A waterworld, water world, water planet, ocean world, ocean planet, aquatic planet, or aquatic world was a type of planet that was predominantly covered in water. Examples of water worlds include Castilon, Glee Anselm, Kamino, Manaan, and Mon Cala. The phrase "water world" could also refer to a moon, such as the ice moon of Madurs. Environments were delicate on water worlds; Madurs was heavily polluted by an Imperial mining operation as waste swept into the water supply and artifically heated some of the water.
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