Space Puzzle

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Across
  1. 3. outer belt
  2. 4. earth like
  3. 6. main planet
  4. 8. 7th
  5. 10. orbits sun
  6. 12. small
  7. 13. gas asteroid
Down
  1. 1. solar storm
  2. 2. sides of planet
  3. 5. comet part
  4. 7. circling planet
  5. 9. star
  6. 11. 1st satellite