Preview

The BIG BANG THEORY

Better Essays
Open Document
Open Document
7627 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The BIG BANG THEORY
Big Bang
From Wikipedia, the free encyclopedia

"Big Bang theory" redirects here. For the American TV sitcom, see The Big Bang Theory. For other uses, see Big Bang (disambiguation).

According to the Big Bang model, theUniverse expanded from an extremely dense and hot state and continues to expand today. A common analogy explains that space itself is expanding, carrying galaxies with it, like spots on an inflating balloon. The graphic scheme above is an artist 's concept illustrating the expansion of a portion of a flat universe.
Part of a series on
Physical cosmology

Universe
Big Bang
Age of the universe
Chronology of the universe
Early universe[show]
Expanding universe[show]
Structure formation[show]
Future of universe[show]
Components[show]
History[show]
Experiments[show]
Scientists[show]
Social impact[show] Astronomy portal Category: Physical cosmology v t e The Big Bang theory is the prevailing cosmological model for the early development of the Universe.[1] According to the theory, the Big Bang occurred approximately 13.798 ± 0.037 billion years ago,[2][3][4][5][6] which is thus considered the age of the universe.[7][8][9][10] At this time, the Universe was in an extremely hot and dense state and began expanding rapidly. After the initial expansion, the Universe cooled sufficiently to allow energy to beconverted into various subatomic particles, including protons, neutrons, and electrons. Though simple atomic nuclei formed within the first three minutes after the Big Bang, thousands of years passed before the first electrically neutral atoms formed. The majority of atoms that were produced by the Big Bang are hydrogen, along with helium and traces of lithium. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies, and the heavier elements were synthesized either within stars or during supernovae.
The Big Bang is the scientific theory that is most consistent with observations of



References: XDF (2012) view - each light speck is a galaxy - some of these are as old as 13.2 billion years[26] - the universe is estimated to contain 200 billion galaxies.

You May Also Find These Documents Helpful

  • Powerful Essays

    assistance this volume would not have been a reality. To Peter OseiKwame, with whom I explored initial ideas and formulations on time in…

    • 4653 Words
    • 19 Pages
    Powerful Essays
  • Powerful Essays

    The Big Bang Theory

    • 1951 Words
    • 8 Pages

    The curiosity humans have in our origin and worth has led to a remarkable search for answers to big questions about history starting from the very beginning. Big history cosmology looks to answer some of the biggest questions humans have about the universe. In this paper, big history will be explored through the formation of the current U.S. one cent coin or more commonly referred to as a penny. The big bang theory is a scientific origin story, based on real evidence which explores history in thresholds from the big bang to present. Thresholds are time periods that break up history into sections and each one is marked by significant pivotal events and emerging properties. Each threshold is connected to the last and accumulated ingredients led…

    • 1951 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    How did the Universe come to be? There are many theories on how the universe began, but the most common and scientific is the Big Bang theory. Georges Lemaitre is said to be the first person to formulate the Big Bang theory in 1927. Lemaitre gathered information and ideas from scientists Albert Einstein, and Alexander Friedman to create…

    • 804 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The Cosmic Engine Research

    • 1870 Words
    • 8 Pages

    In the early 1920’s Friedman for told a theory were universe begins with a Big Bang and continues expanding for untold billions of years (that’s the stage we’re in now.) But after a long enough period of time, the mutual gravitational attraction of all the matter slows the expansion to a stop.” The universe will eventually start to contract in a big crunch.…

    • 1870 Words
    • 8 Pages
    Good Essays
  • Good Essays

    It was simply a cloud a gas. Hawking discusses how he is astonished at the fact everything, such as galaxies and other cosmic matter, came from this cloud of gas. And it all had to be built atom-by-atom. The amount of atoms involved in this process is unthinkable. Hawking believes that the all this happened because of gravity. After the Big Bang, the gas was spread throughout the universe. Gravity began to pull these gases together over the course of the next 200 million years. In the early universe, the gas was not evenly spread out, therefore causing areas of high density. The gas simply clumped together. These high density areas is where the first galaxies were…

    • 734 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The big bang theory as initially proposed by Georges Lemaitre states that the universe started as an extremely hot and dense ‘primeval atom’ and the explosion of this atom caused it to expand which till today continues. Later George Gamow developed the idea of big bang further and proposed that eventually the universe cooled and drew a conclusion that we can predict the following:…

    • 831 Words
    • 4 Pages
    Good Essays
  • Good Essays

    This is further backed up by the ‘Big Bang’ theory. The Big Bang theory is the idea that at one point, our universe was a small bubble, thousands of times hotter, than it is today. Then it exploded and all time space and matter began. The Universe that we know was born.…

    • 797 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The Theory of the Big Bang started from observations and scientific facts. The Big Bang theory states that after the “Big Bang” the universe expanded from its original pea-sized origin to astronomical proportions, and the expansion of the universe still continues today but at a much slower rate. In the twentieth century many scientific developments were made by scientists that contributed to the creation of the Big Bang Theory.…

    • 549 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Big Bang Theory

    • 3932 Words
    • 16 Pages

    Quantum theory suggests that moments after the explosion at 10 -20 second, the four forces of nature; strong nuclear, weak nuclear, electromagnetic and gravity were combined as a single "super force" (Wald). Elementary particles known as quarks begin to bond in trios, forming photons, positrons and neutrinos and were created along with their antiparticles. There are minuscule amounts of protons and neutrons at this stage; approximately 1 for every one billion photons, neutrinos or electrons (Maffei). The density of the Universe in its first moment of life is thought to have been 1094g/cm3 with the majority of this being radiation. For each billion pairs of these heavy particles (hardens) that were created, one was spared annihilation due to particle-antiparticle collisions. The remaining particles constitute the majority of our universe today (Novikov).…

    • 3932 Words
    • 16 Pages
    Powerful Essays
  • Powerful Essays

    Life on Earth.

    • 4147 Words
    • 17 Pages

    * Scientists estimate that the universe is 10-20 billion years old and arose as a big bang, which is still expanding the universe.…

    • 4147 Words
    • 17 Pages
    Powerful Essays
  • Good Essays

    Where do we come from? Around the world, there are numerous religions and scientific theories that attempt to explain how our universe began. The information contained below will attempt to outline the Big Bang theory and the Cosmological Argument.…

    • 982 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Geology Final Exam Summary

    • 4790 Words
    • 20 Pages

    * Scientists noticed that all stars & planets are moving away from Earth which supports the theory that a massive explosion once occurred. (Big Bang)…

    • 4790 Words
    • 20 Pages
    Better Essays
  • Better Essays

    “The evolution of the world can be compared to a display of fireworks that has just…

    • 1138 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    The Milky Way

    • 292 Words
    • 2 Pages

    The Big Bang Theory is a theory that states that the universe was once in a hot, dense form of matter and radiation which expanded rapidly. The expansion and cooling of this matter allowed the formation of galaxies, stars, and planets. The National Aeronautics and Space Administration (NASA) launched a satellite known as the Cosmic Background Explorer to test the theory of the Big Bang Theory. Astronomers believed that the universe puts off its own heat and as a result, should be able to produce a perfect thermal radiation spectrum (Bennett, Donahue, Schneider, & Voit, 2010). The results aided in the support of the Big Bang Theory.…

    • 292 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    3. Elliptical Galaxies: “An elliptical galaxy is a galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless brightness profile”.…

    • 1983 Words
    • 8 Pages
    Powerful Essays