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This is the NASA Apollo 11 Technical Crew Debriefing dated July 31, 1969, prepared by the Mission Operations Branch, Flight Crew Support Division, and released by the U.S. Department of War. The confidential excerpts record Armstrong, Aldrin and Collins describing an unidentified bright L-shaped object seen about a day from the Moon, which they could not identify and suspected came from the spacecraft. They also describe light flashes inside the cabin and a bright light on Earth later attributed to reflection off a lake.
# CONFIDENTIAL ## 21.0 VISUAL SIGHTINGS ## ARMSTRONG Most of the items in Section 21, Visual Sightings, have been previously reported. ## 21.4 TRANSLUNAR AND TRANSEARTH FLIGHT ## ALDRIN There was only one minor observation returning from the Moon. Looking back at it, at a time after Mars had passed behind the Moon, there was one time period where I imagined that the image of Mars was coming from a region where it couldn't come from, because it was in a dark portion of the Moon. This obviously was an optical illusion of some sort. ARMSTRONG I suspect that it was, in fact, just immediately adjacent to the horizon. ALDRIN We must have looked at it immediately after it had come from the back side. ARMSTRONG Yes. ## 21.5 LUNAR ORBIT ALDRIN In lunar orbit, following ascent, we did note and mention to the ground that approaching CDH when the Earth came up above the lunar horizon, I observed what appeared to be a fairly bright light source which we tentatively ascribed CONFIDENTIAL
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