This event is co-organised annually with the International Institute of Space Law (IISL) and takes place during the Legal Subcommittee of the United Nations Committee on the Peaceful Use of Outer Space (UNCOPUOS) in Vienna, Austria. The IISL and ECSL are both observers at the Legal Subcommittee.
This Symposium brings together academic experts and leading practitioners in the field of space law, policy and regulation to discuss pressing issues and to propose solutions to the international community.
The 2026 symposium was held on the 14th of April 2026, at the Vienna International Centre. A panel of prestigious speakers discussed the following subject: "Legal approaches for a safe space environment".
You can find all relevant information on the 2026 edition and previous editions in the corresponding reports.
Objective of the Symposium and ECSL Student Observers
Within the evolving space sector, COPUOS plays a central role in advancing dialogue, expertise, and cooperation. Through informed dialogue and interdisciplinary perspectives, the IISL/ECSL Symposium aims to support COPUOS Member States in advancing shared understanding and reinforcing the legal foundations for the peaceful and sustainable use of outer space for the benefit of all countries. Each year, a different theme is explored and analysed by international experts to support delegations in the discussions that take place during the Legal Subcommittee of COPUOS.
Students from all over Europe have each year the opportunity to attend the Symposium with the ECSL and experience the discussions held at the Legal Subcommittee as observers!
Applications for the 2026 edition are closed and information regarding the 2027 edition will be communicated closer to the event.
More information about the work of the Legal Subcommittee and previous IISL/ECSL Symposia is available here: www.unoosa.org and below.
Previous IISL/ECSL Symposia
2020 Symposium - (Cancelled amid covid-19)
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
2011 Symposium - A Fresh Look on the Delimitation of Airspace and Outer Space
28th March 2011
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
Presentations of the Symposium
Media modal
Report on the 2025 IISL/ECSL Symposium
Report on the 2022 IISL/ECSL Symposium
Report on the 2021 IISL/ECSL Symposia
stay updated
Subscribe to our newsletter to receive the latest news, mission updates, and exclusive insights directly in your inbox. Be the first to know about our upcoming projects and breakthroughs.