) to determine if the origin could be traced to natural phenomena or the activities of a foreign power.

This file contains a copy of the CIA's 1953 "Report of the Scientific Panel on Unidentified Flying Objects" that was sent to the Secretary of Defense.

This document is a memorandum from the Commandant of the 5th Naval District, and it cites a memorandum related to "flying discs" from the Chief of Naval Operations. The memorandum requests that naval stations report incidents to the nearest Air Force command and to the Naval District Intelligence Office.

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

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

This document is a Federal Bureau of Investigation (FBI) FD-302, a form the FBI uses to record interviews. This FD-302 contains a summary of an interview with a U.S. military service member in March 2025 regarding a February 2022 incident potentially involving unidentified anomalous phenomena (UAP). The individual described the phenomenon as being “bean shaped,” “matte white” or “off-white” in color, with a surface covered in “intersecting lines or ridges which formed an abstract polygon pattern.” The individual described the phenomenon as “motionless” and that “no sound could be heard coming from it.” FBI Note: AARO has since been in contact with the interviewee to conduct subsequent interviews to inform its analysis of this incident.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FD-1057 contains a first-hand narrative description of unidentified anomalous phenomena (UAP) reported near Colorado Springs, Colorado. The interviewee provided this statement to FBI special agents to aid in producing a digital artistic interpretation of the incident.

This image is an artistic interpretation of a 2022 incident potentially involving unidentified anomalous phenomena (UAP) reported near Colorado Springs, Colorado. This image is derived from the first-hand narrative description contained in “FBI-UAP-D002, FD-1057, Unresolved UAP Report, Colorado Springs, 2022”.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FD-1057 documents the FBI’s contact with a U.S. person in October 2024, during which FBI special agents collected video footage and gathered information regarding the circumstances surrounding its capture. The U.S. person captured the video footage in the same general location as the incidents described in documents. The subject matter described in files FBI-UAP-D004 through FBI-UAP-D008 and depicted in the video footage FBI-UAP-PR001 through FBI-UAP-PR003 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FD-1057 documents an October 2024 interview with a US person regarding several incidents potentially involving unidentified anomalous phenomena in the northeastern United States over the previous three years. The subject matter described in files FBI-UAP-D004 through FBI-UAP-D008 and depicted in the video footage FBI-UAP-PR001 through FBI-UAP-PR003 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FD-1057 documents a November 2024 site survey of a location where a U.S. person reported observing unidentified anomalous phenomena multiple times over the previous three years. The subject matter described in files FBI-UAP-D004 through FBI-UAP-D008 and depicted in the video footage FBI-UAP-PR001 through FBI-UAP-PR003 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FBI FD-1057 documents first-hand observations made by two FBI special agents’ during the course of an ongoing investigation in November 2024. The subject matter described in files FBI-UAP-D004 through FBI-UAP-D008 and depicted in the video footage FBI-UAP-PR001 through FBI-UAP-PR003 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-1057, a form the Federal Bureau of Investigation (FBI) uses to record investigative activity. This FBI FD-1057 documents a December 2024 site survey of a location where two FBI special agents had previously observed unidentified anomalous phenomena. The subject matter described in files FBI-UAP-D004 through FBI-UAP-D008 and depicted in the video footage FBI-UAP-PR001 through FBI-UAP-PR003 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-302, a form the Federal Bureau of Investigation uses to record interviews. This FD-302 records a February 2026 interview with a U.S. person, in which they described incidents potentially involving unidentified anomalous phenomena. The subject matter described in files FBI-UAP-D009 and FBI-UAP-D010 and depicted in the video footage FBI-UAP-PR004 corresponds to reports originating from the same general area in the northeastern United States.

This document is an FBI FD-302, a form the Federal Bureau of Investigation uses to record interviews. This FD-302 records an interview with a U.S. person regarding their first-hand account of an incident potentially involving unidentified anomalous phenomena. The subject matter described in files FBI-UAP-D009 and FBI-UAP-D010 and depicted in the video footage FBI-UAP-PR004 corresponds to reports originating from the same general area in the northeastern United States.

This collection of documents contains correspondence between the Director of the Federal Bureau of Investigation (FBI), J. Edgar Hoover, and Rev. Charles Barnes concerning Barnes’ account of an incident potentially involving unidentified anomalous phenomena (UAP). Rev. Barnes described observing four beams of light “converging in the Cascade Mountains,” at an altitude of approximately 10,000 feet, with a “great explosion” visible at the convergence point of those beams for at least ten minutes. Director Hoover replied to Rev. Barnes thanking him for his letter and informing him that he had forwarded it to the Atomic Energy Commission (AEC). Director Hoover conveyed to the AEC that Rev. Barnes believed that the event may relate to a military or scientific experiment within the commission’s purview.

This file details a special inquiry by the Federal Bureau of Investigation’s Newark Field Office of various reported sightings of unidentified flying objects (UFOs) in and near New Jersey between August 1952 and January 1967. These files include memoranda and correspondence between the FBI and the U.S. Air Force regarding UFO sightings, as well as public correspondence concerning various UFO-focused groups.

