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Episode 324: Another Planet?

Play Mar 17•4:37

Evidence may be mounting that either a brown dwarf star or a gas giant planet exists at the far reaches of the solar system -? way beyond even Pluto. Named Tyche, it could be four times the size of our largest know planet, Jupiter, and 15,000 times farther from Sun than Earth. CNN on the hunt for another planet in our solar system. Space.com on the Tyche debate. The Jet Propulsion Labora...

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