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Official reports, hearing transcripts, case files and releases: the paper behind the cases. 2,872 documents, 2,610 mirrored with their text, 53,529 pages indexed, so a search reads inside them and lands on the page.
New in the library The PURSUE files The Department of War's UAP release, mirrored in full: the videos, recordings and images, each beside its case file.Documents2,872 records · page 23
This Defense Intelligence Reference Document, dated 1 November 2010 and numbered DIA-08-1011-002, was prepared by the Defense Intelligence Agency's Defense Warning Office. It is one of a series of advanced technology reports produced under the Advanced Aerospace Weapon System Applications program. It draws mainly on the book Frontiers of Propulsion Science and speculates about breakthroughs such as control of gravity and inertia and faster-than-light travel. It then proposes a provisional cockpit design with six-degree-of-freedom controls, virtual displays and no windows.
This Defense Intelligence Reference Document (DIA-08-1011-001), dated 1 November 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapon System Applications program. It covers nanosatellite technologies, laser Lightcraft propulsion, a weapon mission selection study and a multi-megawatt laser study. The author recommends that the Department of Defense, working with NASA, bring laser Lightcraft propulsion research back to the United States and restart the Air Force X-50LR test flight program.
This Defense Intelligence Reference Document was prepared by the Defense Intelligence Agency's Defense Warning Office and dated 1 November 2010. It is one of a series of advanced technology reports produced under the Advanced Aerospace Weapons System Applications Program. The report reviews how ultracapacitors work, how they compare with batteries, their history and materials, and their commercial, military and aerospace uses. It concludes that new materials and cell designs will raise energy density and that the U.S. government must understand the devices' spectral signatures.
This Defense Intelligence Reference Document was prepared by the Defense Intelligence Agency's Defense Warning Office in fiscal year 2010 as part of the Advanced Aerospace Weapons System Applications program. It reviews how air flows around objects at subsonic, supersonic and hypersonic speeds, covering shock waves, wakes and ionization. It then compares ways to detect and track hypersonic vehicles, including radar, optical, infrared, LIDAR, infrasound and seismic methods. The report makes four recommendations, among them building a database of aircraft wake signatures and developing novel detectors.
This Defense Intelligence Reference Document, dated 21 November 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under its Advanced Aerospace Weapons System Applications (AAWSA) Program. It reviews propulsion concepts that use weakly ionized plasmas and magnetohydrodynamics for hypersonic flight and spacecraft. It concludes that the Ajax MHD energy bypass concept is meaningless below Mach 12. A reverse energy bypass with a Virtual Cowl is judged potentially practical, and electric propulsion is expected to become standard for spacecraft.
This is a New Zealand Defence Force public release of RNZAF file AIR 39/3/3, "Flying Saucers," which covers 1952 to 1955 and was declassified in September 2010 under the Official Information Act. It collects sighting reports from the public and military personnel, press clippings, and a table of 1952 sightings. It also holds Carter Observatory opinions attributing some reports to meteors. A large part covers the inquiry into lights seen from National Airways Corporation Flight 108 on 31 October 1955, which the RNZAF could not fully explain as Venus.
This Defense Intelligence Reference Document, dated 10 December 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapon System Applications program. It examines quantum computing and DNA-based molecular computing as options for onboard supercomputing in future spaceflight. It forecasts working ion trap quantum computers within 10 years, simple DNA tile computing within 20 years, and self-repairing DNA computers and hybrid quantum dot systems on a 40-year horizon.
This Defense Intelligence Reference Document, DIA-08-1101-001, is dated 15 December 2010. The Defense Intelligence Agency's Defense Warning Office produced it under the Advanced Aerospace Weapons System Applications program. It asks how many unmanned spacecraft one pilot could control in a future deep-space fleet, drawing on air traffic control and multiple unmanned vehicle research. It concludes the limits are about 16 craft for simple tasks, 7 for moderately complex ones and 4 for complex heterogeneous craft. It adds that physiological measures can signal operator overload.
This image is an artistic interpretation of a reported incident potentially involving unidentified anomalous phenomena (UAP) in June or July of 2011. This image is based upon a first-hand description provided by two former U.S. military service members, as described in FBI-UAP-D028. The Federal Bureau of Investigation prepared this digital rendering in 2026 as a visual aid in support of the PURSUE initiative.
