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Astronomers have discovered a 9th planet in our solar system that's 10 times the mass of Earth

Emmanuel Ocbazghi,Jessica OrwigJan 21, 2016, 03:32 IST

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Astronomers say they've discovered a ninth planet 200 times farther from the Sun than Earth.

Produced by Emmanuel Ocbazghi. Original Reporting by Jessica Orwig.

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