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Across
  1. 1. Which dwarf planet was considered a planet until 2006?
  2. 6. The man who discovered Uranus was called ________ Herschel
  3. 8. How many planets are there in our solar system?
  4. 9. Which asteroid is orbited by the Dawn mission?
  5. 10. Jupiter's "Great Red Spot" is a gigantic...
  6. 11. Earth's atmosphere is made up of 78%...
  7. 13. The soil on Mars is red because it contains...
Down
  1. 2. How many moons does Neptune have?
  2. 3. How many rings does Saturn have?
  3. 4. what did the ancient Greeks call the Sun?
  4. 5. What was the first successful Mars mission called?
  5. 7. What is our nearest major neighbouring galaxy?
  6. 12. Which planet is named after the Roman goddess of love and beauty?