The Other Oceans in the Solar System
Channel: U.S. Naval Institute
Date: 2023-07-13

There are nine “oceans” in the solar system; however, Earth is the only planet with liquid water on its surface. The other oceans are found under thick covers of surface ice. If both liquid and frozen water are counted, Earth ranks fifth in volume of its oceans. Most of the solar system’s oceans are on the satellites (moons) of planets, although some research suggests that Jupiter and Saturn may have the largest oceans.