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At that time Jim Peebles pointed out that, in a Big Bang-created Universe, there must have been a cosmic infrared background (CIB) – different from the cosmic microwave background – that can account for the formation and evolution of stars and galaxies.
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The concept of an expanding universe was scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.
The Cartoon History of the Universe – From the Big Bang to Alexander the Great (Volumes 1–7). Doubleday. p. 368. ISBN 0-385-26520-4. Gonick, Larry (1994). The Cartoon History of the Universe II – From the Springtime of China to the Fall of Rome (Volumes 8–13). Doubleday. p. 305. ISBN 0-385-42093-5. Gonick, Larry (2002).
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The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
The Big Bang theory, which explains the Evolution of the Universe from a hot and dense state, is widely accepted by physicists.. In astronomy, cosmogony is the study of the origin of particular astrophysical objects or systems, and is most commonly used in reference to the origin of the universe, the Solar System, or the Earth–Moon system.
In the sitcom The Big Bang Theory, a joke is told by Dr. Leonard Hofstadter with the punchline mentioning "spherical chickens in a vacuum", in "The Cooper-Hofstadter Polarization" episode. [15] In the space gravity simulator educational video game Universe Sandbox, a spherical cow was added as a user-placeable object in March 2023. [16]
The first step toward a theory of Solar System formation and evolution was the general acceptance of heliocentrism, which placed the Sun at the centre of the system and the Earth in orbit around it. This concept had been developed for millennia ( Aristarchus of Samos had suggested it as early as 250 BC), but was not widely accepted until the ...