Solar systeme crossword

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Across
  1. 4. Neil Armstrong landed here
  2. 5. remains from the formation of the solar system
  3. 7. Geocentric beliefs
  4. 8. Leo the lion
  5. 9. Bigdipper
Down
  1. 1. Heliocentric beliefs
  2. 2. North star
  3. 3. "dirty snowball"
  4. 4. A burning floating rock moving around space
  5. 6. Small planet with its own gravity.