closed universe


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Related to closed universe: open universe
  • noun

Words related to closed universe

(cosmology) a universe that is spatially closed and in which there is sufficient matter to halt the expansion that began with the big bang

References in periodicals archive ?
The open or closed universe can also be recently accelerated by the dark energy.
He instead argues for restrictions on the determination of such events by the arche of divine providence, thus leaving them anarchic with respect to its order but capable of introducing new beginnings in the otherwise closed universe of causes.
The cosmos would teeter between an open universe, in which the expansion continues forever, and a closed universe, in which complete collapse is inevitable.
Nonetheless, cautions Burstein, "One massive group does not a closed universe make.
Gerard't Hooft of the Institute for Theoretical Physics in Utrecht, the Netherlands, has since written a paper purportedly proving that a closed universe -- one filled with sufficient mass to reverse its expansion -- would necessarily collapse to a size smaller than any route one would need to take to circumnavigate two oppositely directed, speeding particles along a closed time-like curve.
Again, for gravity to be strong enough to stop and reverse the expansion of the universe, ultimately causing a recollapse -- which is how a closed universe would behave--large amounts of dark matter must exist.