AS17-137-20910 (7-19 Dec. 1972) --- Earth (far distant background) is seen above a large lunar boulder (foreground) on the moon. The photo was taken with a handheld Hasselblad camera by the last two moon walkers in the Apollo Program. While astronauts Eugene A. Cernan, commander; and Harrison H. Schmitt, lunar module pilot, descended in the Lunar Module (LM) "Challenger" to explore the Taurus-Littrow region of the moon, astronaut Ronald E. Evans, command module pilot, remained with the Command and Service Modules (CSM) "America" in lunar orbit.