剧情介绍：最新美剧在线观看宇宙苍穹概要，此美剧是一部欧美综艺美剧、类型的美剧。 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.九九美剧详情