Irmgard Marboe is professor of international law at the University of Vienna and head of the ECSL National Point of Contact for Space Law. She is a regular member of the Austrian delegation to UNCOPUOS and chaired the Working Group on National Space Legislation.Stephan Hobe is holder of the Jean-Monnet Chair for Public International Law, European Law and International Economic Law, and the Director of the Institute of Air Law, Space Law and Cyber Law at the University of Cologne, Germany. He chaired the ILA Space Law Committee for many years.