Space

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Across
  1. 3. the third planet from the sun
  2. 6. envelope of gases that surround a planet
  3. 8. the second closest planet to the Sun
  4. 12. the sixth planet from the Sun
  5. 13. the 'Red Planet'
  6. 15. the eighth planet from the Sun
  7. 16. A giant ball of hot gas
Down
  1. 1. the largest planet
  2. 2. large group of stars, dust, gas
  3. 4. someone trained to be a crew member of a spacecraft
  4. 5. instrument used to view objects in outer space
  5. 7. the closest planet to the Sun
  6. 9. seventh planet from the Sun
  7. 10. a planet that goes round another planet
  8. 11. mall solar system body that orbits the sun
  9. 14. a star and the biggest object in the Solar System