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Become a Six Colors member to read exclusive posts, get our weekly podcast, join our community, and more!By Jason Snell for Yahoo Tech
Planet Nine? Evidence grows for big addition to solar system
A decade ago Mike Brown helped get Pluto demoted from a “planet” to a mere “dwarf planet.” Now the astronomer and one of his CalTech colleagues may have plotted the orbit of a new ninth planet in our solar system, dramatically larger than Pluto and much, much farther away.