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News Release Archive:

News Release 35 of 218

February 21, 2012 09:00 AM (EST)

News Release Number: STScI-2012-13

NASA's Hubble Reveals a New Class of Extrasolar Planet

February 21, 2012: Observations of the extrasolar planet GJ1214b by NASA's Hubble Space Telescope have come up with a new class of planet, a waterworld enshrouded by a thick, steamy atmosphere. It's smaller than Uranus but larger than Earth. A paper reporting these results has been accepted for publication in The Astrophysical Journal and is available online.

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

Science Credit: NASA, ESA, and Z. Berta (Harvard-Smithsonian Center for Astrophysics)