Alright, I'll play, and kill our dial-up friends.

This is a picture of Mira, one of my favorite star systems. (Addon)

This is Our Jupiter, beautifully rendered in Celestia. In the foreground is Europa, well-known for the possibility of liquid water (and some say life) to exist beneath it's surface.

This is the Sun... Rendered with R. Thorvaldsen's wonderful addon. (Addon)

This shows a very small part of the creative possibilties of Celestia. This is Pei, a planet in a system I created, called Vita Cancri (a pun on Beta, Life, and Cancer all at the same time). All that I used to create this image was a few tries in paint, notepad and and celestia. Viola. (You cannot get this unless you request it from me).
EDIT: The mess you see in the obove images is due to compression.