Hubble distance

例句：

1. 1. The galaxy is about 250 million light-years away from us.
   这个星系离我们大约有2.5亿光年远。
2. 2.The universe is expanding at a rate that's increasing the Hubble distance between galaxies.
   宇宙正在以增加的距离扩张，这导致了星系之间的距离增大。
3. 3.The Hubble Space Telescope has helped scientists measure the distance to distant galaxies.
   哈勃太空望远镜帮助科学家测量了遥远星系的距离。