Across
- 3. the increase/decrease of frequency in sound as an objects move closer/further from each other
- 5. a hunter who was changed into a constellation at his death
- 6. the speed recessing galaxies is connect to the distance from the observer
- 8. pattern of wave lengths that appear as coloured lines in a spectroscope
- 13. a system of millions of star held together by gravitational attaction
- 14. study of the stars to predict the future
- 17. the most excepted theory on how the universe was formed
Down
- 1. a group of stars that form a pattern
- 2. the rival theory
- 4. the brightest star
- 7. the cooling remnant of the hot big bang (abbreviation)
- 9. a collection of beliefs that are mistaken for scientific fact
- 10. an object visible in space
- 11. seventh brightest star
- 12. the branch of science that deals with space
- 15. a map formed in the shape of a sphere
- 16. the tenth brightest star