Why isn't Pluto a planet? /
"For many years, it was accepted as fact that our solar system had nine planets. However, one important meeting of astronomers in 2006 reduced that number to eight. They decided that Pluto was not a planet, a declaration that outraged some people. Readers will learn more about distant Pluto, su...
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
New York :
Gareth Stevens Pub.,
2013.
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| Edition: | 1st ed. |
| Series: | Space mysteries
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| Subjects: | |
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