Earth's history

By Matthew Kim
  • 4600 BCE

    Birth of the Sun

    Birth of the Sun
    In the beginning, it was a gas, but the explosion of a star caused the creation of the sun and a protoplanetary disc around it.
  • 4599 BCE

    Primary accretion stage

    4600BCE- 4599BCE
    The rocks, which orbits the sun, collide and fused together. And this becomes into an asteroid or a planet over time.
  • 4598 BCE

    Giant impact stage

    Giant impact stage
    4598BCE ~ 4499BCE
    Large rocks crashed into each other and formed large planets. The moon also forms in this period. The mars-sized object hits the Earth, and the debris gathered to form the moon.
  • 4498 BCE

    Late accretion stage

    Late accretion stage
    4498BCE ~3899BCE
    A planet like Pluto crashed into the earth. The metals that arose at this time accumulated on Earth for a long time.
  • 3898 BCE

    Late heavy bombardment

    Late heavy bombardment
    3898BCE ~ 3698BCE
    Jupiter and Saturn, filled with gas, cleaned up the rocks around them to make a path to go toward the Sun. In this period, there is also a possibility that comets and the Earth may have collided(full with water)