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.到时候(hòu )都不用(yòng )敌人来攻击他，翼人法(📿)师手中的电球就足于(yú )把这片地(dì )方夷为平地。