Across
- 2. the hottest planet
- 4. made of ice and rock
- 5. our type of galaxy
- 7. the only planet known to have life
- 9. the name of our galaxy
- 11. when a star explodes
- 12. earths moon
- 13. the biggest planet
- 15. the only planet to spin sideways
Down
- 1. the first dwarf planet
- 3. the thing in between mars and jupiter
- 6. made of gas
- 8. has visible rings
- 10. the star in our solar systems
- 14. made of rock