rootbrowseIAC-08C4session 7.-C3.57.-C3.5. Joint session on Nuclear Propulsion and PowerPapers1. powering space exploration in the united states: a history of rtgs, nuclear reactors, and outer planetary probes2. The Future of Radioisotope Power Systems for American Space Exploration3. Radioisotope Electric Propulsion (REP): A Near-term Approach to Nuclear Propulsion4. Development of a Nuclear Thermal Rocket in the Current Environment for Application to Lunar, Mars and Deep Space Missions5. Advances in Commercial Space Nuclear Electric Propulsion and Impact on Mission Scenarios6. Analysis of a Grooved-Ring Reactor Concept for Nuclear Thermal Propulsion