what's out there???

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Across
  1. 2. It never ends.
  2. 3. 8+8=_ many rings for this planet.
  3. 8. Has a type of species.
  4. 9. A special comet.
  5. 11. It has 12 rings.
  6. 12. Closest to the sun.
  7. 13. Coldest planet.
  8. 14. May be on Mars.
Down
  1. 1. It has a few million stars in it.
  2. 4. Takes you to other planets.
  3. 5. Keeps you on the ground.
  4. 6. A Chocolate bar.
  5. 7. Formed around 4.6 billion years ago.
  6. 10. Drives on one other planet.