WHAT CAN GO HERE:
* Text for a sub-menu.
(for instance, if Link 1 is "Animals," the user can click it and then see a list of animals listed down this column).
* Images to represent the page.
* Quick facts to support the main body of the page.
Planets
http://www.lunarplanner.com/Images/Mars2003/Mars.jpg
Mars
Jupiter http://sciencedude.freedomblogging.com/files/2008/08/jupiter.jpg