U.S. government releases fourth PURSUE tranche with UAP videos and historical files

What is in this tranche?

The fourth PURSUE tranche, published on July 10, 2026, contains 40 entries: 19 videos, 14 PDF documents, 4 audio recordings and 3 images. Most of the videos are infrared footage from 1996 to 2025 that U.S. military entities submitted to the All-domain Anomaly Resolution Office (AARO), the Pentagon’s UAP office; for three of the videos, an observer’s written report is included. The documents include early U.S. Air Force analyses from 1948 and 1949, CIA memoranda from 1955 and the report on an incident over the Pantex nuclear weapons plant in 2015. NASA contributes audio recordings on light flashes during Apollo missions and three images from the 1996 Shuttle mission STS-80.

Videos and Navy reports from the United States and its coastal waters, 1996–2020

Three Range Fouler Debriefs, U.S. Navy reporting forms for unauthorized intrusions into controlled airspace during operations and training, each accompany an infrared video. Alongside them are eight more videos from the eastern and western United States, the Atlantic and the Gulf of America (Gulf of Mexico), dating from 1996 to 2020. According to the official description, three of the videos had already been digitally altered before they were reported.

• DOW-UAP-D089, Range Fouler Debrief, Eastern United States, 2020 – Report from 2020 accompanying video PR106: the pilot describes a “quite small” object that kept its direction; its shape could not be made out, and its underside was reflective.
• DOW-UAP-PR106, Unresolved UAP Report, Eastern United States, 2020 – Eleven seconds of infrared video, submitted by U.S. Northern Command. When the sensor switches modes, the area of contrast jumps around the frame and leaves it at the top.
• DOW-UAP-D090, Range Fouler Debrief, Eastern United States, 2019 – Report from 2019 accompanying video PR112: an observer describes a small object below their own aircraft traveling fast in the opposite direction, with flight characteristics unlike anything the observer had seen in 28 years of work for the Air Force and Navy. On post-flight analysis, it appeared rectangular.
• DOW-UAP-PR112, Unresolved UAP Report, Eastern United States, 2019 – 20 seconds of infrared video, according to the official description recorded from a civilian aircraft and submitted by the Navy. After a change of zoom and mode, the area of contrast leaves the frame to the left.
• DOW-UAP-D091, Range Fouler Debrief, Atlantic Ocean, 2020 – Report from 2020 over the Atlantic accompanying video PR116: a weapon systems officer describes a dark, maroonish object about 12–15 feet tall that looked like a “large, somewhat deformed balloon”. According to the official description, it traveled with the wind without maneuvering.
• DOW-UAP-PR116, Unresolved UAP Report, Atlantic Ocean, 2020 – 32 seconds of infrared video, submitted by U.S. Northern Command; the sensor keeps the area of contrast roughly centered throughout.

Videos from the Pacific and the Middle East, 2023–2025

Infrared videos that U.S. Indo-Pacific Command (Yellow Sea, East and South China Seas) and U.S. Central Command (Middle East) reported to AARO. The official descriptions only state what can be seen in the footage and explicitly note that they contain no assessment. Alongside them are three more videos from the East China Sea (2024–2025) and one from the Middle East (2023).

• DOW-UAP-PR104, Unresolved UAP Report, Yellow Sea, 2025 – Yellow Sea, 2025: 18 seconds; the sensor tracks an area of contrast resembling a six-pointed star.
• DOW-UAP-PR100, Unresolved UAP Report, Yellow Sea, 2023 – Yellow Sea, 2023: just under five minutes from an electro-optical and infrared sensor system. In daylight mode, the footage shows a dark object against a blue background; image quality degrades over the runtime.
• DOW-UAP-PR101, Unresolved UAP Report, South China Sea, 2024 – South China Sea, 2024: after zooming in, a “line” of several areas of contrast appears, which the sensor tracks for about one minute.
• DOW-UAP-PR024, Unresolved UAP Report, Middle East, 2023 – Middle East, 2023: the sensor focuses on a dark area of contrast while two bright areas of contrast cross the frame from left to right.

An object over the Pantex nuclear weapons plant, 2015

The Pantex Plant near Amarillo, Texas, is the primary facility for the assembly, disassembly and maintenance of U.S. nuclear weapons. A security report describes how ground surveillance radar and guards tracked an unknown object there in September 2015. The report itself gives September 1; the cover page and cover letter give September 2.

• DOE-UAP-D005, Pantex Unidentified Object Incident Report, 2015 – The object initially flew north at 10–15 mph. Two guards who followed it heard no sound and could not identify any propulsion even through binoculars. Pages 5 and 6 had already been published in a more heavily redacted form on May 22, 2026, as DOE-UAP-D001.

NASA: light flashes on Apollo and an object during STS-80

Four audio recordings of debriefings of the Apollo 14 and Apollo 17 crews at the Manned Spacecraft Center in Houston deal with light flashes the astronauts perceived. The official description names the now well-documented cause: high-energy cosmic rays passing through the eye and striking the retina. Alongside them are three images of an unidentified object in low Earth orbit, taken aboard Space Shuttle Columbia during mission STS-80 between November 19 and December 7, 1996.

