Across
- 3. A huge cluster of dust and gas holding billions of stars and solar systems.
- 4. Stars become this after running out of nuclear fuel.
- 5. Another name for northern lights.
- 6. Largest planet in our solar system.
- 8. Distance traveled by light in ONE year.
- 9. Occurs about 2-5 times a year.
- 12. The final stage of a large star's life.
- 13. Completely burns up when hitting Earth's atmosphere
- 14. A planet in dark-blue color and a ice particle ring.
Down
- 1. When a white-dwarf has no longer shines light.
- 2. When a small star blows its outer layers.
- 7. A cluster of planets that orbit one or numerous stars
- 10. A theory that explains how the universe began.
- 11. Consists of ice and dust and originates from Kuiper Belt and Oort Cloud.