Space Crossword!

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Across
  1. 3. an invisible layer of the planet
  2. 5. a type of transportation that you can go to space
  3. 6. one of Jupiter’s moons
  4. 7. A planet like Jupiter or Saturn
Down
  1. 1. a giant galaxy
  2. 2. the holes on the moon
  3. 3. People who go to space
  4. 4. not a actual solar system planet