rootbrowseIAC-13C4session 55. Special session: Thematic Workshop with Professionals and StudentsPapers1. MEMS Cold Gas Microthruster on URSA MAIOR Cubesat2. REACTION CONTROL SYSTEM USING HYBRID MICRO-THRUSTERS FOR GUIDED SPACE VEHICLES3. Exploratory Development of Green Propellants4. Fire test of 500 Newton bipropellant thruster with propellant hydrogen peroxide and kerosene.5. Development of a 35kN Thrust Hydrogen Peroxide/Kerosene Stage-Combustion Engine6. application of advanced propulsion technology in space transportation7. Electric propulsion for interplanetary missions in the Solar System: trade studies and potential applications.8. SPACE PROPULSION ROCKET ENGINES: WHERE IS THE PROGRESS?