Across
- 1. length distance between any two corresponding
- 4. all space and the matter space contains
- 5. year light travels through space 1 year
- 7. the transfer of energy through matter of space
- 8. large cloud of gas
- 10. center rotational center of a huge galaxy
- 11. radiation radiation consisting of electric
- 13. waves provide us with light
- 14. shift the change in wave length
- 17. the death of a large star explosion
- 19. electromagnetic waves
Down
- 2. spectrum electromagnetic waves
- 3. arms area of stars spread out from the center
- 6. data info from experiments
- 9. of light 300,000km/sec
- 12. between radio waves and infrared
- 15. lanes bands of dust
- 16. large grouping of stars
- 18. hole an object with more than four solar masses