简介： 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.
![野蛮人入侵[预告片]封面图](/upload/vod/20250510-17/30db06a760358e3a16884337df6833da.jpg)
