Across
- 4. The name of our moon
- 7. Category given to Jupiter's major moons
- 9. The bright fate of a star
- 12. Only move with an atmosphere
- 13. Only dwarf planet in the asteroid belt
Down
- 1. Sound on its side
- 2. Present at the center of our galaxy
- 3. Largest volcano in the solar system
- 5. Has a heart on its surface
- 6. A comet known to appear every 70 years
- 8. Famous spacecraft that orbited Saturn
- 10. Earth's twin sister
- 11. The red planet