16. Vast Amounts Of Water
Earth’s oceans may not be that unique. Three of Jupiter’s moons (Europa, Ganymede, and Callisto) and two of Saturn’s (Enceladus (pictured above) and Titan) are thought to have underwater seas Europa’s ocean may contain over twice the volume of water found on Earth. However, the most water ever discovered surrounds a black hole some 12 billion lightyears away This region contains vast amounts of water vapor, the equivalent of 140 trillion times the volume of water in Earth’s oceans.