Eugene Andrew Cernan was an American astronaut, naval aviator, electrical engineer, aeronautical engineer, and fighter pilot. During the Apollo 17 mission, Cernan became the eleventh person to walk on the Moon. As he re-entered the Apollo Lunar Module after Harrison Schmitt on their third and final lunar excursion, he is the last person to walk on the Moon as of 2021. Before becoming an astronaut, Cernan graduated with a Bachelor of Science degree in Electrical Engineering from Purdue University and joined the U.S. Navy. After flight training, he received his naval aviator wings and served as a fighter pilot. In 1963 he received a Master of Science degree in Aeronautical Engineering from the U.S. Naval Postgraduate School. Achieving the rank of captain, he retired from the Navy in 1976.