THE DOCUMENT
NASA-UAP-D015 (“Astronaut Scientific Debriefings, 1962-1963”), NASA-UAP-D016 and D017 (“Preliminary Gemini 4 Crew Debriefing”, Parts 1 and 2, 1965), NASA-UAP-D018 (“Gemini 4 Experiment Debriefing”, 1967), NASA-UAP-D019 and D020 (“Gemini 5 Technical Debriefing”, Parts 1 and 2, 1965), NASA-UAP-D021 (“Gemini 7 Technical Debriefing”, 1965), and NASA-UAP-D022 (“Gemini 9 Debriefing”, 1966). All are National Aeronautics and Space Administration debriefing transcripts, documents from the U.S. Department of War’s PURSUE Release 03, published at war.gov/ufo, cleared 12 June 2026.
Why this one is worth your time
When a release contains “astronaut debriefings”, the temptation is to read them for the sighting and skip the rest. These eight files reward the opposite approach. They are long, cleanly typed transcripts of crews being walked through their missions hour by hour: powered flight, systems, experiments, food, sleep, re-entry. The material that touches on objects and lights is a small set of specific passages inside that routine, and in most of those passages the crews are naming what they are looking at, their own spent booster, a deployed target pod, tracked satellites, a planned re-entry. This briefing locates those passages and records what each one says, so the anomalous and the accounted-for can be told apart on the page rather than blurred together.
What the documents say
The eight files are debriefing transcripts, the structured interviews conducted after a flight in which the crew and NASA staff go through the mission in sequence. The bulk of every file is routine. The UAP-relevant content is a handful of passages, mostly inside the sections the transcripts themselves head “Visual Sightings”.
Most of the content is routine mission debriefing. Across the Gemini 4, 5, 7 and 9 transcripts the crews cover guidance, staging, fuel, communications, experiments, geography and landing. The Gemini 9 file (D022) and the Gemini 5 experiment paperwork (much of D019) carry no anomalous-observation content at all. The Gemini 4 experiment debriefing (D018) is an experiments review; its one use of the word “unidentified” refers to a hatch-closing problem, not an object. The files are catalogued here because UAP-relevant passages sit inside them, not because the transcripts as a whole are about UAP.
The Mercury scientific debriefings (D015). This file is a NASA scientific debriefing memorandum from 1962-63, centred on John H. Glenn’s observations during the MA-6 Mercury flight, including the luminous particles he reported, the “fireflies”. The document records NASA’s own discussion of what they were. In its analysis the memorandum states that, from the consistency of Glenn’s observations across three orbits, the luminous particles were not extraterrestrial but were particles associated with the spacecraft or its booster. The file is a degraded scan and the body text is not cleanly legible throughout; see the quote note below.
Gemini 4: the station-keeping booster and its lights (D016, D017). Much of the Gemini 4 visual material concerns the crew’s attempt to station-keep with their own spent Titan booster. James McDivitt and Edward White describe a “fireflies” particle field, fuel vapour and debris shed from the booster and spacecraft, lit by the sun, and two flashing lights on the booster that McDivitt used to judge range and closing rate. They name all of this. The booster, the particles and the lights are discussed as known objects throughout.
Gemini 4: the lights “those two times at night” (D017). Inside the Visual Sightings section of Part 2, McDivitt raises a separate phenomenon: “Why don’t I discuss that thing that I saw those two times at night.” White confirms he saw it too. As the transcript records it, the two men then describe it as parallel running lines of light radiating up from the earth toward them, curtain-like, resembling the Aurora Borealis, in motion and wiggling, seen on two occasions, possibly near Australia. The crew debate whether it sat in or below the air-glow layer and do not converge on a single account. McDivitt notes he took photographs of it. The transcript records the discussion; it does not record a conclusion about what the phenomenon was.
Gemini 5: tracked targets and one point they could not place (D019, D020). The Gemini 5 visual sightings (D020) again centre on identified objects: the spent booster, the Rendezvous Evaluation Pod (REP) the crew themselves deployed, and the search for scheduled satellites, which Gordon Cooper and Charles Conrad say they mostly could not find without inertial-platform pointing. In one passage Cooper records a single point they saw in drifting flight and could not place, saying they “didn’t have time to identify it” and “never could identify it”, and that he did not know whether it was a satellite. Elsewhere, on re-entry, the crew identify a burning object behind them as their own jettisoned retropack.
Gemini 7: man-made objects, named (D021). The Gemini 7 technical debriefing is the fullest of the visual-sightings sections. Frank Borman and James Lovell catalogue what the transcript heads “man-made objects”: their spent booster, kept in sight across several orbits by its flashing light; Spacecraft 6, acquired on the rendezvous; a Minuteman re-entry the crew say arrived at the predicted time and place and that looked like a meteorite; and two satellites in polar orbits, on which the crew took infrared readings and photographs, and which Lovell describes as “just points of light”. During the booster station-keeping the crew note two points on the engine skirt that “may have been shadows cast off the booster”. Across this section the crew attribute each object they discuss to a known source.
