Across
- 2. used to travel to space
- 5. earth only has one
- 8. first man on the moon
- 10. when the moon has no light, it makes a
- 12. planet with visible rings
- 13. hottest star in our solar system
- 14. farthest planet from the sun
- 15. smallest planet
- 17. our twin planet
- 18. we live here
Down
- 1. balls of gas that have what people call a tail
- 2. another name for moon
- 3. people who travel through space
- 4. gas planet
- 6. ice planet
- 7. when the moon passes the sun
- 9. rusty planet
- 11. no longer classified as a planet
- 16. balls made from gas