Across
- 3. how big is the universe
- 6. a comet that moves close to the sun is possibly from which cloud
- 7. mars mountain is about how many times the height of mount everest
- 8. what matter(other than a star and a planet)is part of the solar system
- 9. the milky way is part of the...
- 12. what's the only planet that's visible from earth
- 13. what planet has the biggest rings
- 14. all planets orbit around our what
- 15. what's in mars soil that gives it it's rusty look
Down
- 1. what's the name of mars moon thats moving closer to mars
- 2. what color is the hottest star
- 4. the centre of a comet is called a what
- 5. what planets name did scientists recently try to change
- 10. mars is named after which groups war god
- 11. what planet is now no longer a planet