Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.
因为这些星系的质量分布在更大的区域，它们每单位体积的恒星数量比传统星系要少得多。
They are so small on galactic scales and spread so far apart that they simply change their gravitational dance around their galaxies.
它们在星际尺度上来讲太小了，离得又太远，只是简单地绕着其星系改变其引力舞步罢了。
The latest result suggests it is more widely spread than the visible matter that is clumped together to form galaxies, with implications for how those galaxies formed.
它的分布远比聚合成星系的可见物质广泛而且还将为我们知晓星系如何形成提供帮助。
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