• NASA-UAP-D026, Apollo 14 Debriefing, 1971 – First part of the Apollo 14 crew debriefing from 1971: the questioners try to pin down the characteristics of the light flashes.
• NASA-UAP-D028, Apollo 17 Crew Medical Debriefing, 1972 – First part of the Apollo 17 crew medical debriefing from 1972: two of the three astronauts report light flashes, including in lunar orbit and on the lunar surface.
• NASA-UAP-D031, STS-80 Unidentified Object Image 2, 1996 – Second image of the series: the object appears to have rotated or tumbled about its major axis, which according to the official description is consistent with a free-floating object.
• NASA-UAP-D032, STS-80 Unidentified Object Image 3, 1996 – Third image: the object appears against the Earth and seems to have continued along a path between Columbia and the Earth.

The early years, 1948–1949

Three files from the period when the U.S. Air Force began collecting and assessing reports of unidentified flying objects, and the transcript of a conference at Los Alamos at which scientists, many of whom had worked on the Manhattan Project, discussed “green fireballs” near the laboratory.

• DOW-UAP-D097, Project Sign Progress Report, 1948 – Initial report by Air Materiel Command, the Air Force’s materiel command, on Project Sign (1948–1949). It evaluates the reports available through February 1, 1948, and examines lighted advertising blimps, among other things, as a possible source; the magazine article “The Biology of the Flying Saucer” is attached.
• DOW-UAP-D093, Analysis of Flying Object Incidents in the United States, 1948 – Study No. 203 of the Air Intelligence Division, dated December 10, 1948. According to the official description, it states that some object appears to have been seen that cannot readily be identified, and advises assuming Soviet activity if the origin is foreign.
• DOW-UAP-D094, Analysis of Flying Object Incidents in the United States, 1949 – According to AARO, apparently a later, substantively similar version of the same study, dated April 28, 1949. According to the official description, it includes examples of experimental flying-wing aircraft that might account for some reported characteristics.
• DOE-UAP-D004, Los Alamos Conference on Aerial Phenomena, 1949 – Transcript of the conference of February 16, 1949, at Los Alamos Scientific Laboratory, with participants including Edward Teller and the meteoritics expert Lincoln LaPaz. The group reached no single explanation; LaPaz considered the fireballs in all probability not conventional meteor falls.

A senator on a train through the Soviet Union, 1955

In 1955, a travel party including U.S. Senator Richard Russell saw lights in the sky from a train between Baku and Tiflis. Two memoranda of the Central Intelligence Agency (CIA) record the debriefing of the travelers and the CIA’s assessment of the sighting.

• CIA-UAP-D020, Memorandum on Unconventional Aircraft Sightings, 1955 – Memorandum from October 1955 on the debriefing. According to the official description, it concludes that the observation can probably be explained as steeply climbing aircraft or missiles, and that the evidence is not firm enough to conclude that the Soviets had a radically new type of aircraft.
• CIA-UAP-D021, Analysis of Unconventional Aircraft Sightings, 1955 – Assessment of the same sighting based on the debriefing of one of the four travelers: he saw only two lights that rose vertically and passed above the train, and could not confirm the initial report in several respects. The memorandum refers to the Robertson Panel of 1953, an expert panel, and to “Project Y”, a U.S.-Canadian project for saucer-like aircraft by the Avro company.

The Air Force and the FBI, 1954–1974

Air Force records on UFO reports and on Project Blue Book, the Air Force’s UFO investigation program from 1952 to 1969, and an FBI file. A further file contains letters on Blue Book from 1955 between agencies, Congress and members of the public.

• DOW-UAP-D095, Joint U.S.-Canadian Aviation Projects and UFO Sighting Reports, 1954-1955 – According to the official description, a file from 1954–1955 covering, among other things, the near-circular vertical take-off aircraft “Avro Project Y2”; a 1954 memorandum suggests that such aircraft with a circular planform may be mistaken for UFOs. It also contains the case of a KC-97 near Newfoundland in July 1955, in which a committee could not explain simultaneous ground radar returns and aircrew sightings.
• DOW-UAP-D092, Department of the Air Force Committee to Review Project Bluebook, 1966-1967 – According to the official description, the deliberations of an ad hoc committee of the Air Force Scientific Advisory Board, 1966–1967. It recommended contracting a team of university scientists to investigate selected sightings. The Air Force adopted the recommendation.
• FBI-UAP-D014, Correspondence Relating to UFO Sightings, 1967, 1974 – Two matters: an eleven-year-old boy’s 1967 report from Chicago of a “weird” noise and a flash of light, and a 1974 inquiry about an alleged sighting of an occupied UFO on April 8, 1954. The FBI replied that it had no information on it and did not collect information on UFO sightings in general.