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Is Pluto a Planet?

Season 5 Episode 33

About the Episode

You know what a planet is, right? A big round thing that orbits a star. Uh, not so fast. The surprisingly vicious debate over the planetary status of Pluto has given us a fascinating glimpse into what a scientific definition really is. And perhaps the word planet is too vague to be used as a scientific definition at all.

Aired: 09/22/19 | Expires: | Runtime: 14m 03s
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