Chinese: 几个世纪以来，天文学家相信银河构成了整个宇宙。哈勃第一个证明了通过望远镜看到的天空中的模糊花斑是其他星系，而不是银河系的遥远部分。
English: For centuries, astronomers believed that the Milky Way made up the entire universe. Hubble was among the first to show that the fuzzy patches in the sky seen through telescopes were other galaxies, not distant parts of the Milky Way.