zetaw6274 zetaw6274

15-10-2020
Biology

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Do galaxies move and if so how do we know?

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abagalecoleman abagalecoleman

15-10-2020

Answer: Galaxies do move. They both rotate and move through space. But how do we know? Fortunately, there is a way to detect the motion of a galaxy: By examining the spectrum of light from a galaxy, you can determine whether the galaxy is moving towards or away from Earth, and how fast.

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