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Mysterious Planet Nine may Explain Solar System’s 'Wobble'

The mysterious Planet Nine could be responsible for the slight tilt of our solar system relative to the sun, new research suggests. Writing in the Astrophysical Journal, researchers from the California Institute of Technology say the hypothetical massive planet at the edge of the solar system could be the reason the planets orbit at a six-degree slant relative to the sun. "Because Planet Nine is so massive and has an orbit tilted compared to the other planets, the solar system has...

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