tess' space crossword

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Across
  1. 2. the biggest planet in our solar system
  2. 3. when a dying star explodes
  3. 5. the point in space directly above you
  4. 6. rock and dust that will fly through space
  5. 9. the first man to the moon
  6. 11. the hottest planet
  7. 13. a person who travels into and explores space
  8. 15. venus
  9. 17. measurement of how fast light travels
  10. 18. the father of astronomy
  11. 19. a chemical in the air we breath
Down
  1. 1. the third layer in the earths atmosphere
  2. 4. a form of transport people use to get in and out of space
  3. 7. there are eight in our solar system
  4. 8. the ruler of the death star
  5. 10. when the moon gets in the way of the sun
  6. 12. group of stars and planets
  7. 14. the name of a telescope
  8. 16. a very large star