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.更多《OVERFLOW全集未增删带翻译樱花》手机免费观看、OVERFLOW全集未增删带翻译樱花完整版在线播放、OVERFLOW全集未增删带翻译樱花在线观看完整版免费相关欧美综艺资源，请持续关注雨猫影视!