Iceworld

The world was cold. The crew of the spaceship could feel the chill in their bones even as they hung in orbit, fifty planetary diameters away. It was a frightening prospect, for even the rays from this system's sun were weak, lifeless; it seemed impossible that such a bleak and icy globe could ever have produced intelligent life ... or so it seemed to a race that breathed gaseous sulfur and drank molten copper chloride. For the world of ice was Earth!