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big bang theory

   Also found in: Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
big bang theory
n.
A cosmological theory holding that the universe originated approximately 20 billion years ago from the violent explosion of a very small agglomeration of matter of extremely high density and temperature.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.big bang theory - (cosmology) the theory that the universe originated sometime between 10 billion and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature
big-bang theory
scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable"
cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe


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The Big Bang theory, however, does not explain what happened before the universe's beginning.
To infinity & beyond! by Peterson, Kristin / U.S. Catholic
the theory of relativity, the big bang theory, evolution, even the HIV-AIDS paradigm--and rigorously re-examines the basic assumptions and conclusions of each with a kind of schoolboy ruthlessness.
Hogan, James P. Kicking the sacred cow; questioning the ... by Puffer, Raymond / Kliatt
Two astrophysicists have won the 2006 Nobel Prize in Physics for their leading roles in a satellite mission that provided convincing evidence of the validity of the Big Bang theory and first detected the seeds of galaxy formation.
Nobel prizes recognize things great and small: awards focus on birth ... by Science News
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