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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.

Describes what meteors and micrometeors are, and describes the different types of meteorites, including lunar and martian meteorites, and how meteorites form craters.

Explains how space shuttles work and how astronauts live and work in them.

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

Discusses the surface features, atmosphere, orbit, moons, rings, and exploration of the planet Uranus.

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

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

Presents information known about Saturn, its rings, and moons.

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 Venus, including its volcanoes, arachnoids, and pancake domes, as studied by U.S. and Soviet spacecraft. Includes a glossary and "Venus Quick Facts."