Across
- 4. The Blue Planet
- 6. Smaller bodies in orbit around the sun
- 7. The star at the center of solar system
- 8. Largest planet in the solar system
- 9. The Red Planet
Down
- 1. Distance travelled by light in a vaccum in one tropical year
- 2. Our Galaxy
- 3. Morning star
- 5. Earth's only natural satellite
- 7. Titan is the largest moon of ___________