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 should. I have always said that Buzz was the far more photogenic of the crew." Aldrin entered "Eagle" first. With some difficulty they lifted film and two sample boxes containing of lunar surface material to the hatch using a flat cable pulley device. Armstrong reminded Aldrin of a bag of memorial items in his sleeve pocket, and Aldrin tossed the bag down. It contained a mission patch for the Apollo 1 flight that Ed White never flew due to his death in the fire; medallions commemorating Yuri Gagarin, the first man in space, and Vladimir Komarov, the first man to