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,
Celebrate the Century September 1999. Denomination: 33¢ No of stamps in sheet: 15 The stamps: Background image: Astronaut Buzz Aldrin sets up seismic equipment to record lunar tremors. Intaglio stamp: Buzz Aldrin's . Title: "Bicentennial, Watergate, and Earth Day". Date of issue: 18 November 1999. Denomination: 33¢ No of stamps in sheet: 15 The stamps: Background image: Ships gather in New York Harbor under the Statue of Liberty to take part in Bicentennial celebrations, July 4, 1976, marked the 200th birthday of the United States. Intaglio stamp: Videocassette recorder. On the occasion of the unveiling of the Boeing 747 stamp by the USPS,