Neil Armstrong, the first man to walk on the moon has died at the age of 82, according to NBC News. Earlier this month Armstrong was recovering from a heart-bypass surgery to relieve blocked coronary arteries. Armstrong was the commander of the Apollo 11 mission and was the first human to set foot on the moon on July 20, 1969. After climbing down the stairs of the of the Apollo 11, he said “That’s one small step for a man, one giant leap for mankind.” Before that Armstrong flew combat missions during the Korean war and was a test pilot for a U.S. aeronautics agency that turned into NASA. After leaving NASA, Armstrong became a teacher at the University of Cincinnati in Ohio.