While I try and finish yet another complex post, why don't you keep your hands busy with two awesome paper models? In theory those two models, of Copernican System and Ptolemaic System, are for kids learn more about the history of science, and the universe, but who cares? I loved them!

Download the PDFs The Ptolemaic System and The Copernican System at the very cool Science Museum of Canon, where there are many other models about universe and nature, including dinosaurs for Calvins wannabe. Just in case that you still having doubts about Ptolemy and Copernicus theories, Wikipedia will help you: The Copernican heliocentric system and Ptolemy, or Copernicus Pages, from Department of History and Philosophy of Science. Or go even far and read the The Problem of the Planets (De revolutionibus orbium coelestium) in Latin, or this translation of it.