rootbrowseIAC-20symposium D3D3. 18th IAA SYMPOSIUM ON BUILDING BLOCKS FOR FUTURE SPACE EXPLORATION AND DEVELOPMENTSessions1. Strategies & Architectures as the Framework for Future Building Blocks in Space Exploration and Development2A. Systems and Infrastructures to Implement Sustainable Space Development and Settlement - Systems2B. Systems and Infrastructures to Implement Sustainable Space Development and Settlement - Technologies3. Space Technology and System Management Practices and Tools