Astronomy

[EddieMcD]

http://www.shatters.net/celestia/

It's a program called Celestia. It's prettymuch a 3D simulator of the universe. While it's not the best at seeing where things are from Earth's point of view (although I have a couple of programs that do. PM me if you want them), the fact that you can go from planet to planet, sun to sun, visit Haley's Comet, and five seconds later hit Proxima makes this program well worth at least a try. There are even extras you can download (just Google it) to add whatever may be missing (I found a place with the entire Messier Catalog to add on). One word of warning, don't run Celestia with anything else going in the background. It's a resourse hog. But a fun one at that.