Solar system has another planet

Lafayette, La. (UPI) Feb 16, 2011 A planet, possibly four times the mass of Jupiter and with a lunar system, could be lurking in our solar system’s outermost area, two U.S. scientists theorize. University of Louisiana researchers said if “Tyche” exists, the confirmed number of planets in our solar system would return to nine, with Pluto remaining a dwarf planet, reported Wednesday. Astrophysicis


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