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A new 9th planet for the solar system?

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Published on Jan 20, 2016

Observations of the orbits of six small objects have led researchers to propose a very large 9th planet--100s of astronomical units (AU) away from the sun. Far enough away that this Neptune-sized planet takes ~15,000 years to complete one orbit. Read more: http://scim.ag/1Ownvti

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