Earth and Space crossword

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Across
  1. 2. Solar feature
  2. 4. Type of year when an extra day is added
  3. 5. Name given to several lunar missions
  4. 8. Longest and shortest days
  5. 10. These include full, new and gibbous
  6. 12. Atmosphere light display caused by solar wind
  7. 13. Caused by the Moon attracting the Earth's oceans
  8. 15. Fuel of the sun
  9. 16. Planet that has several similarities to Earth
Down
  1. 1. Object found in space
  2. 3. The eighth planet
  3. 5. Imaginary line joining the north and south pole
  4. 6. Largest planet
  5. 7. closest planet to the sun
  6. 8. second largest planet in the solar system
  7. 9. Occurs when the Moon passes into the shadow of the Earth
  8. 11. At the centre of the solar system
  9. 14. Time taken for the planet to rotate once