As space expands, the galaxies get farther away from each other, but do not get bigger themselves, right? What is the difference between “space expanding” and the galaxies of the universe merely moving away from each other?

Everything is getting further apart, not just galaxies. Stars inside galaxies are moving apart, even the molecules inside you are gradually moving apart.

Now you won’t see this happening on a small scale. It’s impossible to detect. However on the macro scale, the big picture, we can see the universe is expanding. If it continues indefinitely then we experience what is called the big freeze, where everything ceases to exist, including molecules.

Author: Wayne Boyd

Wayne Edward Boyd was born in Morristown, New Jersey in 1953. He is a published author, former ISKCON sannyasi, and traveler, having lived on 3 continents and visited 37 countries. He presently lives in Amarillo, Texas working as a correctional officer and has interests in photography, political science and astronomy.

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