“No telescope has yet been able to spot it.”

Has anyone seen Planet Nine? Anyone?

#Space

Thu, Dec 20th, 2018 08:28 by capnasty NEWS

Quanta Magazine wants to know why the highly hypothesised Planet Nine believed to be floating beyond Neptune cannot be seen yet evidence of its existence keeps popping up.

The first evidence for Planet Nine surfaced in 2014, when the discovery of a planetoid revealed that a handful of mini ice-worlds beyond the Kuiper belt followed suspiciously similar paths around the sun. “If things are in the same orbit, then something’s pushing them,” said Scott Sheppard, an astronomer at the Carnegie Institution for Science and the co-discoverer of the 2014 planetoid. Brown and his colleague Konstantin Batygin made a specific prediction two years later: The “perturber,” as they call it, should weigh between 5 and 20 Earth masses and follow an elliptical orbit hundreds or even 1,000 times more distant from the sun than Earth.

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