Answer :
''EDWIN EUGENE ALDRIN JUNIOR'' was the second person to step on the moon followed by the APOLLO-11 mission commander ''NEIL ARMSTRONG'' took the historic first step. :)
Edwin Eugene Aldrin Jr was born in New Jersey in 1930 and was the second man to walk on the moon’s surface on July 20, 1969, just after his mission commander, Neil Armstrong, had taken the historic fBuzz Aldrin (born Edwin Eugene Aldrin, Jr., January 20, 1930) is an engineer and former American astronaut, and the second person to walk on the Moonirst step.