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Listen to part of a lecture in an astronomy class.
請聽天文學課上的部分內容。
Before we continue talking about the properties of individual galaxies, it’s worth talking about the distribution of galaxies in space.
在我們繼續講每個星系的屬性之前，這些星系在太空中的分布也值得一講。
Efforts at mapping or surveying the universe, making a sort of atlas of galaxies, have been going on for more than 50 years.
繪制宇宙的地圖或勘測宇宙、制作出星系的地圖集的努力已經進行了超過50年了。
And the creators of the first major map of the universe were the astronomers Harlow Shapley and Adelaide Ames.
第一批重要的宇宙地圖繪制者是天文學家Harlow Shapley和Adelaide Ames。
In 1932, Shapley and Ames catalogued the positions of 1250 galaxies by photographing what they saw through their telescopes.
1932年，Shapley和Ames通過拍攝下他們在望遠鏡中看到的內容編錄了1250個星系的位置。
And they made an important discovery. Their survey was the first to indicate that galaxies were not distributed uniformly in space.
而且他們做出了一項重大發現。他們的調查首次指出星系在太空中不是均衡分布的。
Some areas had a lot of galaxies, and other areas had just a few. Another way to putting this is say that galaxies are clustered.
一些區域有很多星系，而其他區域只有一點兒。另一種表達方式就是說星系是成群分布的。
They’re not spread evenly throughout the universe. So we have stars grouped together in galaxies and galaxies grouped together in clusters. Okay?
它們在宇宙中不是均勻分布的。所以我們有聚集在星系中的星星和聚集成星團的星系。
Now, after their survey, other astronomers completed surveys that added to the number of clusters catalogued.
繼他們的調查之后，其他天文學家完成了一些調查，增加了編錄的星團數量。
