Planet 9 probably doesn’t exist, new paper argues


Does the solar system have a big, dark ninth planet drifting somewhere far beyond the orbit of Neptune? 

Since 2016, many astronomers have said it’s possible, pointing to evidence for a large gravity source in deep solar space. But a new paper argues that this gravity source is nothing more than a statistical mirage, the consequence of where in the night sky astronomers point their telescopes. The first physical(CK) hint of this hypothetical Planet Nine was a group of space rocks with similar orbits that seemed to be clustered unusually close together. These dim, distant, hard-to-spot objects  orbit beyond Neptune and are known as “trans-Neptunian objects” (TNOs). 



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