Across
- 3. Extremely red shifted light waves left over from the early years of the universe
- 6. The man who discovered that the universe is expanding,and has been since its creation.
- 7. One of the most abundant elements in our galaxy, created within the first minutes following the big bang.
Down
- 1. The age of the universe
- 2. The infinitely small and dense point that the universe was born as
- 4. The lines that appear on a visible light spectrum when they contain a certain element.
- 5. When galaxies move further away from us their spectra _____. Example of the Doppler effect