NEBULAR HYPOTHESIS

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• It took almost 10 million years to form a solar system after our solar nebula collapsed.
• The collapse was sparked by a supernova explosion

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• When the collapse occurred it condensed and has and dust were more attracted to each other.
• The nebula couldn't keep it together, thus formed a protostellar disk with a warm center.

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• Particles of dust that orbited the center of the solar nebula or the protosun collided and began to develop into bigger masses
• Small planets and a proplanetary disk formed as the masses collided and fused together

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• The planetismals began colliding and started to form the planets we know today.
• The new planets started orbiting and spinning around the new sun.

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• The sun started to form when the matter in the nebula began to pull towards the center
• The center got so hot that helium gas was formed and the hot center released a lot of energy
• It balanced the gravitational pull to the center and the sun was formed.

After that the terrestrial planets and gas giants were formed to create our solar system!