Across
- 6. Bands of dust that appear as ribbons
- 9. An instrument use for better observation
- 11. waves shorter than visible light
- 13. all of the matter in space
- 14. the transfer of energy through space
- 15. Information obtained from experiments
- 16. grouping of the stars
- 17. Waves with longer wavelengths in visible light
- 19. Waves that are used in medical purposes
- 20. Waves that are admitted by a radioactive atom
- 21. visible light spectrum
- 22. electromagnetic waves
- 24. Unite that is used to compare other stars to our sun
Down
- 1. the place our solar system is a part of
- 2. A theory that says the way universe began
- 3. A graph that shows the stars temperature and their luminosity
- 4. The change in wavelength
- 5. The distance between two points on a wave
- 7. a large star explosion
- 8. a cloud of dust in space
- 10. the closest star in our solar system
- 12. length equal to the distance light travels
- 18. stars that spread out from a spiral galaxy
- 23. Beginning point