The Big, Big Sky

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Across
  1. 2. A feeling you get when you are sleepy
  2. 3. The planet you are on.
  3. 6. Goes around the Earth
  4. 7. Lots in the night sky
  5. 8. Saturn has lots of these
Down
  1. 1. The biggest planet in the Solar System
  2. 4. You need one to go to space
  3. 5. At the center of the Solar System
  4. 6. A red planet
  5. 7. A planet with lots of rings