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Click through on any links that interest you or select the planets on the right to continue exploring the Outer Web.
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science.nasa.gov
| | theconversation.com

In 2006, and after much debate, the International Astronomical Union came up with a new definition for a planet. And for the first time, the term "dwarf planet" was used.
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Travel
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| | spaceplace.nasa.gov

The icy bits past Neptune's orbit
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Travel
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| | www.space.com

Pluto isn't the only dwarf planet residing in our solar system. Try your hand at naming the others in our quiz!
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| | blogs.nasa.gov


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