Inside outer space

Presents facts about the rocky planets, Mercury, Venus, Earth, and Mars, the four planets closest to the Sun.

Presents facts about the gas giants, Jupiter, Saturn, Uranus, and Neptune, the four planets farthest from the Sun.

Explains what dwarf planets are and where they are located in the solar system, and describes the characteristics of known dwarf planets, including Pluto, Eris, and Ceres.