In April 1972, he became the youngest person ever to walk on the Moon – a record he still holds to this day. Just three years prior, he served in a critical role as part of the Mission Control team for Apollo 11, and he was later a member of the backup crew for the ill-fated Apollo 13. But in the heyday of NASA’s lunar explorations, he would eventually get his own shot at walking on the moon. As we close in on the 50th anniversary of the flight of Apollo 16, we sat down with General Charlie Duke, lunar module pilot for this historic flight, to reminisce about his three-day excursion to earth’s farthest shore.