Apollo 11 astronaut Michael Collins died at the moment. He was 90. When Neil Armstrong and Buzz Aldrin boarded the lunar module Eagle for the historic Moon touchdown on July 20, 1969, Collins piloted within the Apollo 11 spacecraft Columbia because it orbited the Moon.
From The New York Times:
Colonel Collins was significantly frightened in regards to the second when the lunar module was to blast off from the moon to dock with Columbia for the journey again to Earth. He knew that if the lander’s ascent engine malfunctioned, Mr. Armstrong and Colonel Aldrin is likely to be stranded on the lunar floor or be despatched right into a wild orbit.
“What occurs in the event that they veer this manner, that method, the opposite method?” Colonel Collins remarked 50 years later, noting that he had carried a packet round his neck containing 18 contingency plans for rescuing his crewmates.