Across
- 4. Known as the Red Planet
- 5. Planet famous for its stunning ring system
- 7. Center of our solar system
- 8. The farthest planet from the Sun
- 10. A system of stars; our solar system is in the Milky Way
- 13. A dwarf planet once classified as the ninth planet
- 15. Structures made of ice rock and dust around some planets like Saturn
- 16. A celestial body made of ice and dust with a glowing tail
- 17. The largest planet in our solar system
Down
- 1. The smallest planet and closest to the Sun
- 2. Force that keeps planets in their orbits
- 3. Earth's sister planet with a thick atmosphere
- 4. Earth's natural satellite
- 6. Planet that rotates on its side
- 9. Event when one celestial body moves into the shadow of another
- 11. A rocky object that orbits the Sun, mostly found between Mars and Jupiter
- 12. The only planet known to support life
- 14. The path a planet takes around the Sun