This Federal Bureau of Investigation FD-302 interview record, drafted in April 2025, documents a UAP sighting from June or July 2011. Two witnesses whose names are redacted described seeing a massive black triangular object at about 8 or 9 PM while leaving a driveway. It had a car-sized white light in each corner, flew low and slowly north with a pulsing hum, and was visible for 10 to 15 seconds. One witness estimated it was 800 feet up and 200 feet long.
This Defense Intelligence Reference Document, DIA-08-1101-023, is dated 3 January 2011. It was prepared by the Defense Intelligence Agency's Defense Warning Office as one of a series of advanced technology reports produced in FY 2010 under the Advanced Aerospace Weapon System Applications program. It covers theories of negative mass, including Bondi's mass dipole, Zitterbewegung and a Planck aether hypothesis. It proposes tunneling through the Moon with thermonuclear shaped charges to search for trapped negative matter. It concludes that such propulsion may perhaps be possible through an ultra-light form of matter but remains speculative.
This Defense Intelligence Reference Document, dated 11 January 2011, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapons System Applications program. It reviews negative, or sub-vacuum, energy found in the Casimir effect and squeezed light, and describes quantum optical homodyne tomography for measuring it. It proposes balanced homodyne detector systems to map negative energy. It also suggests that arrays of such sensors could detect anomalous aerospace platforms that use engineered spacetime effects for propulsion.
The National Archives issued this UFO research briefing guide, written by Dr David Clarke of Sheffield Hallam University in March 2008 and revised in August 2011. It traces British government interest in UFOs from the 1909 phantom airships and wartime foo fighters through the 1951 Flying Saucer Working Party, Air Ministry and MoD investigations, and the 1979 House of Lords debate. It lists key files held at Kew, including Rendlesham Forest papers, plus suggestions for further reading.
This Central Intelligence Agency foreign-documents report, distributed 23 August 1952, translates a Greek article published in an Athens daily newspaper on 9 July 1952. It relays the sworn statement of Oscar Linke, a former mayor of Gleimershausen who had fled the Soviet Zone. Linke said that he and his daughter Gabriella saw two men in shiny clothing beside a 13 to 15 meter object near Hasselbach. The object rose, spinning and ringed with flames, and flew off. The report marks the material as unevaluated.
These handwritten notes, released by the CIA Reading Room in a sanitized copy approved for release on 1 December 2011, are mostly an informal chronology of Soviet parapsychology research. They list Leningrad State University telepathy work, researchers such as L. L. Vasilyev and E. K. Naumov, and US remote viewing work at SRI. The final pages describe a Texas close encounter case with medical effects, a vehicle, lights and a fleet of 23 helicopters, and mention a planned trip to Houston to see the patient.
This is the annual activity report for 2012 of the Main Astronomical Observatory of the National Academy of Sciences of Ukraine, discussed by its Academic Council on 10 January 2013 and signed by director Ya. S. Yatskiv. It describes the observatory's structure and lists its main scientific results, including star cluster catalogues, galaxy spectroscopy, black hole merger modelling, GNSS data processing and comet polarimetry. It also covers publications, international cooperation, equipment purchases and staffing tables. It does not discuss UFOs.
This Central Intelligence Agency release, dated 2012-06-01, contains an English translation of a 1948 Soviet article by S. P. Tolstov and M. A. Orlov on archaeological aerial surveys in Khwarazm, Uzbekistan, during 1945 and 1946. It describes flight altitudes, lighting and camera methods for photographing ruins. The authors report flights of more than 9,000 kilometers that doubled the number of known monuments, located medieval cities and irrigation networks, and produced an archaeological map. It contains no UFO material.
This Central Intelligence Agency FOIA tasking record, case F-2012-01843, task 5217389, was produced for requester John Greenwald. The Defense Intelligence Agency referred documents to CIA for review of CIA equities in August 2012. The request asked for UFO documents released since FOIA request case 0292-97. The record holds the task details, a caution that the preliminary search is only a starting point, and an empty list of tasked documents. Much of it is redacted under exemptions (b)(3), (b)(5) and (b)(6).
This Central Intelligence Agency FOIA task record belongs to case F-2012-01843, requested by John Greenwald. It shows a referral from the Defense Intelligence Agency, sent on 15 August 2012 and returned on 11 September 2012. The subject is documents about UFOs released since FOIA request case 0292-97, and CIA was asked to review them for agency equities. The only comments are a forward for review and a concurrence. The document list and many details are redacted.
