Big Bang. The Big Bang is the cosmological model of the initial conditions and subsequent development of the universe that is supported by the most comprehensive and accurate explanations from Aug 29, 2022 · The Big Bang model as we know it today was born out of the mathematics in the general theory of relativity as it pertained to the early universe. Stephen Hawking was the first to show this, in his PhD thesis published in 1966. So to deny the Big Bang is, in the absence of extraordinary evidence, to effectively deny the universe’s evolution. Nov 7, 2023 · Big-bang model, widely held theory of the evolution of the universe. Its essential feature is the emergence of the universe from a state of extremely high temperature and density—the so-called big bang that occurred 13.8 billion years ago. Learn more about the big-bang model in this article. We mathematically roll the clocks backward, with this data and get a number, 13.7 billion years minus one billionth of a billionth of a second when physics and math break down. The big bang "theory" is testable, falsifiable, and makes predictions. Until someone can prove it wrong it will remain the best explanation. Oct 18, 2011 · NASA. The Big Bang theory proposes that the universe began as an extremely hot and dense dot only a few millimeters wide. It since grew over 13.7 billion years into the vast and cooler expanding Feb 22, 2023 · One of the greatest scientific successes of the past century was the theory of the hot Big Bang: the idea that the Universe, as we observe it and exist within it today, emerged from a hotter .

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