Across
- 2. What is the hottest planet?
- 6. Is the sun a planet or star?
- 8. What do astronauts fly inter space on?
- 9. Who was the first person to walk the moon?
- 10. What is the biggest planet?
Down
- 1. What galaxy contains our Solar System?
- 3. What planet has rings around it?
- 4. How many planets are in the solar system?
- 5. What force holds us to earth?
- 7. How many moons does Neptune have?