Across
- 4. A theory of gravity
- 5. Scientist who discovered galaxys were moving away from each other
- 7. Residual energy left over from the origin of universe
- 8. Scientist who formed the theory of relativity
- 9. The spectrum used to study light
- 10. A dead star
Down
- 1. The particles that help the objects form in our universe
- 2. People who study stars
- 3. A widely accepted theory between scientists explaining the start if the universe
- 6. We live in the milky way