Close Call: Apollo 11 Crew's Brush with Disaster during Re-Entry
During the Apollo 11 mission, an anomaly occurred during the crew's return to Earth, where the Service Module was supposed to maneuver away from the Command Module before re-entry. However, the Service Module came dangerously close to the Command Module, increasing the risk of collision. The crew managed to make it back safely, but subsequent investigations revealed that Apollo 8 and Apollo 10 had experienced the same problem. NASA identified a controller issue as the cause of the anomaly and fixed it in time for Apollo 13.