Astronomy crossword

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Across
  1. 2. rocket very top of rocket?
  2. 4. stage of getting someone to the moon?
  3. 7. electro-magnetic waves carried through space and matter?
  4. 9. what telescope has convex lenses?
  5. 11. Musk who founded the space x corporation?
  6. 13. electromagnetic radiation differs in?
  7. 14. probe what gather and transmits information to earth? satellite a space station is considered a?
  8. 17. earth is what type of satellite?
  9. 18. what killed three astronauts on Apollo 11?
Down
  1. 1. how long are radio telescopes useful for?
  2. 3. Apollo mission that was aborted?
  3. 5. "Houston we have a_____"
  4. 6. satellite built and launched by humans?
  5. 8. ____Shepard was the first American in space?
  6. 10. first space station to orbit earth?
  7. 12. name of module that lands on the moons surface?
  8. 14. many lunar landings were there?
  9. 15. telescope that had a mistake in shaping mirror?
  10. 16. Apollo mission to land on the moon?