Across
- 3. there are 8 of them in our system
- 5. people who go to space
- 8. flying in the sky
- 9. something unknown
- 11. our home
- 13. pulls us towards earth
- 15. red planet
- 17. biggest rings
- 18. study of stars
- 20. the sun and other nearby planets
Down
- 1. find new things
- 2. you can live there
- 4. biggest planet
- 6. furthest spaceship from earth
- 7. going in a circle
- 10. planet with diamonds
- 12. the milky way
- 14. planet that smells like farts
- 16. number 1
- 19. smallest planet