Across
- 3. The most popular insterstellar gas
- 4. Shape of the Milky Way
- 8. Our home planet
- 9. The distance form the Earth to the Sun
- 10. The largest planet in the Solar System
- 13. Our planetary system
- 15. The farthest planet from the Sun
- 16. A collapsed star at the centre of our galaxy
- 17. The star the Earth orbit
- 18. The Earth natural staellite
- 20. Object made of rock, have it own atmosphere
Down
- 1. The closet planet to the Sun
- 2. The Earth's twin
- 5. Used to be a planet until 2006
- 6. Force pull the objects to orbit around the Sun
- 7. The Red planet
- 11. The planets with rings
- 12. Object made of rock, but too small to be a planet
- 14. Our galaxy
- 19. The clestial emits light