Big Back Ell's Express Puzzle

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Across
  1. 3. these send signals in the sky
  2. 5. in something
  3. 8. we live here
  4. 11. where people live in space
  5. 15. when it is night you see me in the sky
  6. 16. NASA launched this I guess it went on a voyage
  7. 17. there are lots of these we live in the milkyway
  8. 18. the more a planet has of this can make it do different things
  9. 19. beyond the solar system and past neptunes orbit
  10. 20. this a a massive telescope
  11. 21. candy bar
  12. 22. this pulls you down when you jump
  13. 23. we blank around the sun
Down
  1. 1. a huge field of gravity like a vacuum
  2. 2. buzz for toy story last name
  3. 4. earth is a
  4. 6. triple star system
  5. 7. for of water
  6. 9. little over an hour
  7. 10. another name for the north star
  8. 12. this appears in different colors and like a cloud
  9. 13. consellation of greek princess
  10. 14. shapes in the sky