Originally posted on Google+ · January 20, 2016
Ars Technica goes into more depth on this:
http://arstechnica.com/science/2016/01/scientist-who-killed-pluto-now-concludes-there-is-a-ninth-major-planet/
As does Ethan Siegel:
http://www.forbes.com/sites/startswithabang/2016/01/20/not-so-fast-why-there-likely-isnt-a-large-planet-beyond-pluto/#2715e4857a0b71eb65e15af4
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Ars Technica goes into more depth on this:
http://arstechnica.com/science/2016/01/scientist-who-killed-pluto-now-concludes-there-is-a-ninth-major-planet/
As does Ethan Siegel:
http://www.forbes.com/sites/startswithabang/2016/01/20/not-so-fast-why-there-likely-isnt-a-large-planet-beyond-pluto/#2715e4857a0b71eb65e15af4