Across
- 1. The creation of the universe
- 3. Theory of relativity
- 5. Old waves that were from the creation of the universe
- 8. The scientist who figured out that galaxies are moving away from each other
- 9. Everything
- 10. Hydrogen, helium, etc.
Down
- 2. Super small, and the base of all matter
- 4. All spiral galaxies have this in their center
- 6. Could be big or small, but always something
- 7. Different types of light