history of the universe

By facebooker_2152119948444603

  • big bang

    big bang
    13,8 billion years ago a hot dense point called a spectrum

  • basic elements form

    basic elements form
    some basic nuclei started to form about 3 seconds after the big bang

  • radiation era

    radiation era
    10 thousand years after the big bang
    most of the universe is pure energy called radiation

  • matter era

    300 thousand years after the big band H&HE atoms finally form
    gas (h&he) floats around in space

  • first stars and galaxies

    clouds of H&HE gas clump together growing more massive and eventually igniting forming the first stars

  • our sun is born

    9 billion years after the big bang (4.8 billion yrs ago) the sun was formed (same way as stars)

  • earth forms

    4.5 billion years ago our earth formed from a cloud of dust that had been orbiting the sun

  • earliest life begins

    earliest life begins
    10 billion years after the big bang the earliest living thing formed on earth