Lunar rover

Lunar rover

Fig. 2.1 . The battery-powered lunar rovers, used in the last three Apollo missions, could carry two astronauts and all their equipment for kilometers across the lunar surface. The astronauts deployed instruments and returned rocks to the lunar module, which carried them back to their orbiting command module while the rover remained on the Moon. Because there is no substantial atmosphere, water or weather on the Moon, both the rover and the footprints in the lunar soil may last for millions of years. By that time micrometeorites will have pitted the rover and erased the footprints. (Courtesy of NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University