Formation of the Solar System

By ARISWANG
  • 3.8 bya
    3

    3.8 bya

    Oort cloud reaches maximum mass.
  • 4.6 bya
    4

    4.6 bya

    Pre-solar nebula forms and begins to collapse. Sun begins to form.
  • 4.5 bya
    4

    4.5 bya

    Terrestrial planets and the Moon form.
    Giant impacts occur.
    Water delivered to Earth.
    Sun becomes a main-sequence star.
  • 4 bya
    4

    4 bya

    Resonance in Jupiter and Saturn's orbits moves Neptune out into the Kuiper belt. Late Heavy Bombardment occurs in the inner Solar System.
  • 5 bya
    5

    5 bya

    Previous generations of stars live and die, injecting heavy elements into the interstellar medium out of which the Solar System formed.