218 light-years away in the constellation Lyra, are two planets unlike any in our solar system. Astronomers think that a significant fraction of their volume should be made of something lighter than rock but heavier than hydrogen or helium: water. https://go.nasa.gov/41BRXNC #NASAExoplanets
A team led by researchers at the University of Montreal has found evidence that two exoplanets orbiting a red dwarf star are "water worlds," where water makes up a large fraction of the entire planet.
