K. Emmerich space puzzle

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Across
  1. 1. a group of stars that we think have a meaning
  2. 4. galaxy we live in
  3. 7. space probe launched by NASA
  4. 8. famous telescope
  5. 9. the craft place of stars
  6. 12. newtons 1st law
  7. 13. they have a core and there oval like
  8. 16. are galaxy is held by a big
  9. 17. triple star system in the southern constellation and has three stars
  10. 18. weight is gravity times
  11. 20. hour and a half minutes
  12. 21. big Space station
  13. 22. the first element
  14. 23. a force that pulls in
Down
  1. 2. takes to light a year to get here
  2. 3. up in the sky that orbits the Earth but is not the moon
  3. 5. the moon is on earth
  4. 6. there are about 5 of these in the big dipper
  5. 10. we live in the Milky Way _____
  6. 11. Most things that hit Earth come from this belt
  7. 14. is a plant that has life on it
  8. 15. is another name for the north star
  9. 19. is right next to the Milky Way Galaxy