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Oct 19, 2022 · The high-energy emission known as a gamma-ray burst (GRB) – the most powerful type of explosion seen in our universe since the Big Bang – likely represents the moment a dying star collapsed...
Jul 29, 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.
- The Editors of Encyclopaedia Britannica
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. [2] [3] [4] [5]
Jan 1, 1993 · After all, everything in the universe involves science. And you already think scientifically everyday, even if you don’t know it. So get ready for a universe of amazing fun—you’ll have a blast. Read about quarks, quasars, and the questions that scientists are still trying to figure out.
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Dec 18, 2012 · A TVbooks, inc. Production. Access-restricted-item true Addeddate 2012-12-18 22:19:08 Bookplateleaf
Big science is a term used by scientists and historians of science to describe a series of changes in science which occurred in industrial nations during and after World War II, as scientific progress increasingly came to rely on large-scale projects usually funded by national governments or groups of governments. [ 1]
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Apr 12, 2024 · A burst of gamma rays more than 10 times brighter than any detected before struck Earth in October 2022, searing the atmosphere, wowing astronomers, and earning the nickname of the BOAT—the brightest of all time. Now, astronomers using NASA’s JWST orbiting observatory have identified the source of the blast—and stumbled on a new puzzle.
