Selected by NASA in 1963 into the third group of astronauts, Buzz Aldrin was the first with a doctorate and became known as “Dr. Rendezvous.” The docking and rendezvous techniques he devised for spacecraft in Earth and lunar orbit became critical to the success of the Gemini and Apollo programs, and are still used today. He pioneered underwater training techniques to simulate spacewalking. In 1966 on the Gemini 12 orbital mission, Buzz performed the world’s first successful spacewalk - extra-vehicular activity (EVA), and set a new EVA record of 5 1⁄2 hours. During that mission he also took the first ‘selfie’ in space.
On July 20, 1969, Buzz and Neil Armstrong made their historic Apollo 11 moonwalk, becoming the first two humans to set foot on another world. An estimated 600 million people - at that time, the world's largest television audience in history - witnessed this unprecedented heroic endeavor. Read more about Buzz here.