Universe vocab-David Bohanon-4th

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Across
  1. 2. a unit of length equal to the distance that light travels through space in 1 year
  2. 3. rotational center of a huge galaxy such as the Milky Way Galaxy
  3. 4. all space and the matter space contains
  4. 6. a large grouping of stars in space
  5. 7. to see far away
  6. 11. a galaxy with a bright center and very little dust or gas
Down
  1. 1. vast arrangement of electromagnetic waves in relation to their wavelengths
  2. 5. how fast light travels,300000km/sec
  3. 8. a death of a large star by explosion
  4. 9. large cloud of gas and in interstellar space;the location of star formation
  5. 10. areas of stars that spread out from the center of a spiral galaxy
  6. 12. bands of dust that appear as dark ribbons against the bright stars in a galaxy