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Review
of Solar System Formation
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Big
bang -- Universe mostly hydrogen and helium
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Big
clumps form galaxies
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Clumps
in galaxies form stars
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Some
stars blow up (Supernova) creating and distributing heavier elements
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Material
re-clumps, starts rotating, forms protoplanetary disk
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Clumping
in disk forms/of planetesimals
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Planetesimals
form protoplanets
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Outer
protoplanets accrete gas
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Sun
burps (T-Tauri wind) which clears remaining gas out of solar system
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