Unless a meteorite crashes into the moon, the footprints of all of the astronauts who have walked on the moon could stay on its surface forever. There is no wind to cover them with dust and no rain to wash them away. Beautiful full-color photographs and illustrations help illuminate the mysteries of The Moon including: - the moon's surface and its exploration by astronauts - the lunar cycle and eclipses - its effects on Earth - Neil Armstrong's famous first step on the moon - the probe Lunar Prospector, NASA's most recent mission to the moon