The Origin of the Solar System

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The Origin of the Solar System
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• Solar system formed about 4.6 billion year ago,
  when gravity pulled together low-density cloud of
  interstellar gas and dust (called a nebula)

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Overview of Solar Nebula Theory

• Solar Nebula.
• Contraction to rotating disk.
• Cooling causes condensation of particles.
• Particle Collisions form larger bodies.
• These accrete to form planets.

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