Across
- 3. Found that galaxies are moving apart
- 6. what the universe was made of when it began
- 8. used to study light
Down
- 1. made up of all matter and space that exists
- 2. the branch of science to studys space and the physical universe
- 4. short wavelengths showing that something is moving towards us
- 5. a theory of how the universe started and is expanding
- 6. gave us a better understanding of gravity
- 7. leftover energy/radiation from the big bang
- 9. shift proves our universe is always expanding