Gemini 9 Debriefing, 1966

NASAIncident: June 3-6, 1966Low Earth Orbit86 MB

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.

Official file on war.gov Archived copy

The description is the government’s own, from war.gov/UFO, released on June 12, 2026. The Pentagon calls these unresolved cases — publishing a file does not mean it shows anything anomalous.

Gemini 9 Debriefing, 1966

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