Contents 1. Motivations for deep-space travel 2. The realms of space 3. Tomorrow's targets 4. Space propulsion today 5. The incredible shrinking spaceprobe 6. The nuclear option 7. 21st century starflight 8. on the technological horizon 9. Exotic possiblities 10. Of stars, planets and life 11. Life between the stars 12. Conscious spacecraft 13. Meeting ET 14. Interstellar message plaques