Planetary exploration in the 1990's

Planned and proposed near-term missions for planetary exploration are outlined. The history of planetary missions is reviewed and the characteristics of proposed future missions are discussed. The missions include the Magellan mission to map Venus, the Mars Observer mission, the Lunar Geochemical Orbiter, the Lunar Observer mission, the second and third phases of the Venus Orbiter, the future of the Voyager mission, and the Galileo mission to study the rings and satellites of Jupiter. Other missions include the Ulysses solar polar mission, the Cassini Saturn and Titan probes, the Comet Rendezvous Asteroid Flyby mission, the Mars Sample Return Mission, and the Comet Nucleus Sample Return.