Across
- 3. A chunk of rock orbiting a planet
- 5. When the moon/sun is in shadow
- 10. The study of space
- 11. Big chunk of rock floating through space
- 12. Star in the centre of the solar system
- 14. A device used to look into space
- 16. An object orbiting another object
- 17. Going around the sun
- 18. seventh planet from the sun
Down
- 1. Forth planet from the sun
- 2. Closest planet to the sun
- 4. Furthest planet from the sun
- 6. Dwarf planet
- 7. third planet from the sun
- 8. The surroundings of a planet
- 9. A ball of rock/gas orbiting the sun
- 13. Biggest planet
- 15. Second planet from the sun
- 16. Known for its rings