I have a feeling many people will like that update :) Mostly screenshots. I've implemented planets as seen through the atmosphere of another planet. It works by combining the extinction and in-scattering equations separately with the color buffer. In other words, it correctly blends the atmosphere seen through an atmosphere seen through a third atmosphere. It's still not perfect though; i still have to work seriously on the atmosphere at night time (it's still "opaque" right now, so it appears as a kind of black fog).