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    2017 · History · 1h 50m

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  1. en.wikipedia.org › wiki › Big_BangBig Bang - Wikipedia

    The Big Bang was the initiation of the continuing expansion of the universe from a state of high density and temperature ( its central singularity ). [1] . 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".

  2. May 6, 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!

  3. Jul 26, 2023 · The Big Bang Theory is the leading explanation for how the universe began. Simply put, it says the universe as we know it started with an infinitely hot and dense single point that inflated and...

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  4. Learn how the universe evolved from the Big Bang, the origin of all matter and energy, and what it is made of. Discover the latest discoveries and stories about dark matter, dark energy, and the cosmic web.

  5. The big-bang model is the widely accepted theory of the origin and evolution of the universe from a hot and dense state 13.8 billion years ago. Learn about the key assumptions, predictions, and discoveries of this theory, as well as the Nobel Prize-winning physicists who contributed to it.

    • The Editors of Encyclopaedia Britannica
  6. Jan 17, 2017 · Learn how the big bang theory describes the cosmic cataclysm that created the universe from a single primordial atom. Explore the key events and discoveries that reveal the history and evolution of the cosmos.

  7. Learn how scientists at the Center for Astrophysics | Harvard & Smithsonian study the origin and evolution of the Universe, from the Big Bang to the first stars and black holes. Explore their projects, telescopes, and instruments to observe the cosmic microwave background, the dark ages, and inflation.

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