PBS Space Time - Season 2019 Episode 30 30. epizód
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.
- Műfaj: Documentary, Talk
- Stúdió: YouTube
- Kulcsszó: astrophysics, science and technology
- Öntvény: Matthew O’Dowd
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