In an op-ed for EU Law Live, Joris Larik (Leiden University College The Hague and Europa Institute) stresses that delays to the Mercosur and India agreements risk undermining Europe’s economic competitiveness and global credibility.

Emeritus Professor in Mathematics Prof. Dr. Ir. Bert Peletier received a Royal Honor in the church ‘Hooglandse Kerk’ in Leiden on 26 April 2013. He was a pioneer in the field of mathematics and in particular in the field of non-linear analysis.

How do you rebuild a field of science after years of war? In June, a remarkable gathering of Ukrainian and Dutch astronomers took place at Leiden’s Old Observatory, aimed at jointly developing a recovery plan for Ukrainian astronomy.

In the United States and around the world, the death of George Floyd has sparked fierce daily demonstrations against police violence and racism. What is the significance for our faculty?

Collaborating in drug discovery and health research was the goal of a visit to the Leiden Bio Science Park on 14 May by a Swedish delegation including His Majesty King Carl XVI Gustav of Sweden. The delegation visited Leiden University’s Faculty of Science.

Some 5000 years ago the people of the corded ware culture exchanged ideas about death on a continental scale. There were strong gender differences in these ideas: men were buried in an international style, and women in a local style. This discovery was made by archaeologist Quentin Bourgeois.

Kim Jong Il, leader of North Korea, is dead. His youngest son Kim Jong Eun is expected to be his successor. Remco Breuker, Leiden Professor of Korea Studies, gives a profile of the new leader.

‘It truly is a plan by and for us all,’ said Annetje Ottow, President of the Executive Board, at the Dies Natalis celebration on 8 February. Leiden Law School was also actively involved developing in the strategic plan.

‘Ordinary citizens’ are featuring more prominently in foreign policies which has already resulted in some unexpected outcomes such as Brexit. Jan Melissen, Senior Fellow at the Institute of Security and Global Affairs (ISGA) conducts research into the societisation of diplomacy. He is interested in…

Population growth, economic expansion and the associated land use caused an increase in the number of bird species facing extinction and a reduction in carbon storage worldwide. These are the findings of an international team of scientists, also from the Leiden University Institute of Environmental…

The Grotius Centre for International Legal Studies is proud to host the following moot court competitions in 2019:

Professor Jan Melissen (ISGA) is the recipient of the 2022 ISA Distinguished Scholar Award in Diplomacy Studies. It is the first time this prize has been awarded to someone in Europe. Melissen: ‘I am very honoured and humbled to be the first person to receive this award outside North America.’

A suitcase covered with stickers from various universities, containing a quantum light source. Since April 2024, this suitcase has been visiting scientists in Europe researching single photons: the smallest possible quantity of light. The suitcase, also called ‘Q-torch’, travels from lab to lab like…

On Thursday, 11 May 2017, Nobuo Hayashi will defend his PhD dissertation entitled “Military Necessity” at Leiden University’s Academy Building (Rapenburg 73). He will argue that military necessity denotes normative indifference in international law.

Seven prominent North Korean exiles will shed new light on the dictatorial state in a conference hosted by Leiden University on 17 and 18 September. All of the speakers once held high-ranking positions in the regime and now reveal its inner workings.

Climate interventions do not lead to more climate action among Dutch, but they do raise awareness about climate change.

Jan Melissen, associate professor at ISGA and editor-in-chief of The Hague Journal of Diplomacy, and his team have been awarded 10,000 euros from the 'Valued' fund. This pilot fund, implemented by the KNAW (Royal Netherlands Academy of Arts and Sciences) aims to increase the interaction between science…

Professor Frits Kalshoven passed away on 6 September 2017 at the age of 93. Kalshoven was internationally renowned as an expert in the field of international humanitarian law (IHL). From 1970 onwards he was a professor at our law school, where he had also been a student himself and where he was awarded…

Leiden Law School and the Center for Constitutional Studies of the Mexican Supreme Court (CEC-SCJN) have signed a memorandum of understanding, to carry out joint activities in the field of constitutional law and children's rights.

Technological innovations such as home dialysis could significantly improve the quality of life and health of kidney patients. Professor Joris Rotmans therefore wants to continue pushing for new medical technology, as he will explain in his inaugural lecture on 24 March.

The state should prepare 'lifers' better for returning to society, for example by giving them some control over their own lives. This is the finding of Marieke Liem in her book 'After Life Imprisonment', published on 19 August.

The authors detail the transnationality of terrorist organisations, including fundraising, communications, alliance-forming, movement and target selection.

What can we learn from the diverse institutional logics of smart government in East Asia to inform cross-institutional AI governance?

As of 19 April 2022, professor Jacobijn Gussekloo has been appointed Dean of the Honours Academy at Leiden University. Gussekloo is professor of Primary Care and director of the master’s programme Vitality and Ageing. Gussekloo succeeds professor Jos Schaeken, who has been Dean since March 2020.

