SPACE!!!!!

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Across
  1. 4. starts as a nebula
  2. 5. has many rings
  3. 6. most of it is made up of water
Down
  1. 1. someone named Haley named it
  2. 2. planet smaller than other regular sized planets
  3. 3. now known for its great red spot
  4. 4. the only star in our solar system