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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 to a possible laser. That seemed to be the best possible explanation until we were coming back in the command module approaching the Earth and were able to observe something that gave about the same appearance. When putting the monocular on the light source, it appeared as though it was the reflection of the Sun from a relatively smooth body of water such as a lake. I think we've revised our initial conclusion as to what the source of that light was that we saw coming from the Earth. If no one owns up to having beamed the laser toward the Moon at that time, it was more probably a reflection off a lake. I still think it's an unusual phenomenon, at that distance, to see so bright a source of light. In the film, it didn't appear as though this was going to show up at all. The Earth was too bright.
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