This press release from The National Archives, dated 21 June 2013, announces the final tranche of Ministry of Defence UFO files: 25 files and 4,400 pages covering the UFO desk's last two years, from late 2007 until it closed in November 2009. The files show that sighting reports trebled to over 600 in 2009. Officials said no report in more than 50 years had revealed an extra-terrestrial presence or a military threat. Chinese lanterns are cited as a likely cause of the surge.
This Central Intelligence Agency file, declassified and approved for release on 2013/06/24, is a collection of published UFO photographs and captions. It includes images reported over Helsinki, Grenoble, Brazil, Bad Hersfeld, Upper Gornal, Hawthorne, Bulawayo and Salem, Massachusetts. It also has Cedric Allingham's 1954 Lossiemouth photographs, Palomar Gardens telescopic pictures from 13 December 1952, a Washington D.C. Airport radar plot, and Captain Jack Bicknell's sketch from near Mount Kilimanjaro. The file offers no analysis or conclusions.
This Central Intelligence Agency release, declassified and approved for release on 24 June 2013, is a collection of UFO photographs and pages from flying saucer books. It reproduces pictures including the Coniston saucer, the Trent photograph at McMinnville and a radar plot from Washington, D.C. Airport of 15 August 1952. The pages also discuss the Norwich sighting by F. W. Potter, the Bicknell sighting near Kilimanjaro, Maury Island and Farmington. The CIA adds no analysis of its own.
This CIA release, dated 2013-06-24, is an English translation of "UFOs: What Are They?", an article by F. Yu. Zigel' printed in the Soviet magazine Smena in February 1967. Zigel' reviews reported sightings, including the Mantell crash, Clyde Tombaugh's 1949 observation, Antarctic station reports and radar detections. He then weighs five explanations: hoaxes, optical illusions, secret aircraft, an unknown natural phenomenon and craft from other planets. He concludes that no hypothesis is final and that the phenomenon calls for careful scientific study.
This is a Central Intelligence Agency document with a release date of 2013-06-26. It is titled Guidance to UFO Photographers and gives ten steps for photographing a UFO. The steps cover camera settings, film, and shutter speed, and they ask for several pictures. The photographer should take shots from different spots to set a base line, then take a 360 degree series of the surrounding area and keep the original negatives safe. The document also includes a blank information sheet that asks for camera details, the date, time, direction, location and where the film was processed.
This CIA-released foreign broadcast report, dated November 2, 1954 and declassified in 2013, summarizes an October 30, 1954 Hungarian Home Service radio interview on flying saucers with Professor Jozsef Oveges and journalists Gomori and Tibor Peto. Oveges argued saucers could be neither earthly rockets nor probable spaceships, attributing sightings to atmospheric effects and a recent meteor over Hungary. Gomori and Peto described the saucer stories as mass hysteria organized for political purposes by imperialist forces.
This is a secret memorandum dated 17 February 1967 from the Chief of the Technical Intelligence Division to the Director of the National Photographic Interpretation Center. The CIA approved it for release in 2013. It reports a photo analysis of Polaroid pictures of an alleged UFO taken on the shore of Lake St. Clair, Michigan, which were supplied by the Air Force's Aerial Phenomena Office at Wright-Patterson AFB. It estimates the object's size from stated assumptions but calls the results inconclusive and says it found no definite evidence of a hoax.
This declassified CIA document, released in 2013, is F. C. Durant's memorandum of 16 February 1953 on the Scientific Advisory Panel on Unidentified Flying Objects. The Office of Scientific Intelligence convened the panel from January 14 to 18, 1953, and Dr. H. P. Robertson chaired it. The memorandum gives a history of the meetings and the members' unofficial comments. The panel found no evidence of a direct threat to national security and rejected the Navy's analysis of the Tremonton film. It recommended an educational program to reduce public concern. The release also contains a later Air Force summary of a 1955 statistical study.
This Central Intelligence Agency memorandum for the record, written by the Chief of NPIC's Technical Intelligence Division, describes a 5 May 1967 briefing for Dr. Edward Condon and colleagues on NPIC's analysis of the Zanesville, Ohio, UFO photographs. Condon called it the first scientific UFO analysis that would stand up to investigation. The group discussed moving future analysis to University of Colorado control, reviewing NICAP's photo files, and giving Polaroid cameras to police officers and pilots.
This CIA memorandum for the record, dated 23 February 1967 and written by the Chief of NPIC's Technical Intelligence Division, describes a 20 February 1967 visit by Dr. E.U. Condon and members of his University of Colorado UFO study team to NPIC. NPIC agreed to give only technical photogrammetric help, with no written reports or conclusions, and no reference to CIA. The group received briefings on photogrammetry, microdensitometry and analysis of UFO photographs.
