The Strangest Alien Planets

Wednesday, February 2, 2011 - 13:33 in Astronomy & Space

Among the more than 400 planets found beyond our solar system, there are volcanic Super Earths, gas giants that dwarf Jupiter, and worlds with multiple sunsets. Here are 15 (or 20) of the most incredible, starting with the very first alien world - 51 Pega

Read the whole article on Space.com

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