Space

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Across
  1. 1. all celestial bodies exist in this
  2. 3. second planet from the sun
  3. 6. planet closest to the sun
  4. 8. passes by Earth every 75 years
  5. 9. nothing but light can escape
  6. 11. center of our solar system
  7. 13. large rocky body in outer space
  8. 15. many solar systems grouped together
  9. 16. this planet is furthest from our sun
  10. 19. group of planets and their sun
  11. 21. our home
  12. 22. this planet is tilted on its side
Down
  1. 2. this planet has spectacular rings around it
  2. 4. any planet beyond our solar system
  3. 5. small rocky body in outer space
  4. 7. celestial body made of ice
  5. 10. space probe launched in 1977
  6. 12. orbits the earth
  7. 14. this planet has a large red spot
  8. 17. once a planet, now classified as a planetoid
  9. 18. the red planet
  10. 19. a sun that is very far away
  11. 20. search for extraterrestrial intelligence
  12. 23. unidentified flying object