"A brief description of planets, including what they are, where they are, and how they orbit around the sun"--Provided by publisher.

What is a planet? -- What are the eight planets like? -- Why isn't Pluto a planet? -- How big is the solar system? -- Do planets have years like we do on earth? -- How long is a day on Mars? -- Are there any more planets? -- Can you believe it? -- What do you think? -- Glossary -- Read more -- Internet sites -- Index.