Across
- 1. atoms that are warm and flowing
- 4. radiation dump from supernova
- 6. group of solar systems
- 8. atoms that are cold and slow moving
- 9. the death of a star
Down
- 2. black hole at the center of a galaxy
- 3. atoms that are hot and free moving
- 5. large well of infinite gravity
- 7. atoms with split nuclei
- 10. largest star type