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,
Toy Story then Tempus from Morph, and eventually Buzz Lightyear (after astronaut Buzz Aldrin). Lightyear's design was modeled on the suits worn by Apollo astronauts as well as G.I. Joe action figures. In addition, the green and purple color scheme on Lightyear's suit was inspired by Lasseter and his wife, Nancy, whose favorite colors were green and purple respectively. Woody, the second character, was inspired by a Casper the Friendly Ghost doll that Lasseter had when he was a child. Originally, Woody was a ventriloquist's dummy with a pull-string (hence the name Woody). However, character designer Bud Luckey suggested that Woody could