We're going to start and realize that the entire visible universe, everything we can see in every direction with the Hubble Space Telescope plus our other instruments, was once in a region that was smaller than an atom.
我们将要开始认识整个可见宇宙 用哈勃空间望远镜和别的仪器来观察我们能看到的 每个角落 而这些一切曾经比一个原子还要小