Ever wondered how they create some of those awesome space photos of nebulas etc.? Some of them are simply rendered from files known as FITS files. These files hold a ton of data I guess and with the free plugin... you can create your own space masterpieces... though its a bit involved process to get something really dazzeling IMHO.
The plugin, example pics and more info can be found
here
have fun... I have yet to find time to whip any up myself but... its on my plate for sometime here soon