Galakc

The universe
宇宙
The Milky Way galaxy is our cosmic home
银河系是我们宇宙的家园
But it is far from being the only galaxy in the universe
但它远不是宇宙中唯一的星系
To get a better understanding of the composition and evolution of our universe
为了更好地了解我们的宇宙的组成和进化
Astronomers try to answer a deceptively simple question
天文学家试图回答一个看似简单的问题
How many galaxies are there in the universe?
宇宙中到底有多少个星系？
For a long time it was thought
很长一段时间以来人们一直认为
That that the entire universe consisted of our galaxy alone
整个宇宙都是由我们的星系组成的
Beyond this limit
超过这个限度
Just how far it goes is yet an unanswered question
到底能探索多远，这是一个尚未回答的问题
The universe continues
宇宙继续
The universe
宇宙