Ever since we kicked Pluto out of the planet club in 2006, the solar system has been known to house eight planets. But in the last few years there's been talk of that tally rising back up to nine, because evidence suggests there's a gigantic rocky world lurking on the fringes. The astronomers who originally proposed the Planet Nine hypothesis have now published two more papers analyzing the case, highlighting a few new clues.
.. Continue Reading New clues emerge in the hunt for Planet NineCategory: Space
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from New Atlas (Gizmag) https://ift.tt/2IFzyex
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