New evidence in support of the Planet Nine hypothesis - Spanish astronomers have used a novel technique to analyse the orbits of the so-called extreme trans-Neptunian objects, to suggest the existence of a planet located at a distance between 300 to 400 times the Earth-Sun separation.

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New evidence in support of the Planet Nine hypothesis - Spanish astronomers have used a novel technique to analyse the orbits of the so-called extreme trans-Neptunian objects, to suggest the existence of a planet located at a distance between 300 to 400 times the Earth-Sun separation.