Book excerpt: This book presents selected topics on nanotechnological applications in the strategic sector of space. It showcases some current activities and multidisciplinary approaches that have given an unprecedented control of matter at the nanoscale and will enable it to withstand the unique space environment. It focuses on the outstanding topic of dual-use nanotechnologies, illustrating the mutual benefits of key enabling materials that can be used successfully both on earth and in space. It highlights the importance of space as a strategic sector in the global economy, with ever-increasing related businesses worldwide. In this light, it dedicates a chapter to the analysis of current and future markets for space-related nanotechnological products and applications.