What holds galaxies together?

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Answer 1 · 2017-05-03T02:31:32

Gravity

Gravity is the force that holds the universe together, and allows for galaxies and solar systems to exist.

Answer 2 · 2017-05-10T18:57:31

Black holes

A black hole is the center of every galaxy, the planets and star systems orbit around it and i keeps us from being thrown into oblivion.