rootbrowseIAC-20A5session 4-D2.84-D2.8. Space Transportation Solutions for Deep Space MissionsPapers1. A GATEWAY SUPPLY MISSION SCENARIO AND FLIGHT PLAN WITH UPGRADED H3 AND HTV-X3. Assessment of On-Orbit Cryogenic Refueling: Optimal Deport Orbits, Launch Vehicle Mass Savings, and Deep Space Mission Opportunities4. Optimal Spacecraft Trajectories under Uncertainties6. Knowledge and Technology Building Blocks for Space Access Architectures7. Structural Prototype Design of Deep Space (SP-DDS) Exploration and Cargo Spacecraft8. space brick – modular epp elements for future space transportation and cargo missions9. Nuclear Thermal Propulsion (NTP) Post-Burn Transient: Cool-Down Propellant Consumption and its Effect on Total Delta-v