Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

A telescope has discovered a new world on the edge of the Milky Way – potentially confirming the ‘Planet X’ theory. Beyond ...

A telescope has discovered a new world on the edge of the Milky Way – potentially confirming the ‘Planet X’ theory. Beyond Neptune, a smaller ‘ninth’ planet has been identified in the Kuiper Belt. If ...

This new object is another with a very elliptical orbit, but it is more stable than 2017 OF201, which suggests that no large planet, including a hypothetical Planet Nine, is significantly affecting ...

This new object is another with a very elliptical orbit, but it is stabler than 2017 OF201, which suggests that no large planet, including a hypothetical planet nine, is significantly affecting its ...

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