Across
- 2. is a large cloud of gas
- 4. is a group of stars
- 6. bang theory states that the universe formed in an instant
- 7. dwarf blue-white core
- 8. first in Greek
- 10. a explosion
- 11. all of the space and everything in It
Down
- 1. a more accurate scale of the entire solar system
- 3. a bright light
- 5. the brightness on a star
- 9. a brightness seen from earth