Across
- 2. unit length equal to the distance that light travels
- 4. distance the distance between any two corresponding points
- 6. tool collects light or other radiation
- 7. transfer energy through matter space as electromagnetic
- 8. a point beginning point at which something begins
- 9. electric radiation consisting of electric and magnetic waves
- 12. it differs a galaxy that does not fit into any category
- 14. waves the change of wavelength that allows us to determine if an object is moving
- 15. small point a theory that say the universe started as a small point
- 16. theory explanations for a broad range of observations
- 19. short electromagnetic waves with shorter wavelength
- 21. medical waves that are used for medical reasons
- 22. strong an object with more than four solar masses
Down
- 1. star formation Large cloud of gas and dust
- 3. relation vast arrangement of electromagnetic waves
- 5. spiral area of stars that spread out from the center of spiral galaxy
- 10. everything all of space
- 11. high energy electromagnetic waves with high energy
- 13. explosion the death of a star
- 17. ribbons bands of dust
- 18. big huge group of stars that rotate around a center
- 20. yellow luminous celestial body around which the earth and other planets revolve