eighteen galaxies

What Force Causes Galaxies To Move Away From Each Other?

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What Force Causes Galaxies To Move Away From Each Other? What force causes galaxies to move away from one another? Energy left over from the Big Bang. Why galaxies are moving away from us? The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the

How Can We See Galaxies Travelling Away Faster Than Light?

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How Can We See Galaxies Travelling Away Faster Than Light? So astronomers measure a galaxy’s redshift from its spectrum, use the Hubble constant plus a model of the universe to turn the redshift into a distance, and use the distance and the constant speed of light to infer how far back in time they are