Incoming Resources
- The giant leap, mankind heads for the stars, Adrian Berry
- Interstellar, the search for extraterrestrial life and our future in the stars, Avi Loeb
- Assessing potential propulsion breakthroughs, Marc G. Millis ; prepared for the New Trends in Astrodynamics and Applications II, An International Conference sponsored by NASA Headquarters and Princeton University, Princeton, New Jersey, June 3-5, 2005
- The challenge to create the space drive, Marc G. Millis