Across
- 1. small, rocky objects that orbit the Sun
- 3. first man on the moon
- 5. people who go to space
- 9. means of transport used to go to space
- 10. people who study science
- 12. also named the red planet
- 13. earth's only natural satellite
Down
- 2. competition in space
- 4. historical context of post world war 2
- 6. unidentified flying object
- 7. possible form of life on another planet
- 8. the smallest planet in the universe
- 11. center of our solar system