Why Pluto is No Longer a Planet

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Why Pluto is not a planet

Published on Jan 5, 2012

This is a video explainer that describes why Pluto is no longer a planet. It talks about the history of Pluto and its discovery, and then the discovery of Eris, which is larger than Pluto. Now you can learn the official rules for planethood. Created by Christian Ready for Universe Today
 
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