https://www.nbcnews.com/science/space/planet-nine-not-quite-astronomers-think-spotted-new-dwarf-planet-rcna210448
A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 OF201, was found by researchers at the Institute for Advanced Study…
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