Universe- Tealie Gaudet- 6

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Across
  1. 3. standard unit to compare the size of stars with our Sun
  2. 4. the distance that light travels through space in a year
  3. 6. an instrument that collects light
  4. 7. a ball only 10 km across and strong gravity
  5. 8. a representation of an object
  6. 9. waves between radio and infrared waves
  7. 11. provide us with the colors we see
  8. 15. rotational center of a huge galaxy
  9. 16. self lumnious body of gas
  10. 17. all space and matter space contains
  11. 20. electromagnetic waves with longer wavelenghts than visible light
  12. 21. bands of dust that appear as dark ribbons against bright stars
Down
  1. 1. large cloud of gas
  2. 2. stars that spread out from the center of a spiral galaxy
  3. 3. light travels at 300,000km/sec
  4. 5. the transfer of energy
  5. 10. a galaxy that does not fit into any category
  6. 12. the death of a large star by explosion
  7. 13. the universe began as a small point and expanded rapidly
  8. 14. information gathered from experiments
  9. 18. beginning point something begins
  10. 19. large group of stars in space