The idea of a water world, a planet covered by water, has fascinated both scientists and artists for centuries. For scientists, a water world is a planet that has a great deal of water on its surface (or beneath the surface). Some studies have suggested that exoplanets with oceans are common in the Milky Way, but we haven’t really been able to find them.
This is where GJ 1,214 b comes in.
This planet (also called Gliese 1,214 b or Enaiposha) is 48 lightyears away from Earth. It’s a “sub Neptune” or “mini Neptune.” Mini Neptunes are a type of planet less massive than Neptune but resembling Neptune in general structure and in that they lack a thick hydrogen-helium atmosphere.
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