S72-55166 (12 Dec. 1972) --- Scientist-astronaut Harrison H. Schmitt loses his balance and heads for a fall during the second Apollo 17 extravehicular activity (EVA) at the Taurus-Littrow landing site, as seen in this black and white reproduction taken from a color television transmission made by the color RCA TV camera mounted on the Lunar Roving Vehicle. Schmitt is lunar module pilot of the Apollo 17 lunar landing mission. Astronaut Ronald E. Evans, command module pilot, remained with Apollo 17 Command and Service Modules in lunar orbit while astronauts Schmitt and Eugene A. Cernan, commander, descended in the Lunar Module "Challenger" to explore the moon.