The demonstrations below have been used at our Open Houses and at the 2001 SEE ASU event. They have been compiled from several sources including The Universe at your Fingertips: An Astronomy Activity and Resource Notebook, a publication of PROJECT ASTRO through the Astronomical Society of the Pacific (Click here for a direct link to Universe at your Fingertips.)

We also purchase our posters from the Astronomical Society of the Pacific through their catalog, available online at the AstroShop.