Alanas puzzle

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Across
  1. 2. rocky planets
  2. 4. gaseous planets
  3. 7. "shooting star"
  4. 8. chunks of rock or debris
  5. 10. imprisoned for this beliefs
Down
  1. 1. first scientist that belived Heilocentric
  2. 3. All planets except mercury and Venus have one.
  3. 5. "dirty snowball"
  4. 6. meteor that reaches earth surface
  5. 9. coldest planet