結果 : why are stars only visible sometimes
1:28

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161 回視聴 - 3 年前
3:34

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4:43

no visible light in space but local

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5:58

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1:39

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0:16

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0:49

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0:15

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3:19:53

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10:58

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158 回視聴 - 5 年前
53:30

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