the Universe and more

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Across
  1. 2. the constellation that looks like a scorpion
  2. 5. is the different from weight but causes it
  3. 7. the brightest star
  4. 10. what the milky way is
  5. 11. major the constellation that includes the big dipper
  6. 12. the first object sent into interstellar space
  7. 15. what keeps us from floating
  8. 17. the time to orbit the earth
  9. 21. HST
  10. 25. a the daughter of Cassiopeia
  11. 26. what we use to transmit signals
  12. 27. a orb that rotates around a sun
Down
  1. 1. the twin constellation
  2. 3. a pattern of start to make a picture
  3. 4. a objects resistance to motion
  4. 6. a belt of asteroids
  5. 8. a ball of gas
  6. 9. the first element
  7. 13. a whole rotation around a sun or planet
  8. 14. a space station that is past national
  9. 16. closest star to earth
  10. 18. the galaxy we live in
  11. 19. minor the constellation that includes the little dipper
  12. 20. what planet we live on
  13. 22. a collapsed star
  14. 23. The scientific name for the north star
  15. 24. The distance to measure far objects in space
  16. 28. a giant cloud of gas and dust