Across
- 2. The hottest planet in our solar system
- 4. The closest planet to the sun
- 6. Space rocks that fall to the surface of planets
- 9. explorer in space
Down
- 1. A group of stars that form a pattern
- 3. The largest planet in our solar system
- 5. The dwarf planet that was first thought to be a planet
- 7. The only planet with known life
- 8. Made of dust, rock and ice