Across
- 2. Coldest planet in the solar system.
- 5. Atmosphere protects planet from radiation and keeps planet warm.
- 7. Has the shortest orbit around the sun.
- 8. encircled by 6 rings.
Down
- 1. Known as the red planet.
- 3. Its nickname is "Ringed Planet".
- 4. The 5th planet away from the sun.
- 6. Earth's sister planet.