big crunch

Definitions

General Science

  • noun the possible end of the universe, according to the theory that states that if the universe is dense enough, it will eventually finish expanding and contract again under its own mass, collapsing back into a single small volume in a reverse action replay of the big bang

Astronomy

  • The possible end of our universe. If the universe is dense enough, it will eventually finish expanding and contract again under its own mass, eventually collapsing back into a single small volume in a reverse action replay of the big bang. This is the big crunch. The idea has gained credence in recent years with the growth of the idea that there is a large amount of ‘missing mass,’ material too dark to be observed, within the universe. If it is present in the amounts which now seem possible, the big crunch (during which there would be bizarre reversals of some of our present laws of physics) becomes more likely.
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