Across
- 3. spacecraft which measured differences in the temperature of the cosmic microwave background
- 4. what is the explosion called that expanded the universe?
- 6. pattern of colors is called a?
- 8. energy carried by radiated waves
- 11. (cosmic background explorer)
- 12. this telescope is good for producing and recording spectra for examination during experiments
- 13. who discovered that galaxies were moving away from each other?
- 14. who discussed his theory with a Belgian priest?
- 15. is the transmission of energy in waves
- 16. Arno Penzias and Robert Wilson were? (think occupation)
- 18. what is the term used when describing how far away an object is in space?
- 20. (national aeronautics and space administration)
Down
- 1. "Hubble had estimated the distance from earth to 46" what? (direct textbook answer)
- 2. most powerful and useful invention to help astronomers
- 5. who invented the telescope?
- 7. these celestial objects radiate light waves, radio waves and X-rays
- 9. term for all objects in the sky
- 10. "Hubble noticed that the light of the galaxies he was studying showed" what? (direct textbook answer)
- 17. the galaxy we live in
- 19. approximately this many years ago is when the Big Bang happened