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13,800 BCE
Big Bang
the beginning of the universe. Supernova explosions formed and ejected heavier elements such as iron. -
4600 BCE
Planetary Accretion / The Solar System
A nearby star's explosion created spinning stardust, forming the Sun at the center. It also formed small planets, including Earth -
4500 BCE
Earth
At first, Earth was molten and lacked an atmosphere and oceans. And it started to cool because the radioactivity started to decrease through the breakdown. Volcano released gas forming the atmosphere. As the atmosphere gets denser, the rain from it formed oceans -
4430 BCE
The Formation of the Moon
The moon formed 70 million years after Earth. Different theories. Created at the same time as Earth, A huge planet like Mars hit Earth. -
4400 BCE
Planetary Cooling of Earth
At first, Earth was molten and lacked an atmosphere and oceans. And it started to cool because the radioactivity started to decrease through the breakdown. Volcano released gas forming the atmosphere. As the atmosphere gets denser, the rain from it formed oceans -
3900 BCE
Late Heavy Bombardment
Materials left over from planet formation slammed into Earth. The increased activity most likely came from the movement of the giant planets, which sent debris raining down on the smaller rocky worlds. These bombardments may have brought water to the young planet.
It lasted about 20 million years to 200 million years 3.8 billion to 3.9 billion years ago.