Describes the discovery of Pluto, the ninth planet, what has been learned about it, and the current controversy over whether it is a planet at all.
- ISBN10 0761414045
- ISBN13 9780761414049
- Publish Date 1 October 2002
- Publish Status Active
- Publish Country US
- Imprint Benchmark Books
- Format Hardcover (Library Binding)
- Pages 64
- Language English