Across
- 2. A large body that orbits a star.
- 3. The biggest planet in our solar system.
- 5. The farthest planet from the Sun.
- 7. The red planet.
Down
- 1. The planet with the biggest rings.
- 4. The center of our solar system.
- 6. The only planet known to have life.
- 7. An object that orbits a planet.