Across
- 3. I am the biggest one
- 6. To go around in circles
- 7. there used to be 9 of them, but now only 8.
- 13. A rock that moves around the solar system
- 14. the system of the sun and the planets around it.
- 15. Alien or things not from earth.
- 17. You can see me at night
Down
- 1. a force
- 2. aliens fly in this
- 4. Everything out there. Nobody knows how big it is.
- 5. There is nothing here
- 8. I study science
- 9. To look for something
- 10. The sun is one of them
- 11. Trip/travel
- 12. Milky Way
- 16. I have rings around me