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