Across
- 3. planet beleived to have crashed into Uranus during formation
- 5. planet beleived to have been ejected around 4.3 billion years ago
- 9. the third dwarf planet from the Sun, largest one
- 12. one of the larger dwarf planets, along with Haumea
- 13. Earth's "evil twin sister"
- 14. the most eliptical-shaped body in the Solar System
- 16. the area that goes between Mars and Jupiter's orbit
- 17. the center of mass in our solar system
- 19. the second dwarf planet from the Sun, smallest one
- 20. the red planet, has two moons
- 21. the Earth's moon
- 22. hypothetical planet beleived to orbit closer than Mercury
- 23. the first dwarf planet from the Sun
Down
- 1. spherical version of the Kuiper Belt or Asteroid Belt, where comets come from
- 2. Biggest planet in the Solar System, has faint rings
- 4. the planet you and me live on, has one moon
- 6. the seventh planet from the Sun, tilted 98 degrees on the Y axis
- 7. the maximum limit the Sun's gravity goes
- 8. Most beautiful planet in the Solar System, has bright and beautiful rings
- 10. planet beleived to have collided with Earth during formation
- 11. the bigger brother of the Asteroid Belt
- 15. brown dwarf beleived to exist somewhere in the Oort Cloud
- 18. the eighth planet from the Sun, beautiful Blue
- 20. first planet from the Sun