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  2. History of the Big Bang theory - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Big_Bang_theory

    The theory he devised to explain what he found is called the Big Bang theory. [citation needed] In 1931, Lemaître proposed in his "hypothèse de l'atome primitif" (hypothesis of the primeval atom) that the universe began with the "explosion" of the "primeval atom" – what was later called the Big Bang.

  3. Georges Lemaître - Wikipedia

    en.wikipedia.org/wiki/Georges_Lemaître

    The astronomer Fred Hoyle introduced the term "Big Bang" in a 1949 BBC radio broadcast to refer to cosmological theories such as Lemaître's, according to which the Universe has a beginning in time. [31] [32] Hoyle remained throughout his life an opponent of such "Big Bang" theories, advocating instead a steady-state model of an eternal Universe.

  4. Big Bang - Wikipedia

    en.wikipedia.org/wiki/Big_Bang

    The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The notion of an expanding universe was first scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.

  5. George Gamow - Wikipedia

    en.wikipedia.org/wiki/George_Gamow

    Gamow's work led the development of the hot "big bang" theory of the expanding universe. He was the earliest to employ Alexander Friedmann's and Georges Lemaître's non-static solutions of Einstein's gravitational equations describing a universe of uniform matter density and constant spatial curvature. Gamow's crucial advance would provide a ...

  6. List of cosmologists - Wikipedia

    en.wikipedia.org/wiki/List_of_cosmologists

    David N. Schramm (1945–1997) was an expert on big bang theory and an early proponent of dark matter; Dennis W. Sciama (1926–1999) studied many aspects of cosmology and supervised many other leading cosmologists; Irving Segal (1918–1998) created chronometric cosmology with alternative explanation of redshift in spectra of distant sources

  7. Alpher–Bethe–Gamow paper - Wikipedia

    en.wikipedia.org/wiki/Alpher–Bethe–Gamow_paper

    While the original theory neglected a number of processes important to the formation of heavy elements, subsequent developments showed that Big Bang nucleosynthesis is consistent with the observed constraints on all primordial elements. Formally titled "The Origin of Chemical Elements", it was published in the April 1948 issue of Physical ...

  8. Which ‘The Big Bang Theory’ Stars Have — And Haven’t ...

    www.aol.com/entertainment/big-bang-theory-stars...

    The Big Bang Theory is over but several members of the original cast have found ways to make cameos on other shows in the franchise — including Young Sheldon and Georgie and Mandy's First Marriage.

  9. Fred Hoyle - Wikipedia

    en.wikipedia.org/wiki/Fred_Hoyle

    The theory was one alternative to the Big Bang which, like the Big Bang, agreed with key observations of the day, namely Hubble's red shift observations, and Hoyle was a strong critic of the Big Bang. He coined the term "Big Bang" on BBC radio's Third Programme broadcast on 28 March 1949. [28]