Across
- 2. is the biggest planet in the Solar System
- 6. is one of the coldest planets
- 8. takes its name from the Roman god of war
- 9. biggest star in our galaxy
Down
- 1. the closest planet to the sun
- 3. is the seventh closest planet to the sun
- 4. has at least 18 moons
- 5. It’s about the same size as Earth
- 7. It is the only planet on which we know there is life