jordans awesome space crossword

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Across
  1. 1. only planet so with life (so far)
  2. 3. he invented the telescope
  3. 6. the coldest planet
  4. 9. people always make jokes about this one
  5. 12. it gives us TV
  6. 14. Q.how do you know ______ is married? A.because it has so many rings
  7. 15. the first person the moon
  8. 19. the sun is one of them
  9. 20. the thing that gives us day
Down
  1. 2. the thing that gets you into space
  2. 4. the name of a person that gos into space
  3. 5. extremely hot and covered in sulphuric acids
  4. 7. not a planet anymore
  5. 8. known for its very very long storm
  6. 10. he discovered gravity
  7. 11. made a book proving the greek theory wrong
  8. 13. closest planet to the sun
  9. 16. one of the theory's that killed the dinosaurs
  10. 17. the name of a chocolate bar
  11. 18. only other planet livable apart from Earth