The document summarizes information about the planets in our solar system. It describes the four inner, terrestrial planets - Mercury, Venus, Earth, and Mars - and their small, rocky compositions. It then discusses the four outer, gas giant planets - Jupiter, Saturn, Uranus, and Neptune - noting their large sizes and gaseous compositions. It also mentions other bodies like asteroids, Pluto, and the Kuiper Belt.

2. The Inner Planets

19. http://photojournal.jpl.nasa.gov/jpegMod/PIA10249_modest.jpg February 28, 2007 New Horizon Image

20. Jupiter 2.28.07

33. Inertia