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Big Crunch
Part of a series on Physical cosmology Universe Big Bang Age of the universe Chronology of the universe Inflation Nucleosynthesis GWB Neutrino background Cosmic microwave background Redshift Hubble's law Metric expansion of space Friedmann equations FLRW metric Shape of the universe Structure formation Reionization Galaxy formation Large quasar group Large-scale structure Galaxy filament Ultimate fate of the universe Future of an expanding universe Lambda-CDM model Dark energy Dark matter Timeline of cosmological theories History of the Big Bang theory Discovery of cosmic microwave background radiation Observational cosmology 2dF SDSS COBE BOOMERanG WMAP Planck Galileo Copernicus Newton Einstein Hawking Friedman Lemaître Hubble Penzias Bharadwaj Tolman Wilson Gamow Dicke Zel'dovich Aaronson Alpher Mather Rubin Penrose Alfvén Smoot Ehlers Ellis Sunyaev Schmidt Suntzeff de Sitter Guth others Religious interpretations Astronomy portal  Category: Physical cosmology v t e In physical cosmology, the Big Crunch is one possible scenario for the ultimate fate of the universe, in which the metric expansion of space eventually reverses and the universe recollapses, ultimately ending as a black hole singularity or causing a reformation of the universe starting with another big bang. Sudden singularities and crunch or rip singularities at late times occur only for hypothetical matter with implausible physical properties. Cite error: There are tags on this page, but the references will not show without a {{reflist}} template (see the help page).
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