space crossword puzzle

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Across
  1. 4. only planet with water
  2. 5. goes around space
  3. 8. the largest thing that orbits the earth
  4. 9. a planet with rings
Down
  1. 1. spheres that float in space
  2. 2. orbits the earth
  3. 3. second planet
  4. 6. person in space
  5. 7. very hot