Buzz Aldrin while Command Module Pilot Michael Collins remained in lunar orbit. A Presbyterian elder, Aldrin became the first person to hold a religious ceremony on the Moon when he privately took communion. Upon leaving NASA in 1971, he became Commandant of the U.S. Air Force Test Pilot School. He retired from the Air Force in 1972, after 21 years of service. His autobiographies "Return to Earth," (1973) and "Magnificent Desolation" (2009), recount his struggles with clinical depression and alcoholism in the years after leaving NASA. He continued to advocate for space exploration, particularly a manned mission to Mars, and developed the
Buzz Aldrin NASA's Astronaut Group 2 was selected in 1962 was rejected on the ground that he was not a test pilot. He was aware of the requirement, and asked for it to be waived, but this request was turned down. On May 15, 1963, NASA announced another round of selections. This time requirement was that applicants have either test pilot experience or 1,000 hours flying time in jet aircraft, and Aldrin had over 2,500 hours of flying time, of which 2,200 was in jets. His selection as one of fourteen members of NASA's Astronaut Group 3, was publicly announced on October