On the famous Gemini 7 “bogey”. The Gemini 7 air-to-ground “bogey” exchange of 4 December 1965, the single most cited early astronaut sighting, is not in this technical debriefing transcript. It appears in a separate file, the NASA Public Affairs Office release commentary covered in Release 01 (see “Where the case connects”). This R03 file is the later, post-mission technical debriefing of the same flight, and it does not contain the word “bogey”.
What the documents do not say
They do not, in most of the relevant passages, leave the object open: where the crews discuss an object they have placed, the booster, the REP, Spacecraft 6, the Minuteman re-entry, the tracked satellites, the retropack, the transcript records them naming it.
Where an observation is left unresolved, the file says so in the crew’s own terms and stops there. The Gemini 4 “thing I saw those two times at night” (D017) is described but not concluded; the Gemini 5 unplaced point (D020) is recorded as one the crew “never could identify”, with no follow-up in the transcript. Neither file states what the observation was.
They do not contain the Gemini 7 “bogey” exchange; that is a different document in Release 01.
The Mercury debriefing memorandum (D015) is a degraded scan. Its analysis of Glenn’s particles is legible in substance, but the file does not read cleanly throughout, and this briefing does not quote its body verbatim.
These are NASA’s own internal debriefing transcripts. They record what crews said in debriefing and, where present, NASA’s own discussion. They do not adjudicate any sighting beyond what the participants themselves say in the room.
From the record
GEMINI VII TECHNICAL DEBRIEFING Title page, NASA-UAP-D021
Man-made objects in orbit. Gemini 5 Technical Debriefing, Part 2 (NASA-UAP-D020), Visual Sightings
They were just points of light. James Lovell on the two satellites tracked from Gemini 7 (NASA-UAP-D021)
may have been shadows cast off the booster. Frank Borman on two points seen on the booster engine skirt during station-keeping, Gemini 7 (NASA-UAP-D021)
Yes , I saw it too , so you weren ’ t seeing things . Edward White confirming McDivitt’s account of the phenomenon “those two times at night”, Gemini 4 (NASA-UAP-D017)
never could identify it. Gordon Cooper on a single point seen in drifting flight, Gemini 5 (NASA-UAP-D020)
Where the case connects
This cluster sits directly alongside Release 01’s Briefing 13, the Gemini 7 “bogey” (gemini-7-bogey). That briefing covers NASA-UAP-D3, the Public Affairs Office release commentary, the air-to-ground audio in which Borman radioed “a bogey at ten o’clock high” and the crew sorted the booster, a field of particles and a third unidentified object in real time. This R03 briefing covers the fuller set of post-mission technical and scientific debriefings from the same era. The two are different document types from the same programme: the Release 01 file is the in-flight audio; these R03 files are the structured debriefings recorded after the crews returned.
The same observation recurs across both: experienced crews describing their own spacecraft hardware and debris. The Gemini 4 “fireflies” and shed booster particles, the Gemini 5 REP, and Gemini 7’s flashing-light booster and “trillions of particles” (Lovell, in the Release 01 audio) are the same family of object that the deliberately sceptical NASA briefing in Release 01 treats. Where these debriefings record a crew naming what they saw, they name spacecraft hardware, tracked satellites or planned events.
The files also leave two threads open as neutral facts. The Gemini 4 “thing I saw those two times at night” (D017) is described but not resolved in the transcript, and the single Gemini 5 point Cooper says they “never could identify” (D020) is left unfollowed. Any later release that pairs these debriefings with the mission photography McDivitt mentions, with the voice tapes the crews refer to, or with a NASA assessment of either observation, lands in this series when it does.
Read it yourself
NASA-UAP-D015 through D022, the NASA astronaut scientific and crew debriefing transcripts, are hosted at war.gov in PURSUE Release 03.
Read the files. Decide for yourself.
References and further reading
- NASA-UAP-D015, “Astronaut Scientific Debriefings, 1962-1963”, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D016, “Preliminary Gemini 4 Crew Debriefing”, Part 1, 1965, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D017, “Preliminary Gemini 4 Crew Debriefing”, Part 2, 1965, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D018, “Gemini 4 Experiment Debriefing”, 1967, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D019, “Gemini 5 Technical Debriefing”, Part 1, 1965, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D020, “Gemini 5 Technical Debriefing”, Part 2, 1965, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D021, “Gemini 7 Technical Debriefing”, 1965, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- NASA-UAP-D022, “Gemini 9 Debriefing”, 1966, PURSUE Release 03, U.S. Department of War, war.gov/ufo
- Presidential Unsealing and Reporting System for UAP Encounters, U.S. Department of War, war.gov/ufo
- AARO UAP Records, All-domain Anomaly Resolution Office, aaro.mil/UAP-Records
- Signals from the Periphery, Release 01 Briefing 13, the Gemini 7 “bogey” (gemini-7-bogey), on NASA-UAP-D3, the air-to-ground release commentary