Across
- 3. Our planet
- 4. An alien spaceship
- 7. It can be solar or lunar
- 9. An object in orbit around a planet
- 10. Closest planet to the Sun
- 11. A person who travels into space
- 13. The first black woman to travel into space
- 14. The telescope launched into space in 1990
- 15. The red planet
Down
- 1. First dog in space
- 2. Largest planet in our solar system
- 5. Our galaxy
- 6. A hole in space-time from which nothing can escape
- 8. An attractive force
- 9. The star at the centre of our solar system
- 12. A cloud of dust and gas in space