Buzz Aldrin on July 20, Aldrin and Armstrong entered "Eagle", and began the final preparations for lunar descent. At 17:44:00 "Eagle" separated from the "Columbia". Collins, alone aboard "Columbia", inspected "Eagle" as it pirouetted before him to ensure the craft was not damaged, and that the landing gear was correctly deployed. Throughout the descent, Aldrin called out navigation data to Armstrong, who was busy piloting the "Eagle". Five minutes into the descent burn, and above the surface of the Moon, the LM guidance computer (LGC) distracted the crew with the first of several unexpected alarms that indicated that it could not complete
Buzz Aldrin first to McMurdo Station and from there to Christchurch, New Zealand. At 86 years of age, Aldrin's visit made him the oldest person to ever reach the South Pole. He had previously traveled to the North Pole in 1998. After leaving NASA, Aldrin continued to advocate for space exploration. In 1985 he joined the University of North Dakota (UND)'s College of Aerospace Sciences (now the John D. Odegard School of Aerospace Sciences) at the invitation of John D. Odegard, the dean of the college at time. Aldrin helped to develop UND's Space Studies program and brought Dr. David Webb from