big bang

An illustrated spiral is shown depicting many significant events that have occurred since the big bang. The big bang is at the center, and a city built by humans is at the spiral’s end. Please see the explanation for more detailed information.
这张图所示的时间螺旋，呈现了其中的一些重要里程碑。螺旋的中心是大爆炸，人类建造的城市位于螺旋的末端。有关更多详细信息，请参阅说明。