UAP events in 1971

The Apollo tapes: crews describing the flashes they saw with their eyes closed

PURSUE Release 04 publishes four audio segments — two from the Apollo 14 post-mission crew debriefing (February 18, 1971) and two from the Apollo 17 crew medical debriefing (December 21, 1972) — in which astronauts and their debriefers discuss the 'light flash phenomena': brief flashes of light some Apollo crews reported seeing with their eyes closed in flight. The phenomenon was unexplained at the time; it is now understood as high-energy cosmic rays passing through the retina or optic nerve. PURSUE Release 02 previously published the related November 1969 Apollo 12 medical debrief on the same subject.