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General Science / Re: Are some galaxies moving away from us at faster-than-light speeds?
« on: 06/11/2017 08:56:17 »Quote from: chris
Is there evidence that this (unobservable, >c galaxies) is happening?Cosmologists have tried various methods, and come up with wildly different answers.
- Some estimates have put the size of the actual universe to be immensely larger than the observable universe, and the vast majority of galaxies are moving away at >c, and are beyond our view.
- On the other hand, some have suggested that the actual universe is smaller than the observable universe, and what we see as really distant galaxies are repeated images of closer galaxies, but seeing them when they were younger. They have looked for hints of this in repeated patterns in the Cosmic Microwave Background Radiation (CMBR), but not really found any.
So at this point, I would have to say that it is largely a matter of opinion.
See: https://en.wikipedia.org/wiki/Observable_universe#The_Universe_versus_the_observable_universe
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