My Crossword 1

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Across
  1. 1. contains planets and other space elements
  2. 3. unique shape planet
  3. 5. farthest planet form the sun
  4. 6. fifth of the planets
  5. 7. name of our galaxy
Down
  1. 1. all planets rotate around
  2. 2. third of the eight planets
  3. 4. smallest and closest planet to the sun