Why Is Pluto Not A Planet?

The video discusses Pluto's reclassification from a planet to a dwarf planet by the International Astronomical Union in 2006. It explains the criteria for planethood, which Pluto does not meet, and introduces the concept of dwarf planets and plutoids. The video also covers the Kuiper Belt, where Pluto resides, and mentions other celestial bodies like Eris, Haumea, and Makemake. It highlights the New Horizons mission launched by NASA to study Pluto and its moons, set for a flyby in July 2015. The episode concludes with a call to action for viewer engagement and support.

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