Half Lava & Half Rock, 5 Cancri E Might Be The Weirdest Exoplanet Ever Discovered

March 31, 2016 7:41 AM

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Strange world is just 40 light years away.

A lava-loaded "super earth" called 55 Cancri e is twice the size of our own planet but eight times as dense. And it's so close to its star that a year lasts only 18 hours.

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