rootbrowseIAC-09D4session 1.-D4.31.-D4.3. Human Exploration Beyond Mars/Interstellar Precursors MissionsPapers1. An unmanned mission as a stepping stone to human venture beyond Mars2. THE “MAG-RING” CONCEPT AND OPENING THE SOLAR SYSTEM TO SUSTAINABLE HUMAN EXPLORATION AND DEVELOPMENT3. Need for parallel scientific research on Terra-forming4. Realistic Targets at 1,000 AU for Interstellar Precursor Missions5. astronomical advantages of future space observatories6. Gravity Lens Cosmological Mapping Mission7. Investigation of Nuclear Electric Powered Interstellar Precursor Missions8. Interstellar Radio Links Enhanced by Exploiting the Sun as a Gravitational Lens9. Propulsion for Initial Interstellar Precursor Missions