Across
- 2. The smallest planet in our solar system.
- 4. The dwarf planet that used to be classified as a planet.
- 8. Earth's evil twin.
- 9. Saturn's largest moon.
- 10. The thirteenth planet from the sun, the fifth dwarf planet from the sun.
Down
- 1. A doughnut-shaped region of icy objects beyond the orbit of Neptune
- 3. Also called the North Star, it is a supergiant with eight times the mass of our sun.
- 5. The biggest moon in the Milky Way.
- 6. A small rocky body orbiting the sun.
- 7. The star in our solar system that produces heat.