Days before the 45th anniversary of the 1969 Apollo 11 moon landing, astronaut Buzz Aldrin explained his experience with a so-called UFO in an online discussion.

"On Apollo 11 in route to the Moon, I observed a light out the window that appeared to be moving alongside us," Aldrin said during a Reddit AMA (ask me anything) session. "There were many explanations of what that could be, other than other spacecraft from another country or another world — it was either the rocket we had separated from, or the 4 panels that moved away when we extracted the lander from the rocket and we were nose to nose with the two spacecraft. So in the close vicinity, moving away, were 4 panels. And I feel absolutely convinced that we were looking at the sun reflected off of one of these panels. Which one? I don't know. So technically, the definition could be 'unidentified.'"
Perfectly reasonable. 

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