SPACE crossword!

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Across
  1. 1. galaxy we live in
  2. 4. the planet we live on
  3. 6. natural satelite
  4. 7. gas giants
  5. 8. the year the moon was visited for thew first time
  6. 9. balls of burning gas
  7. 10. closest star to earth
Down
  1. 2. person who explores space
  2. 3. ring less planets
  3. 5. the first trip to the moon's name
  4. 9. what astrologists study