He was born in Montclair, New Jersey.
A West Point graduate, Aldrin flew 66 combat missions in the Korean War before going to MIT, where he earned a doctorate in astronautics. He was selected as an astronaut in 1963; on the Gemini 12 orbital mission, he set a record for extra-vehicular activity. He is most famous for walking on the moon.
On 9th September 2002 Aldrin assaulted Bart Sibrel, a documentary maker who claimed the moon landings were faked. California authorities decided against prosecution.