Pluto & Dwarf Planets - NASA Science

Dwarf Planets Overview Pluto and other dwarf planets are a lot like regular planets. So what’s the big difference? The International Astronomical Union (IAU), a world organization of astronomers, came up with the definition of a planet in 2006. According to the IAU, a planet must do three things: Dwarf planets like Pluto were defined as […]

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Pluto & Dwarf Planets - NASA Science

Pluto & Dwarf Planets - NASA Science

Pluto - NASA Science

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Pluto & Dwarf Planets - NASA Science

Pluto & Dwarf Planets - NASA Science

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