Across
- 2. the universal force of attraction acting between all matter
- 8. CMB
- 9. The scientist that discovered galaxies are moving apart
- 10. all matter and space that exist
Down
- 1. these particles are what all matter is composed of
- 3. The scientist that gave us a better understanding of gravity
- 4. The theory of the beginning of the world
- 5. one of the first elements in the universe
- 6. a continuous area
- 7. a spectrum used to study light