Across
- 1. provides visible light spectrum
- 3. distance between any two corresponding pionts
- 4. bands of dust that appear as dark ribbons
- 5. rotational center of a huge galaxy
- 8. change in wavelength that allows to determine if an object is moving toward us or away
- 9. large cloud of gas and dust
- 10. stars that spread out from the center of a spiral galaxy
- 12. all space and the matter space contains
- 13. electromagnetic waves longer than visible light
- 15. large grouping of stars
- 17. electromagnetic waves that are between radio waves and infrared waves
Down
- 2. how fast light travels 300,000km/sec.
- 6. galaxy with a bright center and distinct long arms
- 7. transfer of energy through matter or space as electromagnetic waves
- 11. the death of a large star by explosion
- 14. eloectromagnetic waves with long wavelengths and low frequencies
- 16. waves that are very high energy and are use in medical and astronomical applications