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the beginning of the universe. Supernova explosions formed and ejected heavier elements such as iron.
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A nearby star's explosion created spinning stardust, forming the Sun at the center. It also formed small planets, including Earth
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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
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The moon formed 70 million years after Earth. Different theories. Created at the same time as Earth, A huge planet like Mars hit Earth.
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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
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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.