Across
- 5. explosion of a star
- 7. man in space
- 9. get to space
- 10. giant cloud of dust and gas in space
- 11. billions of stars and their solar systems
Down
- 1. first man on the moon
- 2. gas giant in our solar system
- 3. combination of stars
- 4. ball of fire
- 6. our planet
- 8. life in space