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.如果是其他生物，死亡了这么多，早就心生退(tuì )意，可(🚿)那(nà )些生物在母皇的控制下，完(wán )全没有。