Professor of Space Law and Emeritus of International Law, Sapienza University of Rome. Vice-President of the Italian Society for International Organization (SIOI). Chairman of European Centre for Space Law at the European Space Agency. General Counsel of the International Astronautical Federation (IAF). Senior Legal Advisor of Italian Space Agency (ASI) and Member of its Board of Directors (2014-2018). Legal Expert at Italian Ministry of Foreign Affairs. Italian Delegate to UNCOPUOS since 1997. Chairman of the Legal Subcommittee (2004-2006) and Co-chair of the Expert Group D (Regulatory Regimes and Guidance for Actors in the Space Arena) of the Working Group on Long-Term Sustainability of the Outer Space Activities (2010-2018). Since 2007, Italian Delegate to the Council of the EU for the Negotiation of the International Code of Conduct on Outer Space Activities (ICoC). Chair of the multilateral negotiations on ICoC held at the United Nations (New York, 2015). Chair of the Committee of Governmental Experts for the preparation of a Protocol to the Cape Town Convention on Matters specific to Space Assets (2003-2012). Chair of the Committee of the Whole of the 2012 Berlin Diplomatic Conference, which adopted the Protocol. Since 2010, UNIDROIT correspondent for Italy. Member of two UN Group of Governmental Experts on Outer Space Transparency and Confidence-Building Measures (TCBMs, 2011-2013), and on Practical Measures for the Prevention of an Arms Race in Outer Space (PAROS, 2018-2019). Member of the Specialized Panel of Permanent Court of Arbitration pursuant to Optional Rules on Disputes relating to Outer Space Activities. In 2011, Social Sciences Award from the International Academy of Astronautics (IAA) and, in 2015, Distinguished Service Award from the International Institute of Space Law (IISL). Author of over 250 scientific publications, including the volume “The Law of Outer Space Activities” (2022).