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Earth started orbiting around the sun and gradually falling into the orbit between Venus and Mars.
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Earth formed and its crust cooled to become solid, the core was formed. As the collision caused the earth to heat up, the heavier materials began to sink while the lighter materials rose. This formed the different layers of Earth's core
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An asteroid the size of Mars smashed into Earth. The energy that impacted the smash has caused the rest of the asteroid to orbit around Earth, and that's Moon.
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planetary cooling formed the planet into a molten planet. Clumps of asteroids, meteors, and comets helped formed the planet into a sphere.
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The oldest known thing to have formed on Earth, zircon, formed along with solid crust.
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it's called Lithosphere
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The frequent collisions on Earth and Moon within the inner Solar System
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