Original: Buzz Aldrin ( born Edwin Eugene Aldrin , Jr. , January 20 , 1930 ) is an engineer , retired United States Air Force pilot and astronaut who was the Lunar Module pilot on Apollo 11 , the first lunar landing .
Simplified: Colonel Edwin Eugene '' Buzz '' Aldrin , Jr. , Ph.D ( born January 20 , 1930 ) is an American pilot and astronaut .