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Chemical evolution

 

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Chemical evolution



 
  Chemical evolution may refer to:
  • Nucleosynthesis
    Nucleosynthesis

    Nucleosynthesis is the process of creating new atomic nuclei from preexisting nucleons . It is thought that the primordial nucleons themselves were formed from the quark-gluon plasma from the Big Bang as it cooled below ten million degrees....
     of the chemical element
    Chemical element

    A chemical element is a type of atom that is distinguished by its atomic number; that is, by the number of protons in its atomic nucleus. The term is also used to refer to a pure chemical Chemical substance composed of atoms with the same number of protons....
    s in the universe following the Big Bang
    Big Bang

    The Big Bang is the physical cosmology model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific method and observation....
     and in star
    Star

    A star is a massive, luminous ball of Plasma that is held together by its own gravity. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth....
    s and supernova
    Supernova

    A supernova is a Astronomy#Stellar astronomy explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months....
    s;
  • Abiogenesis
    Abiogenesis

    In the natural sciences, abiogenesis, or origin of life, is the study of how life on Earth could have arisen from inanimate matter. It should not be confused with evolution, which is the study of how living things change over time....
    , the study of how life
    Life

    Life is a characteristic of organisms that exhibit certain biological processes such as chemical reactions or other events that results in a transformation....
     on Earth
    Earth

    Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
     may have emerged from non-life;
  • Chemical postevolution
    Chemical postevolution

    Chemical postevolution is the structural optimization of natural products by synthetic chemical means such as de novo synthesis and semisynthesis....
    : chemical optimization of natural products;
  • Molecular evolution
    Molecular evolution

    Molecular evolution is the process of evolution at the scale of DNA, RNA, and proteins. Molecular evolution emerged as a scientific field in the 1960s as researchers from molecular biology, evolutionary biology and population genetics sought to understand recent discoveries on the structure and function of nucleic acids and protein....
    , evolution at the scale of molecules.