I understand how different stars are different colors, and planets, and so-forth. But my thought process assumes the “law of averages” would make most galaxies at least close to the same overall color…..why aren’t they?
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This video touches on the expansion of the universe, time dilation and travelling near speed of light in an engaging way. [A journey to the end of the universe.](https://youtu.be/b_TkFhj9mgk)
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