Our Advanced Master Air and Space Law (LL.M.) combines public air law, private air law and space law from a European and an international perspective.

The International Institute of Air and Space Law is one of the leading international academic research and teaching institutes in the world, specialising in legal and policy issues regarding aviation and space activities in the broadest sense of the word.

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This research studies the future perspectives for Malaysian space law. It aims at demonstrating the development of Malaysian outer space activities inclusive of her status with respect to United Nations space conventions and her membership of international and regional space-related organizations.

The International Institute of Air and Space Law (IIASL) offers PhD candidates the possibility to enroll in the IIASL PhD Track. It is designed for 'external' PhD candidates (buitenpromovendi), who seek to pursue a PhD in Air Law or Space Law while honouring their professional commitments in paralle…

For years now, collaboration has been the operative word when it comes to successful space missions. But this can only be achieved with good agreements.

At the International Astronautical Congress in Washington DC last week, IIASL alumna Thea Dethlefsen (Denmark/Norway) won the I.H.Ph. Diederiks-Verschoor Award, given each year by the International Institute of Space Law (IISL) for the best paper by a young author.

The section Air & Space Law of the institute of Public Law of the Leiden Law School is looking for a

Check out our new video for the Adv. LLM in Air and Space Law

The Univerisity of Sharjah organises a conference on February 22-23, 2017 ; Call for papers has started.

From 26 August until 5 September 2019, a group of 20 Chinese government officials, industry representatives and academics attended an intensive course on space law and policy at the International Institute of Air and Space Law, organized in cooperation with Avans+ in Breda.

Leiden team runner-up in the European Regional Round at the Manfred Lachs Space Law Moot Court 2016!

The Leiden University team representing the International Institute of Air and Space Law (IIASL) won the World Finals of the Manfred Lachs Space Law Moot Court Competition that took place in Paris on 20 September 2022.

The International Astronautical Congress (IAC) that took place last week in Paris was extremely successful for IIASL.

Recent graduates of the Adv. LL.M. in Air and Space Law presented their paper titled

On 18 June 2019, Neta Palkovitz Menashy defended her thesis 'Regulating a Revolution: Small Satellites and the Law of Outer Space'. The doctoral research was supervised by Prof. dr. P.M.J. Mendes de Leon and Prof. dr. G. Molier.

On 15 May the Space Law Moot Court Competition was held in the council chamber of Leiden Town Hall, organised by the International Institute of Air and Space Law (IIASL).

The Leiden student team representing the International Institute of Air and Space Law (IIASL) won the Best Memorials Award and the second place in the European Finals of the Manfred Lachs Space Law Moot Court Competition.

Anmol Dhawan (24) graduated cum laude from the Advanced LLM in Air and Space Law in Leiden on 28 August 2023. He comes from Mumbai in India and did his bachelor law studies at National Law University Delhi. He has been in the Netherlands since September 2022, so over one year now.

During the second episode of this Leiden Law podcast, hosts Juli Wentholt and Ishana Badhai will talk with Tanja Masson-Zwaan about the latest developments in Space Law.

Steven Truxal joins Leiden University as Professor of Air and Space Law on 1 December 2020. Truxal holds a BA in International Affairs with concentrations in international law and economics from The George Washington University, Washington, DC (USA), an LLM in International Commercial Law with focus…

One of ECSL’s most successful activities is the ECSL Summer Course on Space Law and Policy, which is open to students of all levels of study, as well as a few young professionals already working in the space or space-related sectors. The course is now in its 31st year and boasts a large family of alumni…

On Thursday 24 May 2018, Tanja Masson-Zwaan of Leiden University’s International Institute of Air and Space Law and Prof Mahulena Hofmann of the University of Luxembourg had the honour of addressing the King and Queen of the Netherlands and the Grand-Duc and Grand-Duchess of Luxembourg during the State…

Students on the Adv. LL.M. Air and Space Law reacted quickly to the news of Ukrainians fleeing the war in Ukraine to neighbouring countries. Filip Draba, who is from Poland, collected donations from the class and, together with additional contributions from family and friends in Poland, he amassed €…

During a working visit to a company that cleans up space debris, the British Prince Charles suggested that a climate agreement specifically for space might be a good idea. Experts, including Leiden Law School’s Tanja Masson-Zwaan, say the idea is wishful thinking.

On 12 November 2019, the members of The Hague International Space Resources Governance Working Group adopted the Building Blocks for the Development of an International Framework on Space Resource Activities, during the last meeting of the Working Group that took place in Luxembourg from 11 to 12 November…

Satellites belonging to American space company SpaceX recently came very close to a Chinese space station. Experts are calling for traffic management rules in space.

Space travel has long since progressed from being just about rockets, travelling to the moon, and Russia and America. The Netherlands has its own Space Agency and one of its important tasks is collecting and making available increasingly advanced satellite data.

Tanja Masson-Zwaan and Dimitra Stefoudi of the International Institute of Air and Space Law (IIASL) in Leiden, along with two others, co-edited the book ‘Building Blocks for the Development of an International Framework for the Governance of Space Resource Activities. A Commentary’.

Various countries are planning new missions to the Moon. Not just for prestige and science, but also to extract raw materials.

Space is of enormous strategic value. Having rules in space therefore is to everyone’s advantage.

Russia recently blew up a defect satellite. As a result, the amount of space debris in Earth orbit has increased.

The European Commission has selected a consortium of major European launcher and satellite manufacturers, operators and service providers, as well as policy and legal research centres and institutes to study and provide guidelines and recommendations on Space Traffic Management (STM). The IIASL of Leiden…

We are launching more and more satellites and space is filling up as a result. Currently around 100 million pieces of space debris are floating around Earth. So who’s going to clear it up?

On 28 June, a group of 35 students (13 from Leiden) visited the law faculty as part of the Space Summer School, a 5-day course organised by the LDE Centre 'Space for Science and Society' and NL Space Campus.

Presentations and report!

On 17 November 2014, the Leiden Law School and the University of Beihang, China signed a Memorandum of Understanding.

For the first time in the Netherlands this summer: the Space Studies Programme - an international summer university for those who aspire to a space career. In parallel: the Sizzling Summer of Space, which is a public programme for both young and old.

The European Space Agency (ESA) introduces the members of the European Center for Space Law (ECSL) on its website through interviews with its members. One of those members is Tanja Masson-Zwaan.

The institute that focuses on Public Law is as broad as the field itself. The Institute of Public Law has six departments, each with its own research agenda.

On Friday 12 November 2021, the Net Zero Space initiative was launched at the Paris Peace Forum. The International Institute of Air and Space Law (IIASL) of Leiden University is one of the first supporters to the initiative.

This thesis mainly extends the theory of positive operators on Riesz spaces to a setting of pre-Riesz spaces.

Tanja heeft zich sedert 1985 met haar bijzondere en veelzijdige talenten ingezet voor het opbouwen van het internationaal Instituut voor Lucht- en Ruimterecht, waarvan zij vanaf de oprichting codirecteur is.

The moon exerts a pull on us. The Americans won the space race and were first to land there. In the Universiteit van Nederland, space law expert Tanja Masson explores the questions that this raises. Who owns the moon and the valuable resources that are found there?