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www.nationalgeographic.com | ||
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theconversation.com
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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. | |
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www.space.com
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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. | |
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www.livescience.com
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| | | | | A conceptual mission known as "Persephone" could explore Pluto and its moons for 50 years ?- if it ever gets funded and approved. | |
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www.livescience.com
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| | | Depending on how you look at it, the human eye can see 2 miles, or more than 2 million light-years. | ||
