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Radiation pressure
(pressure of light)
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See present day effects in comets
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Most important effect
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Solar Wind
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Strong solar winds from young T Tauri stars
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Will see present day effects in comets
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Sweeping up of debris into planets
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Late Heavy Bombardment
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Ejection
of material by near misses with planets
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Like
“gravity assist maneuvers” with spacecraft
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Origin
of the comets
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