The Story Behind the Pluto: A Cold Planet, HD Documentary 2017

Pluto:King of the Juipter Belt Discovered in 1930, Pluto was long considered our solar system's ninth planet. But after the discovery of similar intriguing worlds deeper in the distant Kuiper Belt, icy Pluto was reclassified as a dwarf planet. Findings by NASA's New Horizons in 2015 revealed for the first time how that Pluto is a complex and mysterious world. Information about Pluto and its largest moon, Charon, provide insight into the collision believed to have formed the dwarf planet and moons we see today.