pluto (dwarf planet)

Astronomer Mike Brown describes how his search for a tenth planet, Eris, a planet more massive than Pluto, led to the demotion of Pluto to a dwarf planet.

Examines the discovery of Pluto, explores its presence in American culture, and discusses the reactions of people after it was demoted from a planet to a dwarf planet.

Chronicles changes in the definition of "planet" from ancient Greece forward, discussing such topics as the discoveries of Uranus, Neptune, the Kuiper Belt, and extrasolar planets, and examines the question of Pluto's planet status.

Text and pictures describe the planet Pluto and how astronomers hunt for new planets.

Provides the history of the small, icy world of Pluto from its discovery and naming to its recent reclassification, and explains how scientists organize and class our solar system as they gain new insights into how it works and what types of things exist within it.

Briefly describes the discovery, surface features, orbit, moon, and efforts to study the planet Pluto.

Discusses the surface features, atmosphere, orbit, moon, discovery, and exploration of the planet Pluto.

Describes the dwarf planet Pluto, including its history, its composition, and its role in the solar system.

Explains Pluto's reassignment on August 24, 2006, from planet to dwarf planet. Includes illustrations.

"Introduction to Neptune and the distant dwarf planets, providing to primary and intermediate grade students information on their features and exploration. Includes fun facts, glossary, resource list and index"--Provided by publisher.