Physics, 19.12.2019 03:31 orangeicecream

Based on current evidence, a supercluster is most likely to have formed in regions of space where

a. the density of matter was slightly higher than average
b. when the universe was very young the acceleration of the expansion was proceeding faster than elsewhere
c. supermassive black holes were present in the very early universe
d. there was an excess concentration of hydrogen gas when the universe was very young.

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