Timeline of earth

By George.Xue

  • Earth cools & feature forms

    The heating in the core tried to escaped and form the tectonic plates. The heat also created mantle plumes that caused the formation of volcanoes​ and hot spots.
  • Period: to

    Late Heavy Bombardment

    Jupiter and Saturn migrated inside and cleared lots of rocks and other stuff. After that, they migrated back out. Comets containing water also hit the ​earth during that period.

  • Presence of stable continents, liquid water, and surface temperatures that were probably less than 100 °C (212 °F)

  • Formation of atmosphere and ocean

  • Period: to

    Late Accretion stage

    Pluto-like objects crashed into planets and bring metals to the planets. The metals they brought to the planets sink to the center of the planets. However, some of the metals stay on the surface of the earth and became the metals that we discover​ today.

  • Formation of the Moon

    An object the size of Mars crashed into the earth. The debris that was knocked from the earth stay in orbit around the earth as a melton goop. After the goop was cooled down, it became the Moon.
  • Period: to

    Giant Impact Stage

    Lager objects collided into each together and the planetesimals turned to planets.

  • Birth of the sun

    A nearby star exploded and sent a shock wave. It caused the dust cloud to collapse gravitationally and formed our sun.
  • Period: to

    Hadean Eon

  • Period: to

    Primary accretion state

    Dust​ colliding into each other and forming little clumps.