Across
- 3. The red planet
- 4. Path one celestial body takes around another
- 5. Earth's natural satellite
- 8. Largest planet in the solar system
- 10. Cloud of dust and gas
Down
- 1. Dirty snowball in space
- 2. Space traveler
- 6. Star at the center of our solar system
- 7. Bowl-shaped depression on a planet's surface
- 9. Large system of stars