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Why are galaxies in space?

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Anonymous

9y ago
Updated: 8/17/2019

At some moment, there were minor fluctuations in the matter density in the Universe. This is related to the theory of inflation.Due to gravitation, the parts that had a little more density to start with gathered more mass from the surrounding areas, thus forming galaxies, galaxy clusters, and superclusters.

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Wiki User

9y ago

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