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The original was posted on /r/todayilearned by /u/whysoblue91 on 2026-07-21 15:08:49+00:00.

Original Title: TIL that after the Apollo 11 moonwalk, the astronauts accidentally broke the engine switch needed to launch them back to Earth. Buzz Aldrin saved the mission by jamming a felt-tip pen into the broken circuit breaker, allowing them to return home.