Just another thing that I ran across on Discover magazine's homepage was this picture of an artist's concept of the surface of Titan, the Saturnian moon:

This is reminiscent of the short story arc in Warlord of Mars Dejah Thoris where she is abducted by Vampires from Titan and then taken there and later to Saturn. The Titan as depicted is much more like what we might think of as our own moon, and the surface of Saturn was shown to be rocks floating in liquid air. Funny then that the depiction of Saturn is completely off, but might actually have been realistic enough for Titan.