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Hey, guys. So all of us already know that Pluto was stripped off of its planet title in 2006, right? But do you guys know why that happened? It's because a celestial object has to fulfill three three criteria to be named or considered as a planet. Okay? So I'll tell you what those three criterias are. Firstly, the object should revolve around the sun. Second, the object should be spherical in shape
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