http://seds.lpl.arizona.edu/nineplanets/nineplanets/nineplanets.html
The Nine Planets is a 'multimedia tour' of the solar system written for beginning astronomy enthusiasts, with incredible archives of basic information about the planets. The 'tour' includes pictures, scientific facts, history, and a general description of each of the nine planets of the solar system, as well as their moons, with sound files and movie clips. Users will find a hypertext outline of the contents as well as appendices and glossaries of technical terms. Information about spacecraft and space exploration is also included.