Moon by the Soviet Union's Luna 2, an unmanned spacecraft. The United States' NASA Apollo program achieved the only manned lunar missions to date, beginning with the first manned orbital mission by Apollo 8 in 1968, and six manned landings between 1969 and 1972, with the first being Apollo 11. These missions returned lunar rocks which have been used to develop a geological understanding of the Moon's origin, internal structure, and the Moon's later history. Since the Apollo 17 mission in 1972, the Moon has been visited only by unmanned spacecraft. Both the Moon's natural prominence in the earthly sky and
Missile to the Moon accident during the trip to Luna. What the remaining four find waiting for them when they arrive on the Moon is well beyond their expectations: huge rock creatures, giant lunar spiders, and a cave-dwelling civilization made up of beautiful women. Two escaped convicts, Gary (Tommy Cook) and Lon (Gary Clarke), are discovered hiding aboard a rocket by scientist Dirk Green (Michael Whalen), who then forces them to pilot the spaceship to the Moon. Dirk, who is secretly a Moon man, wants to return home. Dirk's partner Steve Dayton (Richard Travis) and Steve's fiancée June (Cathy Downs) are accidentally trapped aboard