Across
- 2. Nicknamed the Red Planet
- 6. The second planet from the sun
- 9. The galaxy our Solar System is in
- 11. An object which moves around a star
- 13. A person trained to travel in a spacecraft
- 14. The planet we live on
- 15. The seventh planet from the sun
- 16. A vehicle that launches into space
- 17. Revolves around the Earth
- 20. The smallest planet in our Solar System
Down
- 1. Four planets in our Solar System are known as _ Planets
- 3. Balls of gas held together by gravity
- 4. Billions of stars, gas and dust held together by gravity
- 5. Made up of the sun and the planets which orbit it
- 7. The furthest planet from the sun
- 8. Known for its rings
- 10. The star in the centre of the Solar System
- 12. No longer considered a planet in our Solar System
- 18. The force that attracts people to the Earth
- 19. The largest planet in our Solar System