GJ1214b, shown in this artist's view, is a super-Earth orbiting a red dwarf star 40 light-years from Earth. New observations from NASA's Hubble Space Telescope show that it is a waterworld enshrouded by a thick, steamy atmosphere. GJ1214b represents a new type of planet, like nothing seen in our solar system or any other planetary system currently known. Read the full release at http://www.spacetelescope.org/news/heic1204/

Credit: NASA, ESA, and D. Aguilar (Harvard-Smithsonian Center for Astrophysics)
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