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5/22/2019 3:28:04 PM

Scientists Find Hint Of A Neptune-Sized Hidden Planet In Our Solar System

scientists find hint of a neptune sized hidden planet in our solar system

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.

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