Across
- 3. Large rings of ice, rock, and dust circle the planet
- 4. The smallest and closest planet to the Sun.
- 6. The outer 4 planets
- 7. The largest planet; has 67 moons
- 10. The Blue Planet; only known planet to support life.
Down
- 1. Earth's twin, covered by clouds of gas.
- 2. The furthet from the Sun
- 5. The inner 4 planets
- 8. This planet spins on its side.
- 9. Explored by rovers; thought to possibly have once harbored life.