Co to je kometa? | Na ubrousek (4K)
Na ubrousek
Dec 16, 2018 17:01
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kometa, Halley, koma
O tom, co to je kometa, z čeho se skládá, a jak je asi velká.
reference:
67P/Churyumov–Gerasimenko: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0 http://creativecommons.org/licenses/by-sa/3.0/igo/ (no changes were made)
This work by Eduard Šubert is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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