-
14 BCE
Big Bang
(all BC are BYA)
Created the building block of matter. -
4 BCE
Earth Formed
4.6BYA
Formed from stardust and through comets colliding into each others. Different comets with different materials collied, this formed rare and heavy elements on Earth. The surface is completely covered by molten rocks.Has lack of water and atmosphere. -
4 BCE
Moon Formed
4.5BYA -
Period: 4 BCE to 3 BCE
Planetary cooling
4.5-3.8BYA
The surface of Earth started to cool down -
3 BCE
Heavy Bombardment
4-3.8BYA
A period of time when planets in the inner solar system was being bombarded by heavy meteoroid on a regular basis. The asteroids are likely from the asteroid belt, where the main components are ice. In other words Earth's water likely came from the asteroids from the Heavy Bombardment time.
