http://www.youtube.com/watch?v=vnRiGfVvqqQ

This is a video on Comets and Meteors by Bill Nye the Science Guy.  I've always loved his shows and how he explains everything.  It was really cool to listen to how he described.  Especially hearing facts from the "Tickle Me Meteorite".  It was very amusing.  As a class we actually did one of the projects, drawing an ellipse.