An impression of the green ice giant planet, Uranus, seen from the surface of its innermost substantial moon, the fractured Miranda. Uranus is the seventh planet in order of distance from the Sun, orbiting at an average distance of 2.85 billion km. It is unusual in that it has a very pale, almost featureless atmosphere, and an axial tilt close to 100 degrees. Miranda's odd surface - including the highest cliff in the known Solar System - suggests that the world was broken apart in a collision and later reassembled.