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The only thing that Uranus and Earth likely have in common is that they orbit the barycenter of the Solar System in roughly-circular elliptical paths. In other respects, they could hardly be more different. Earth has a metallic core, a molten rock mantle, a thin solid crust largely covered with a thin layer of liquid water (frozen at the poles), and a 100-mile-deep atmosphere of mainly nitrogen and oxygen. It is located in a warm region relatively close to the Sun. Uranus has a molten rocky core smaller than the Earth and similar to the Earth's mantle; overlaid by a 12000-mile-deep ice mantle of hot dense ammonia, water, methane and sulfur compounds; and a 3000-mile-deep frigid atmosphere of mainly hydrogen and helium. At no point is there a solid surface. It receives very little solar energy. In case you are thinking that "ice" and "hot" in the same sentence might be a typo, be aware that the hot ammonia/water mantle at a temperature of several thousand degrees is indeed a slushy ice due to the tremendous pressure and density created by the 12-thousand mile depth of the ice mantle.

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