EPISODE · Mar 18, 2020 · 5 MIN
神秘的暗物质，维持星系的“团结”
from 天文随心听｜讲述宇宙与人的故事
在宇宙中，充斥着各种各样巨大的天体。它们的质量如此之大，让我们的语言都显得匮乏。比如太阳的质量，大约是2000亿亿亿吨，而宇宙中到处都有比太阳大得多的天体，我们只能用太阳质量作为单位来衡量。比如星系，通常都是太阳质量的几千亿倍，而宇宙中至少有几千亿个星系。
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神秘的暗物质，维持星系的“团结”
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