Quote:
Originally Posted by Daradon
My guess is that everything would eventually burn out even if the universe wasn't expanding. But maybe the two are mutually exclusive?
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FWIW, there is considerable evidence that looks as though the universe will never stop expanding, as the dark energy powering the expansion is sufficient to overcome gravity, and that eventually the structure of space itself may decay into nothingness; the universe will be a huge empty place for a long while, and then disintegrate into non-being.
The
Ultimate State of the Universe is a good summary of the possibilities.