11. How was the Milky Way formed? (A K2S Question)

From The Space Library

The Milky Way was formed shortly after the big bang, like all of the galaxies. After the initial expansion, areas that were denser than others were pulled together by their own gravity into galaxies. Within a galaxy, dense regions of hydrogen gas were pulled together to form stars and clusters of stars.

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Answer provided by Jim Zebrowski

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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