宇宙苍穹
未知
未知
综艺
美国
2014
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In trying to comprehend our universe, just how big is big? How far is far? This users guide to the cosmos will bring the incomprehensible down to a human scale such as Venus melting a tank, the density of a black hole compared to 1000 cars in a Coke can, and the comets in the Solar System equated to grains of sugar weighing half a ton.。在上方选择线路免费观看宇宙苍穹完整版。