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The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. It was first proposed as a physical theory in 1931 by Roman Catholic priest and physicist Georges Lemaître when he suggested the universe emerged from a "primeval atom".
Jun 18, 2024 · 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.
- The Editors of Encyclopaedia Britannica
Jun 13, 2024 · The Short Answer: The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
Jul 26, 2023 · The Big Bang Theory explains how the universe began with an infinitely hot and dense single point that inflated to form the ever-expanding cosmos we see today.
Overview The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown.
With Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg. Aspiring film actress Penny moves into a Pasadena apartment across the hall from brilliant, but socially awkward, physicists Sheldon Cooper and Leonard Hofstadter and shows them how little they know about life outside of the lab.
Mar 25, 2024 · Learn how astronomer Fred Hoyle coined the term Big Bang in 1949 to describe the origin of the Universe, and how it became a popular and controversial concept. Explore the history and science of the Big Bang theory and its alternatives.
