First 1 billion years of Earth

By AP4798334
  • 4600 BCE

    Planet Accretion (4.6 Billion years ago)

    Material accumulates to form each of the planets in the Solar System
  • 4500 BCE

    Core Formation

    Heavier materials such as Iron and Nickel cool in the center.
  • Period: 4500 BCE to 3800 BCE

    Planetary Cooling

    Earth forms into a molten planet; asteroids and meteors helped shape it into a sphere
  • Period: 4100 BCE to 3800 BCE

    End of Heavy Bombardment

    Asteroids and smaller protoplanets impact the larger planets. During the Late Heavy Bombardment, the number of impacts may have increased

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