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| Asteroid Belt Kuiper Belt Oort Cloud |
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| The Oort Cloud... |
| The Oort Cloud is the reason for the existence of long period comets. |
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| The Asteroid Belt... |
| The Asteroid Belt is a belt of asteroids that separate the inner planets from the outer planets. The inner planets include Mercury, Venus, Earth, and Mars. The outter planets include Jupiter, Saturn, Uranus, Neptune, and Pluto. |
| The .[Asteroid.Belt]. .[Kuiper.Belt]. .[Oort.Cloud]. |
| The Kuiper Belt... |
| The Kuiper Belt is the reason for the existence of short period comets. |
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