History of the Earth

4.6 Bilion Years Ago

1 BCE

The Solar Nebula Our Solar Nebula was shocked by a nearby supernova, which tours​ the cloud into a spin and introduced heavy elements such as carbon and iron into our nebula.

4.59 Bilion Years Ago

1 BCE

The Solar Disk The cloud started to condense in its center caused by gravity, forming a flat disk. The nebula collapse on itself and a young star were ignited at the center.

Earth's History

Period: 1 BCE to 15

4.54 Bilion Years Ago

2

Formation of the Early Gas Giants Due to gravity, denser materials are dragged inward and lighter materials such as hydrogen and helium were pushed out. This caused turbulence inside the outer gas cloud, forming the early gas giants, Jupiter, Saturn, Neptune, ​and Uranus.

4.54 Bilion Years Ago

2

Formation of the Early Terrestrial Planets The denser material started to from smaller asteroid, which collides with each other, growing into smaller planets which will ultimately end up into the terrestrial planets. Mercury, Venus, Earth, and Mars. This era was also known as the Heavy Bombardment.

4.5 Bilion Years Ago

3

The Hadean Eon At this state, Earth has been through enough collisions and grown into a size little larger than the Earth is today. Its gravity is strong enough to separate materials into layers, forming the core. Volcanic activity started to appear all over the surface.

4.5 Bilion Years Ago

3

The Great Impact Hypothesis During the Hadean Eon, a hypothetical terrestrial planet, Theia, was influenced by Jupiter's gravity and was slingshotted toward Earth's orbit. This planet, about the size of Mars, impacted Earth on an angle. This impact shattered one side of the Earth, and send materials into an Earth orbit. These materials later formed the moon.

4.0 Bilion Years Ago

5

End of the Heavy Bombardment​.

3.9 Bilion Years Ago

5

The Archean Eon The planet is no longer bombarded with asteroids, a thin crust is created as the planet slowly cools. Volcanic activity was still active, producing gases which form a thin, carbon-nitrogen dominated
atmosphere. Water vapor was created due to the high pressure and oceans formed for the first time. Marking the start of life.

3.4 Bilion Years Ago

6

The First Bacterial Life The first single cellular life was created, bacterias that live on photosynthesis, the ancestors of the Chloroplast, classified as Prokaryotes. These organisms slowly turn Earth's atmosphere more oxygen based.

2.5 Bilion Years Ago

8

The Proterozoic Eon The atmosphere becomes more oxygen-rich, allowing further evolutions.

2.1 Bilion Years Ago

9

Complex Life The single cell life, Prokaryote, comes together to form the Eukaryote. This more complex life form contains a nucleus and another pigment. Setting up the basic of cells which will, later on, become the multicellular life.

1.5 Bilion Years Ago

12

Multicellular Life The first multicellular life was formed, a worm-like organism consisting of two or more eukaryote cells.