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   Big Bang

   /ˌbiɡ ˈbaNG/

   

   noun

   • 1. the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe.

   Word Origin 1940s: first used in 1949 by the British astrophysicist Sir Fred Hoyle (see Hoyle, Sir Fred), who actually disagreed with the theory, preferring the steady state model.

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2. Top Stories

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     Richest ‘The Big Bang Theory’ Cast Members Ranked From Lowest to Highest (& the Wealthiest Has a Net Worth of $160 Million!)

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3. People also ask

   Does the Big Bang model explain the origin of the universe?

   • One of the common misconceptions about the Big Bang model is that it fully explains the origin of the universe. However, the Big Bang model does not describe how energy, time, and space were caused, but rather it describes the emergence of the present universe from an ultra-dense and high-temperature initial state.

   Big Bang - Wikipedia

   en.wikipedia.org/wiki/Big_Bang

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   What is the Big Bang theory?

   • 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.

   What is the Big Bang Theory? | Space

   www.space.com/25126-big-bang-theory.html

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   Is the Big Bang an explosion?

   • ISBN 978-0-19-886489-9. The term "Big Bang" is an unfortunate misnomer. It implies an "explosion," and explosions are events that happen in space. This is incorrect; the term describes the first instant in the expansion of space itself. Some would even interpret it as the very beginning of the universe, evolving from "nothing."

   Big Bang - Wikipedia

   en.wikipedia.org/wiki/Big_Bang

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   What happened in the Big Bang?

   • It’s hard to fathom that, at the moment of the Big Bang, all of the energy in the universe – some of which would later become galaxies, stars, planets and human beings – was concentrated into a tiny point, smaller than the nucleus of an atom. And it’s not just matter that was born in the Big Bang.

   What is the Big Bang? - EarthSky

   earthsky.org/space/definition-what-is-the-big-bang/

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4. spaceplace.nasa.gov › big-bang › enWhat Is the Big Bang? - NASA Space Place

   spaceplace.nasa.gov › big-bang › en

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   Apr 11, 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!

   • Dark Matter

     For the first 150 million years after the Big Bang, there...

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     What Is the Big Bang? Why do we call it that? explore; Where...

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     A tsunami is a large wave caused by movements in Earth''s...

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     This latest announcement, however, is based on a statistical...

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5. www.space.com › 25126-What is the Big Bang Theory? | Space

   www.space.com › 25126-

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   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...

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

   en.wikipedia.org › wiki › Big_Bang

   • Cached

   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 in 1927 by Roman Catholic priest and physicist Georges Lemaître.

7. www.britannica.com › science › big-bang-modelBig-bang model | Definition, Evidence, Videos, & Facts

   www.britannica.com › science › big-bang-model

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   Mar 1, 2024 · The big-bang model is a widely held theory of the evolution of the universe from a state of extremely high temperature and density 13.8 billion years ago. It is based on Einstein's theory of relativity and the cosmological principle, and predicts the abundances of matter, radiation, and neutrinos in the present universe.

   • Author: The Editors of Encyclopaedia Britannica

8. science.nasa.gov › universe › the-big-bangThe Big Bang - NASA Science

   science.nasa.gov › universe › the-big-bang

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   Learn how the universe evolved from the Big Bang, the origin of space, time, and matter. Discover the fundamental forces, the nature of dark energy and matter, and the cosmic web of galaxies.

9. Videos

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     7:45

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     What Triggered the Big Bang? | How the Universe Works

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10. earthsky.org › space › definition-what-is-the-big-bangWhat is the Big Bang? - EarthSky

    earthsky.org › space › definition-what-is-the-big-bang

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    Jun 11, 2020 · The Big Bang is the theory of how the universe began with a tiny point of energy that expanded violently and exponentially. Learn about the evidence, the Lambda-CDM model, the unanswerable questions and the philosophical implications of the Big Bang.

11. hubblesite.org › contents › articlesThe Big Bang | HubbleSite

    hubblesite.org › contents › articles

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    Sep 30, 2022 · The big bang is the event that created the universe about 13.8 billion years ago. Learn how scientists measure the age of the universe and what the Cosmic Microwave Background reveals about the early universe.