Across
- 3. a man with greater abilities than others
- 4. done without thinking about it
- 5. take the place of
- 6. a star that has exploded
- 8. place on top of
- 10. greater than the speed of sound
- 11. a book about a person's life, written by that person
Down
- 1. watch and direct
- 2. a device that keeps aircraft, spacecraft, and ships moving in a particular direction
- 4. a car
- 5. a country with great power
- 6. things that cannot be explained by science
- 7. a large self-service grocery
- 9. the signature of a famous person