As a little after-hours project, Rikard and I have been helping out a team who needed a "planetary evolution" display for some exhibit over in Europe. The idea is to evoke a sense of wonder at how many possible planets there are out there, and that they've been evolving over millions of years, etc. As a volunteer side project, we were only able to put a small portion of our time towards it, but I think it's come along nicely. You can check out a little video below showing a couple of the planets in the mix. It's a bit slow, but might make a nice screen saver. :)
Basically you're seeing Ardor3D's procedural texture generation, plus some atmosphere and bloom in GLSL with a little camera work thrown in. No sound, sorry.