RELEASE 03 / NASA-UAP-D018

NASA-UAP-D018, Gemini 4 Experiment Debriefing, 1967

File ID: NASA-UAP-D018
Agency: NASA
Release: Release 03, 12 Jun 2026
Event date: June 3-7, 1965 (read as 3 Jun 1965 to 7 Jun 1965; precision: range)
Location: Low Earth Orbit
Type: PDF
Redactions: None flagged

The official record

Official summary, as published

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.

Named in this file

4 names

People, programs and institutions from The Legacy Program research board whose names appear in this file, found by exact spelling against a hand-checked list. A match says only that the file names them, not what part they play. People and programs lists every file that names each one.

Tier A Project Blue Book program
Named in page 39.
Public-facing USAF UFO program (1952-1969)
Tier A National Aeronautics and Space Administration institution
Named in the title and pages 1, 10, 21, 22, 23, 27, 33, 34 and 7 more.
Civil space agency; host of the 2023 UAP Independent Study Team
Tier A United States Air Force institution
Named in page 21.
Military department; original custodian of the UFO record and of the Roswell material
Tier B The Aerospace Corporation institution
Named in page 27.
Nonprofit operator of the Aerospace FFRDC for the US Space Force; El Segundo, CA; founded 1960

Our reading

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Download our saved copy (NASA-UAP-D018_Gemini-4_Experiment-Debriefing_1967.pdf)

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First seen 2026-10-26 22:48:21 UTC

153 MB (160,903,752 bytes)

SHA-256 5f073d6c4ae822a8213d56fbccef9d14a82e6b75bc318dbe2ccfe9c5945ddeee