Across
- 3. The smallest planet and closest to the Sun
- 4. Icy body that develops a tail near the Sun
- 6. Once considered the ninth planet
- 8. Small rocky body orbiting the Sun
- 10. The path a planet takes around the Sun
- 11. The hottest planet in the Solar System
- 14. The farthest planet from the Sun
Down
- 1. A system of billions of stars
- 2. The largest planet in the Solar System
- 3. Earth's natural satellite
- 5. Known as the Red Planet
- 7. Planet with the most famous rings
- 9. The star at the center of the Solar System
- 12. The only planet known to support life
- 13. A planet that rotates on its side