Universe- Tealie Gaudet- 6

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