Across
- 5. person who introduced the theory of relativity
- 6. how many types of galaxies are there
- 7. type of galaxy that appears to be in a spiral
- 8. contains everything that exists
- 10. What we call a dead star
Down
- 1. one of the first elements in the universe
- 2. last name of person who introduced the theory that galaxies are moving away
- 3. Beginning of the universe
- 4. the beginning building block of the universe
- 9. A spectrum used to measure light