This file details an investigation of various sightings of Unidentified Flying Objects (UFOs) in Washington state between July 1952 and August 1960. This file includes memoranda and correspondence between the Federal Bureau of Investigation and the U.S. Air Force regarding UFO sightings.

This document contains analysis by an All-domain Anomaly Resolution Office (AARO) Intelligence Community (IC) partner to account for a 2022 incident involving an airborne object near Colorado Springs, Colorado. U.S. military service members reported the incident to AARO in 2023. AARO’s IC partner assessed, with low confidence, that the reported phenomenon, which observers characterized as resembling an “angular, non-symmetrical potato,” was attributable to sunlight backscattering, where sunlight reflecting from mountain snow cover illuminated the underside of low-altitude clouds. This low-confidence assessment contributes to AARO’s consideration of the incident, which remains unresolved as of June 2026.

This file contains memoranda, correspondence, reports, and other materials relating to contemporary scientific interest in investigating the nature of luminous phenomena reported by astronauts John Glenn and Walter Schirra during spaceflight. This collection includes transcripts from NASA interviews and debriefings with both astronauts regarding those observations. It also contains details relating to scientific observations of atmospheric phenomena, including brief descriptions of luminous particles, experiences while aboard spacecraft, and circa 1955 theoretical analysis of meteoric particles entering the atmosphere. Pages 34-35, 55-56, 57-63, 64-113, and 122-127 feature content relevant to the PURSUE initiative.

This document is a preliminary transcript (Part I) derived from voice recordings of the Gemini 4 flight crew debriefing taken aboard the recovery ship, USS Wasp, on June 9, 1965. Astronaut Ed White recounts seeing “sparkles” during the flight.

This document is a preliminary transcript (Part II) derived from voice recordings of the Gemini 4 flight crew debriefing taken aboard the recovery ship, USS Wasp, on June 9, 1965. Part II of this document contains the “Visual Sightings” section of the debriefing (pages 196-224), where astronauts James McDivitt and Edward White describe their observations while aboard the spacecraft.

Gemini IV was the second crewed mission of the Gemini series. Astronauts James McDivitt and Edward White successfully completed the four-day flight between June 3 and June 7, 1965. The mission included the first American spacewalk. This collection of documents contains a transcription of the astronauts recounting their observations of bright particles outside the spacecraft, dated circa June 25, 1967, on pages 78-81, and page 101.

This document is a preliminary transcript (Part I) derived from voice recordings of the Gemini 5 flight crew technical debriefing. NASA conducted this debriefing between August 30, 1965, and September 2, 1965, at the Crew Quarters, Cape Kennedy, Florida.

This document is a preliminary transcript (Part II) derived from voice recordings of the Gemini 5 flight crew technical debriefing. NASA conducted this debriefing between August 30, 1965, and September 2, 1965, at the Crew Quarters, Cape Kennedy, Florida. Astronauts L. Gordon Cooper and Charles “Pete” Conrad described observing debris and “snow” and “all sorts of glittering pieces of this, that and the other thing” in the “Visual Sightings” section of the document (pages 157-220).

This document is a preliminary transcript derived from voice recordings of the Gemini 7 flight crew debriefing conducted December 19-21, 1965, at the Crew Quarters, Cape Kennedy, Florida. Lights and flashes are mentioned and there is discussion about having proper illumination for vehicle docking. Borman and Lovell discuss celestial and terrestrial observational anomalies and note sightings of Mercury, meteors, aurora, and lightning. They also discuss not being able to see any stars once the Sun comes up.

Gemini IX (renamed Gemini IX-A) was the seventh crewed flight of the Gemini series, launched on June 3, 1966. The mission’s primary objectives included a spacewalk and multiple scientific and medical experiments. This document, dated June 16, 1966, is a transcript of a NASA debriefing of astronauts Thomas Stafford and Eugene Cernan. Pages 2-5 of this document contain the astronauts’ accounts of their observations of “flashing lights” and “sparkles” during the mission.

This collection of documents, primarily from 1998, contains draft and final correspondence from the White House and the offices of members of Congress responding to constituent inquiries about Unidentified Flying Objects, or “UFOs.” These inquiries cover a diverse range of topics, including alleged UFO sightings by NASA astronauts, questions regarding the authenticity of photos collected during U.S. missions to Mars, alleged improper withholding of information by the U.S. Government, questions regarding the appropriateness of “UFO-related” governmental spending, and calls for congressional hearings regarding the nature and existence of “UFOs.” The official responses consistently state that, circa 1998, the U.S. Government is not aware of evidence supporting the existence of extraterrestrial technology, and that NASA does not actively investigate “UFOs.” The collection includes references to materials of both confirmed and unconfirmed authenticity, as provided by constituents, as well as references to historical, scientific literature addressing specific “UFO” sighting claims.