We were at the Ontario Science Centre and watched the show on planents and our universe. I saw this odd looking projector. At the end of the show, I asked the nice lady who were giving the show what it was. She said this projector is used to project stars and other objects into a dome, creating a very life like night sky. This projector has many lenses all around its "head" but only a single light source, according to the lady show guide. This projector is controlled by the computer.