earth accretion

  • 4600 BCE

    planetry accretion

    planetry  accretion
    The collection of rock and dust into the formation of a planet 4.6 billion years ago.
  • 3500 BCE

    origin of life on earth

    origin of life on earth
    e molecules which combined to form genetic material are more complex than the "primordial soup" of organic chemicals​ that existed on Earth four billion years ago.