Out of this World

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Across
  1. 5. Makes your voice high.
  2. 8. is a constellation.
  3. 9. It holds us to the ground.
  4. 10. We live in it.
  5. 11. It is a constellation.
  6. 12. Things on the sun.
  7. 14. Coldest planet.
  8. 15. It flyes in the sky.
Down
  1. 1. It is a moon.
  2. 2. Iron planet.
  3. 3. The first person to set foot on the moon.
  4. 4. Has the highest mountains.
  5. 6. Ring are made out of it.
  6. 7. It holds the Earth.
  7. 13. You stars fires with it.