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steady-state theory |
Also found in: Wikipedia, Hutchinson | 0.01 sec. |
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steady-state theory: see cosmology cosmology, area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe .
Modern Cosmological Theories..... Click the link for more information. . steady-state theoryConcept of an expanding universe whose average density remains constant, matter being continuously created throughout it to form new stars and galaxies at the same rate that old ones recede from sight. A steady-state universe has no beginning or end, and its average density and arrangement of galaxies are the same as seen from every point. Galaxies of all ages are intermingled. The theory was first put forward by William Macmillan (1861–1948) in the 1920s and modified by Fred Hoyle to deal with problems that had arisen in connection with the big-bang model. Much evidence obtained since the 1950s contradicts the steady-state theory and supports the big-bang model. |
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Hoyle's collaboration with scientists Thomas Gold and Hermann Bondi, colleagues in wartime radar research, led to the steady-state theory. A predecessor of QSSC, the steady-state theory of the universe, also invoked the existence of a creation field. |
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steady-state theory