"This image shows a possible vision of the surface of Titan, based on current understanding of data from the Cassini-Huygens mission. The scene is dark -- the clouds are thick on Titan, so little light gets through, and of course the Sun is 10 times further away than it is from Earth. Rivers of hydrocarbons are seen, as well as hydrocarbon rain. I started the artwork with the landscape software Terragen. The sky came from a mixture of photography, the 3D software Bryce, and Photoshop. The rest of the image was hand-painted in Photoshop using a graphics tablet."