Most Watched Today Is Pluto A Planet? [VIDEO] - Most Watched Today

Is Pluto A Planet?

CGP Grey explains why Pluto is no longer a planet in our solar system in his latest video. In 2006 astronomers found Eris, an object similar to Pluto but slightly larger orbiting in the same area. After being considered a planet from 1930-2006 Pluto was removed from the solar system and added to the Kupier Belt.

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