This is a letter dated August 8, 2013 from Lisa L. Bentley, FOIA Manager for the 355th Communications Squadron at Davis-Monthan Air Force Base, Arizona, to John Greenewald. It answers his July 2013 request for all documents supporting the theory that A-10s dropped leftover flares, rather than a UFO being seen, on March 13, 1997. The base found no records because such operational data is kept for only six months and the documents had been destroyed. The letter explains how to appeal.
This Central Intelligence Agency release, dated 2013-08-19, is a short excerpt from an article about UFOs. It reports that the government, perhaps the President, was expected before the end of the year to make "unsettling disclosures" about unidentified flying objects, based on CIA information. The text says such disclosures would reverse an official policy that had previously downplayed UFO incidents. The rest of the record is marked "Page Denied."
This newspaper article by Mort Young, Journal-American special writer, appears in a CIA release dated 2013. It reports that APRO of Tucson warned a Congressional investigation of UFOs might not be in the national interest and called for broader scientific study. House Republican Leader Gerald R. Ford sought hearings on UFO sightings and Project Bluebook after Michigan reports, while NICAP and Donald Keyhoe accused the Air Force of suppressing evidence. A caption shows Kenneth Arnold's drawing of his 1947 sighting.
This is a September 30, 2020 FAA FOIA Program Management Division response to John Greenewald, Jr. of The Black Vault. His February 22, 2014 request (2014-009122) asked for the FAA's FOIA case log for 2013. The FAA released one 176-page record, the FY 2013 FOIA log. It withheld third-party names under Exemption 6. The log lists requests by number, requester, organization, date and subject. Most concern airman files, accidents and enforcement records, and one seeks FAA correspondence with Bigelow Aerospace and the National UFO Reporting Center.
This Central Intelligence Agency release, dated 2014, contains a 1958 exchange between the National Security Council and Major Donald E. Keyhoe, Director of NICAP, about unidentified flying objects. In an October 14, 1958 memorandum, NSC Executive Secretary James S. Lay, Jr. forwards Keyhoe's October 1 letter and his reply to the Department of Defense, with copies to the CIA. Lay says he cannot discuss NSC policies. Keyhoe's letter asks whether the NSC controls UFO information policy and says NICAP has proof of CIA interest.
This is a letter to the editor of The Courant, signed by Neil J. Almquist and held in a Central Intelligence Agency release dated 2014-06-12. It quotes the revised Air Force Regulation 200-2 of 20 July 1962 on UFO interception, limits on releasing information to the press, and reporting to the Foreign Technology Division. The letter argues that UFOs are serious business, citing former CIA director Roscoe Hillenkoetter's call for open Congressional hearings, and refers readers to NICAP.
This CIA file, released 2014-06-12, is a UPI newspaper clipping from the Times-West Virginian dated February 28, 1960. It says the Air Force Inspector General sent its commands a directive on December 24 telling them to treat UFO sightings as "serious business" tied to national defense. The private group NICAP made the directive public, and NICAP board member Vice-Adm. R. H. Hillenkoetter accused the Air Force of secrecy and called for open congressional hearings.
This North American Newspaper Alliance article, released by the Central Intelligence Agency in 2014, reports that civilian UFO groups were pressing Congress to investigate flying saucers. It covers the earlier House space committee subcommittee under Rep. Joseph E. Karth, whose hearings ended after Chairman Overton Brooks refused to hold them in public. It quotes former CIA director Adm. R. H. Hillenkoetter, Albert W. Chop, Dr. Clyde W. Tombaugh and Rep. John W. McCormack, who all favored a congressional inquiry or took UFOs seriously.
This is a newspaper article by Bulkley Griffin, chief of the Evening Gazette Washington Bureau, held in Central Intelligence Agency files with a 2014 date. It reports that Adm. R. H. Hillenkoetter, CIA director from 1947 to 1950, said UFOs operate under intelligent control and called for a Congressional investigation. The article uses the U-2 cover story to ask whether the Air Force is misleading the public about UFOs. It also mentions an early 1950s CIA-arranged scientific meeting at the Pentagon.
This file, released by the Central Intelligence Agency with a date of 2014-06-12, holds a newspaper editorial titled "Flying Saucer Alert." It reports that the Air Force told its commands to treat unidentified flying objects as "serious business." It quotes retired Vice Adm. R. H. Hillenkoetter, a former CIA director and spokesman for a private saucer research group, who called for congressional hearings and accused the Air Force of hiding facts. It notes the Air Force had investigated 6,312 UFO reports since 1947.
