This is a diagram showing the forming solar system.
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How the Solar System may have formed from a spinning cloud
Scientists think that the solar system formed out of a spinning cloud of hydrogen and helium molecules.
Because the cloud was spinning, it flattened into a frisbee shape, just like a ball of pizza dough becomes flat when a chef spins it in the air. The planets and the sun started to form after the cloud of gas became a flat disc.
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