Across
- 4. A group of many solar systems.
- 6. The thing that is inbetween Mars and Jupiter.
- 9. What the planets in our solar system orbit.
- 11. Farthest planet away from the sun in our solar system.
- 12. The smallest planet in our solar system.
Down
- 1. A dwarf planet in our solar system that used to be a normal planet.
- 2. What is a person who goes into space called?
- 3. The ____ orbits the Earth.
- 5. What the sun is composed of.
- 7. A thing in space where gravity is so strong, not even light can escape it.
- 8. The biggest planet in our solor system.
- 10. The hottest planet in our solar system.