Across
- 1. All space and the matter space contains
- 2. vast arrangement of electromagnetic waves in relation to their wavelenghts
- 4. a galaxy with a bright center and very little dust or gas
- 6. the change in wavelengths that allows us to determine if an object is moving toward us or away from us
- 7. electromagnetic waves that are between radio waves and infrared waves in electromagnetic spectrum
- 8. rotational center of a huge galaxy such as the milky way galaxy
- 10. electromagnetic waves with longer wavelengths than visible light
- 12. Bands of dust that appear as dark ribbons against the bright stars in a galaxy
- 13. the death of a large star by explosion
- 14. how fast travels
- 16. electromagnetic waves with very high energy and no mass or change; emitted by the nucleus of a radioactive atom
- 17. electromagnetic waves that are very high energy and are used in medical and astrnomical applications
- 18. Large cloud of gas and dust in interstellar space; the location of star formation.
- 19. the distance between any two corresponding points that are adjacent on a wave
- 20. a representation of an object that is accurate in its proportions to the actual object
Down
- 1. electromagnetic waves with a shorter waveslength than visible light
- 3. radiation consisting of electric and magnetic waves that travel at the speed of light
- 5. galaxy with a central bulge or bar with short arms, if any are persent
- 9. electromagnetic waves with long wavelengths and low frequencies
- 11. the distance between any two corresponding points that are adjacent on a wave
- 15. provide us with visible light spectrum, the colors we see