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 www.ias.edu
An Extreme Cousin for Pluto? Possible Dwarf Planet Discovered at Solar System's Edge - Press Release | Institute for Advanced Study
| | theconversation.com
What is a dwarf planet? | Space
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| | 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.
| | starkeycomics.com
The History of Planets in our Solar System - Starkey Comics
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| | A brief history of the 30 or so objects in our solar system that have been considered planets at some point. While the planets themselves may seem constant and timeless, the way we define the term "planet" has changed drastically over the centuries. Here's my timeline of all the objects considered planets in our solar [...]
| | www.space.com
Meet the Solar System's Dwarf Planets | Space
1.9 parsecs away

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| | The category "dwarf planet" was created in 2006 to make room for the many large bodies being discovered on the outer reaches of the solar system. Here's a tour of the five currently recognized dwarf planets: Pluto, Eris, Haumea, Makemake and Ceres.
| | www.space.com
Five Years Later | Space
11.7 parsecs away

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| The decision to strip Pluto of its planet status and rebrand it as a dwarf planet was controversial, and remains so to this day. The debate stems from a revolution in our understanding of the solar system and shows that science is always evolving.