Ultimate fate of the universe

Definition

The ultimate fate of the universe is a topic in physical cosmology, whose theoretical restrictions allow possible scenarios for the evolution and ultimate fate of the universe to be described and evaluated. Based on available observational evidence, deciding the fate and evolution of the universe has become a valid cosmological question, being beyond the mostly untestable constraints of mythological or theological beliefs. Several possible futures have been predicted by different scientific hypotheses, including that the universe might have existed for a finite or infinite duration, or towards explaining the manner and circumstances of its beginning.

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Ellis George Gamow George Musser George Smoot Georges Lemaître Gifford Lectures Global catastrophic risk Global dimming Global terrestrial stilling Gog and Magog Gradient Grand unification epoch Gravitational singularity Gravitational wave background Gravity Gray goo Great Apostasy Great Tribulation Habitat destruction Hannes Alfvén Hawking radiation Hazard Heat death of the universe Higgs boson Hindu eschatology Historical materialism Historicism (Christianity)Historicist interpretations of the Book of Revelation History of the Big Bang theory Holocene extinction Horizon scanning Hubble's law Human extinction Human impact on marine life Human impact on the environment Human overpopulation Hyperbolic geometry Hypercane Hypernova Ice age Idealism (Christian eschatology)Ilya Prigogine Impact event Impact winter Industrial applications of nanotechnology Inflation (cosmology)Intergalactic star Interplanetary contamination Isaac Newton Islamic eschatology Israfil Jamal Nazrul Islam James Webb Space Telescope Jewish eschatology Johannes Kepler John C. 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