rootbrowseIAC-15symposium D4D4. 13th IAA SYMPOSIUM ON VISIONS AND STRATEGIES FOR THE FUTURESessions1. Innovative Concepts and Technologies2. Contribution of Space Activities to Solving Global Societal Issues3. Space Elevator Tether and Space Mineral Resources4. Strategies for Rapid Implementation of Interstellar Missions: Precursors and BeyondIP. Interactive Presentations