Quote:
Originally Posted by Tuna
Oh, and back to the topic of space and the Universe for a second. One theory that is recognized as a possible ending to the Universe is the "Big Crunch", which is basically the reverse of the big bang. Using this theory, one can postulate that the Universe has been on a never ending cycle of Big Bang/Crunches.
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The only problem I see with that theory is that you can measure the expansion of the universe, and using simple logic and knowledge of gravity, know that the further massive bodies are away from each other, the less gravitational force they exert on one another, so gravity couldn't be the cause of a crunch. I'm not aware of any other force that could cause a crunch, but I could be mistaken.