Space crossword Nathen

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Across
  1. 3. believing the sun is the center
  2. 6. revolving of one object around another
  3. 7. lighter part of a shadow
  4. 9. going around one object
  5. 10. space objects that revolve
Down
  1. 1. planet too small to be one
  2. 2. small space object made of ice and dust
  3. 4. space objects that hit earth
  4. 5. small space objects
  5. 8. small space rocky bodys