Season 2019 · Episode 30 of 40
Aired Sep 23, 2019
Is Pluto a Planet?
Mon, Sep 23, 2019
0 of 40 watched this season
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.
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Airs
Mon, Sep 23, 2019
Show
PBS Space Time
433 episodes
Episode
S2019 · E30
in PBS Space Time