Across
- 1. one of the reasons pluto was demoted and has only one moon called MK2
- 4. 1000 of this would fit in the sun
- 7. this trans-Neptunian object has one moon called weywot (look it up)
- 8. mars' bigger moon
- 10. has a moon so comprable to this body's size, they actually orbit each other
- 13. the smallest planet in our solar system
- 14. this moon is under consideration for terraforming
- 16. the outermost dust of our solar system and where comets are formed
- 20. this seperates the rocky planets from the gas giants
- 22. a Galilean moon with a liquid ocean under its crust
- 23. this planet is covered in iron
- 24. the largest dwarf planet
- 27. the dwarf planet farthest away from the sun
- 28. home of the great blue spot
- 29. the only moon of pluto
Down
- 2. the only known habitable planet
- 3. roughly the same size as Earth, but spins the opposite way
- 5. was hit by an asteroid while developing
- 6. a Galilean moon and the first moon to be discovered after our own
- 9. Mark Twain was born and died when this passed
- 11. the brightest object in the sky
- 12. mars' smaller moon
- 15. seperates the planets from the dwarf planets
- 17. the largest of the Galilean moons
- 18. known for having an unexplainable white dot
- 19. a Galilean moon the size of Mercury
- 21. is elliptical in shape since it spins so fast
- 25. has at least seven layers of rings
- 26. the scientific name for our moon