Buzz Aldrin shot down two MiG-15 aircraft. After earning a Sc.D. degree in astronautics from the Massachusetts Institute of Technology, Aldrin was selected as a member of NASA's Astronaut Group 3, making him the first astronaut with a doctoral degree. His doctoral thesis was "Line-of-Sight Guidance Techniques for Manned Orbital Rendezvous", earning him the nickname "Dr. Rendezvous" from fellow astronauts. His first space flight was Gemini 12 during which he spent over five hours on extravehicular activity (EVA) outside the spacecraft. Aldrin set foot on the Moon at 03:15:16 on July 21, 1969 (UTC), nine minutes after Armstrong first touched the surface,
Buzz Aldrin sighting. Aldrin confirmed that there was no such sighting of anything deemed extraterrestrial and said they were, and are, "99.9 percent" sure that the object was the detached panel. In an interview with the Science Channel, Aldrin mentioned seeing unidentified objects, but according to Aldrin his words had been taken out of context. He made a request to the Science Channel to clarify to viewers that he did not see alien spacecraft but was refused. In December 2016, Aldrin was part of a tourist group visiting the Amundsen–Scott South Pole Station in Antarctica when he fell ill and was evacuated,