Across
- 2. the name of our galaxy
- 3. orbits around the Earth
- 5. the red planet
- 7. a planet with many rings
- 8. the closest planet to the sun
- 10. the biggest planet in the solar system
Down
- 1. was once a planet
- 4. a space research company
- 5. a space rock
- 6. the biggest star in our solar system
- 9. this planet was formed 4 billion years ago