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 | I'm learning about this nebular hypothesis- I don't really get it. | |
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| What do you not understand? The sun formed in a cloud of hydrogen, there was a ton leftover and that caused the planets to form. | |
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| Well how did the planets form? | |
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| They formed in the protoplanetary disc via accretion. The terrestial planets got the dust and combined it into rock, the gas giants are made out of the gas. | |
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| What about the other areas of the solar system? Like the asteroid belt, the kuiper belt, and the Oort Cloud? | |
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| The asteroid belt is made out of small planetesimals that never combined. The kuiper belt and the oort cloud are made of bodies that formed closer to the sun and migrated out. All 3 are there due to the gravity of the gas giants. | |
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