This is a newspaper editorial titled "Flying Saucers Again," found in Central Intelligence Agency records released in 2014; the clipping's own date is left blank. It disputes retired Vice Adm. R. H. Hillenkoetter's claim that the Air Force deceives the public about flying saucers. The editorial cites Air Force figures of 6,312 reports since 1947 with no physical evidence. It notes Hillenkoetter sits on the board of NICAP and has asked the Senate Space Committee to investigate, and it doubts such an inquiry would be productive.
This is a newspaper clipping dated July 12, 1957, held in Central Intelligence Agency files. It reports an INS wire story saying the National Investigations Committee on Aerial Phenomena (NICAP) claimed Civil Aeronautics Administration tower operators near Los Angeles tracked four UFOs on radar at speeds up to 3,600 mph. The story also says NICAP named new board members, including former CIA director R. H. Hillenkoetter, and proposed an eight-point cooperation plan to the Air Force.
This is a UPI newspaper article about flying saucers, released by the Central Intelligence Agency. Donald E. Keyhoe of the National Investigations Committee on Aerial Phenomena says Senator Lyndon B. Johnson has told the Senate Preparedness subcommittee to keep a close watch on UFO developments and to report significant sightings. Keyhoe accuses the Air Force of suppressing UFO information. He cites support from former CIA head R. H. Hillenkoetter and warns that UFOs could accidentally set off a war.
This is a newspaper column held in Central Intelligence Agency files, with a release date of 2014-06-12. Bulkley Griffin, chief of the Evening Gazette Washington Bureau, wrote it. The column argues that a Congressional inquiry into UFOs is still needed. It says the CIA and the Air Force are shielding the public from the fact that some objects remain unidentified. It quotes an Air Force Policy Letter for Commanders about space surveillance and UFO study, cites Admiral Hillenkoetter, and criticizes the explanations given by consultant Dr. J. Allen Hynek.
This CIA file, dated 2014-06-12, holds a letter to the editor of The Courant from July 26, 1965. The writer suggests that the delay in releasing the Mariner Mars photos may be linked to UFO reports. The letter also accuses the Air Force of covering up UFOs, possibly on behalf of a higher agency. It quotes former CIA director Vice Admiral Roscoe H. Hillenkoetter calling for open congressional hearings. Readers are urged to write to their congressmen asking for hearings.
This CIA-released file, dated 2014-06-12, preserves an Evening Gazette newspaper article by Bulkley Griffin. It reports that House Leader John W. McCormack suggested House hearings on Unidentified Flying Objects. McCormack said he believed some UFOs are real and that the Air Force had not released all its information. He noted objects seen on visual and radar at once. The article also says Vice Admiral R. H. Hillenkoetter called for an urgent Congressional investigation.
This newspaper clipping is held in Central Intelligence Agency records and carries a date of 2014-06-12. It reports on the book "The Challenge of Unidentified Flying Objects" by Prof. Charles A. Muncy, a physicist at The Defiance College, and Richard Hall, secretary of the National Investigations Committee on Aerial Phenomena (NICAP). The book presents the NICAP Board's majority opinion that reliably reported unknown devices are intelligently controlled machines from outer space. It also criticizes the secrecy and debunking it says mark the Air Force's handling of UFO reports.
This item, released by the Central Intelligence Agency with a 2014 date, is a newspaper article by NEA staff correspondent Douglas Larsey. It reports the view of Adm. Hillenkoetter that satellite and space programs, along with Moonwatch tracking observers, should provide definite evidence about UFOs. NICAP board members, including Maj. Dewey Fournet and Maj. Keyhoe, suggest satellites could detect, photograph or even communicate with UFOs. The article also describes a jet pilot's disk sighting over Washington and carries a 1952 Coast Guard photograph from Salem, Massachusetts.
This newspaper clipping, released by the Central Intelligence Agency and dated 2014-06-12 in the archive, is a Washington news article by Robert Serling. It reports claims by the National Investigating Committee on Aerial Phenomena (NICAP) that congressional committees held secret hearings on flying saucers without publishing their findings. As evidence, NICAP quoted a letter from Rep. William H. Ayres. Retired Vice Admiral R. H. Hillenkoetter and other board members said the Air Force was withholding UFO information and called that policy dangerous.