We receive no light from galaxies beyond the cosmological horizon, but if they were moving away only at light speed, it seems to me their light wouldn't reach us. Is there any observations or empirical evidence that shows or implies they are moving away from us faster than light?
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As long as the universe is decelerating, light emitted from sources beyond the Hubble sphere will eventually reach us. See this post for a detailed answer: If the expansion of the universe slowed what would we observe?
bapowell
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No, if the universe is in hyperspace, then that means that it can go infinitely fast, but in the actual universe, the speed limit is the speed of light and nothing can get to there except light.
AstroGuy
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