Apollo 17 Commander Eugene Cernan, the last human to leave the surface of the moon in the 20th century, dies at the age of 82. One of the members of NASA’s second astronaut class, recruited in 1963 to take part in the Gemini program, Cernan first flew into space aboard Gemini 9 in 1966, a mission in which he became the second American spacewalker, though his assigned tasks outside the Gemini spacecraft proved to be dangerously exhausting. His second flight, as the lunar module pilot for Apollo 10, saw him flying a lunar lander to within miles of the moon’s surface in May 1969, a dress rehearsal for the upcoming Apollo 11 mission. He commanded the final Apollo moon landing mission, Apollo 17, in December 1972, where he earned the title of “last man on the moon” by being the last astronaut to leave the lunar surface to re-enter the Apollo 17 lander. He later wrote an autobiography about his spaceflight experiences, and was frequently outspoken about his disappointment that no one walked on the moon again in his lifetime.