On 7 November, the Europe Hub welcomed Pierre Bachelier, Director of Student Affairs at the College of Europe, to Leiden University. Mr Bachelier presented the College of Europe's postgraduate programmes that Leiden University students can take once they have completed their master's degrees.

Security, power, transition, fracture... and fear. What do these concepts mean in the context of the ongoing situation in Europe?

Asteroids, pieces of matter orbiting round the sun, have turned out to be extremely valuable. Asteroid Psyche contains a quantity of metals that together are worth more than the entire global economy. NASA is heading for it.

Dr Tanja Masson-Zwaan, assistant professor at the International Institute of Air and Space Law, recently visited four universities and a research institute in China. During her visit to Wuhan University, Masson-Zwaan was appointed as an adjunct professor. She was handed a certificate by Professor Xiao…

On 6 November 2025, the Europe Hub welcomed Mr. Pierre Bachelier, Director of Student Affairs at the College of Europe, for a visit at Leiden University. Mr. Bachelier presented the College of Europe's postgraduates programs, which Leiden students can join after graduating from their masters.

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 10 February 2025, Vincent Delhomme attended the official launch of the new EU Health Union Fellowship at the College of Europe (Bruges), where he delivered a two hour lecture on EU health governance.

The first fine for space debris has been issued. An American company that had failed to clean up its space junk has been fined $150.000.

Assistant Professor Space Law Tanja Masson-Zwaan appeared as a guest on the Radio Weetlust programme of local Leiden radio station Sleutelstad FM. She talked about, among other things, who does the moon actually belong to and why we all would like to go there so badly.

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 26 October 2023, Vincent Delhomme spoke at the inaugural conference of the newly founded ICON-S Benelux Chapter, hosted by Maastricht University. The overarching theme of the conference was 'Crises, Challenges, and the Future of Public Law'. Vincent participated in the panel on ‘The challenges of…

On 19 October 2023, Vincent Delhomme spoke at the conference on ‘European Judicial Narratives’, hosted by the University of Louvain Saint-Louis in Brussels. Vincent participated in the panel devoted to the reception of these judicial narratives in the European legal epistemic community.

Joanne van der Leun has been reappointed by the Executive Board of Leiden University as Dean of Leiden Law School. Van der Leun will begin her second term (2019-2022) on 1 September 2019.

Researchers of the department of Child Law have submitted an advice to the Committee on the Rights of the Child of the United Nations, which monitors the implementation of the UN Convention on the Rights of the Child, on 7 January 2019.

Which teacher has the talent to really motivate their students or is able to combine current research in their lectures? These are important qualifications for winning the yearly university wide Teaching Prize. Dr. Karène Sanchez, lecturer French language and culture, is one of the nominees.

The procedures for admitting minor asylum seekers from Camp Moria on Lesbos to the Netherlands are in breach of children’s rights according to Ton Liefaard, Professor of Children’s Rights and Peter Rodrigues, Professor of Immigration Law.

Working from your Leiden room with students from the United States: Univeristy Lecturer Dario Fazzi’ students will soon be able to take up this challenge. He receives a grant from the Faculty of Humanities and ECOLe to set up a ‘virtual exchange programme.

The United Arab Emirates has announced that it is to open a so-called ‘Space Court’ which will operate as an arbitral tribunal for space-related disputes.

As of 1 February prof. Mariëlle Bruning, dr. Stephanie Rap and Denise Verkroost LL.M. will start the second part of the research project concerning the participation of children in youth care.

It has been a coming and going of satellites and spaceships near the moon. It has not been this busy in years. There are currently more than ten moon missions in progress and another five are being scheduled for next year.

After over 50 years, the US is heading back to the Moon. Space expert Tanja Masson-Zwaan says in ‘EenVandaag’ that the test mission is an important step in the advancement of space exploration.

In many Central and Eastern European countries, a period of greater openness emerged in the late 1980s. How did this affect the future perspective of residents? And can we learn anything from this period for our current times? University lecturer Dorine Schellens delves into the literature to investigate…

Leiden University's humanities have one of the top places in the Times Higher Education Rankings. This year, we were placed 26th.

This paper presents the prevalence and characteristics of firearm homicides in Denmark, Finland, the Netherlands, Sweden and Switzerland

LUCIR (Leiden University’s Centre for International Relations), in cooperation with ISGA (Institute of Security and Global Affairs) and GTGC (Global Transformations and Global Challenges Initiative), will host a conference on 2 and 3 December 2021 about the lessons that may be learned from Afghanistan.…

Every six years, the research conducted at all law schools in the Netherlands is evaluated during a research evaluation. On 6 and 7 October, it was Leiden University’s turn to be evaluated. The aim of this ‘site visit’ is to allow the committee to get an idea of the faculty research climate, the research…