translation.en: And as we've learned over the centuries, since Galileo Galilei, the Italian scientist, first turned, in that time, a two-inch, very small telescope, to the sky, every time we have built larger telescopes, we have learned something about the universe; we've made discoveries, without exception.
translation.zh: 然后随着几个世纪的研究， 自从意大利科学家伽利略 开始从他第一次把一个直径 两英寸的小型望远镜指向天空开始， 每当我们造出更大的望远镜， 我们就对宇宙多了解一分， 无一例外，我们都有新发现。