Bb

The Big Bang

By ajabbott0221
  • The Big Bang

    The Big Bang

    13.8 billion years ago the universe began as a tiny, hot, dense point which rapidly expanded.
  • Basic Elements Form

    Basic Elements Form

    3 seconds after the big bang, basic elements (H, He) nuclei form
  • Matter Era

    Matter Era

    300,000 years after the big bang, matter finally emerges in the form of hydrogen and helium atoms.
  • First Stars & Galaxies

    First Stars & Galaxies

    300 million years after the Big Bang, the H and He gas condensed and formed the first stars.
  • Our Sun Forms

    Our Sun Forms

    9 billion years after the Big Bang (4.8 billion years ago) our star formed.
  • Radiation Era

    Radiation Era

    10,000 years after the big bang, most of the universe was radiation- raw energy.
  • Earth Forms

    Earth Forms

    8.3 billion years after the Big Bang our little planet formed. (4.5 Ba)
  • Earliest Life

    Earliest Life

    10 billion years after the Big Bang the first microscope life formed.