Across
- 4. Smallest planet in our solar system.
- 6. A planet with a heart shape on its surface.
- 8. A planet where it is impossible to stand on.
- 9. A planet that appears blue and green from space.
- 12. A belt with a ring of icy bodies outside of Neptune’s orbit.
Down
- 1. A planet that is invisible to the naked eye.
- 2. Closest star to the Earth.
- 3. A planet with 92 moons.
- 5. Planet that is named after the Roman God of war.
- 7. A belt that is located between mars and Jupiter.
- 10. The coldest planet.
- 11. One day on this planet is longer than one Earth year.