BEYONG EARTH: THE SOLAR SYSTEM

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Across
  1. 2. fifth biggest satellite
  2. 4. first space station of USA
  3. 6. planet of oceans
  4. 8. biggest satellite in the solar system
  5. 11. exploding stars
  6. 13. the most abundant element in the universe
  7. 14. biggest satellite of the dwarf planet Pluto
  8. 15. nearest Star on Earth next to sun
  9. 17. phobos and Deimos are its satellite
  10. 18. the coldest planet
  11. 20. fastest spinning planet
Down
  1. 1. hottest planet
  2. 3. it is a Latin term for "clouds"
  3. 5. located between Mars and Jupiter
  4. 7. nearest galaxy to Milky Way
  5. 9. name of the first animal sent into the space
  6. 10. the fastest revolving planet around the sun
  7. 12. a belt of Constellations
  8. 16. planet known for its "great dark spot"
  9. 19. latin name for sun