Color photos and diagrams fill this overview of Uranus, Neptune, and Pluto, which describes their features, formation, moons and rings, and the history of research on them. Also includes a glossary and further-reading list.
An exploration of Pluto and other dwarf planets that describes what a planet is and provides information about Pluto's moons, the Kuiper Belt, Eris, asteroid belts, Ceres, and more.