话题要从原始星系的旋涡气体和尘埃形成的一个局部涡流说起。
The story begins with a local eddy in the swirling gas and dust of the primordial galaxy.
天文学家最近通过模拟原始星系碰撞，解释了巨型黑洞如何在宇宙演变过程中形成。
Astronomers have solved the mystery of how supermassive black holes formed early in the universe's evolution by modelling the collision of giant primordial galaxies.
银河为什么会变得如此巨大？科学家观察到一个原始星系的急剧膨胀，这次罕见的观测也许能提供答案。
How did big galaxies get so big? A rare glimpse at a primordial galaxy undergoing a growth spurt may provide some answers.
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