Describes the planet Jupiter and its surface features, atmosphere, rotation and orbit, moons, and more.

Discusses the orbit, atmosphere, rings, moons, surface features, exploration, and other aspects of the planet Saturn.

Presents information on Mercury, the planet closest to the sun, as it was photographed by the U.S. spacecraft, Mariner 10. Includes a glossary and "Mercury Quick Facts."

Presents information on the different types of celestial matter known as asteroids, comets, and meteors and on what scientists learned from the impact of a comet on the surface of Jupiter.

Discusses the rotation, interior, surface features, atmosphere, and exploration of the Sun, including solar wind and the Sun's place in the solar system.