Across
- 6. The densest planet in the solar system
- 8. The tiny dense core of a star
- 9. The product of Helium fusion in a star
Down
- 1. The final stage of most stars life
- 2. Hydrogen nuclear fusion
- 3. an infinitely dense object
- 4. ball of hot plasma and gases
- 5. Rocky celestial body created by colliding planets
- 7. Great Red Spot