宇宙苍穹是由大导演未知2014年执导的一部美国发行的欧美综艺类影视作品，由未知领衔主演， 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
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