なぜ彗星には尾があるのでしょうか? | #オームサム #子供 #科学 #教育 #子供たち
なぜ彗星には尾があるのでしょうか?さらに 9 つの動画を追加.. #aumsum #kids #science #education #children
Comets: Crash Course Astronomy #21
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NASA finds water on comet. | #shorts
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Small bodies (Comets, Asteroid, Dwarf Planets)
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