2 Εποχή
16 Επεισόδιο
Crash Course Big History - Season 1 Episode 2 Επεισόδιο 2
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed galaxies, created heavy elements, and eventually created planets.
- Ετος: 2017
- Χώρα: United States of America
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- Στούντιο: YouTube
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