It's a free program which is really cool. It lets you surf through space from planet to planet etc. Like Google Earth but then about the universe. I had it on my laptop a while back but can't find it anymore.
Btw check this docu. I've seen tons of docu's about the universe but this one is really easy to watch (for the space noob
) and quite amazing.
http://video.google.com/videoplay?do...62933253597628