Recently, Jaap van den Herik, professor emeritus Law and IT, was interviewed by the BNVKI (Benelux Association for Artificial Intelligence).

In a time of growing polarisation and declining trust, the rule of law is under pressure. The system as we know it today only took shape 177 years ago, with the constitutional reform of 1848. Carla Hoetink emphasises: ‘The democratic rule of law was originally designed to prevent violence and revolu…

PhD defence

PhD defence

Het asielbeleid blijft een hoofdpijndossier voor het kabinet. Een akkoord zou bereikt zijn waarin iedere partij een kleine concessie zou doen. De VVD gaat uiteindelijk toch niet akkoord met deze nieuwe asielwet die gemeentes kan dwingen om asielzoekers op te vangen. De VVD fractie heeft moeite met ‘dwang’…

The US-Israeli strikes on Iran have been welcomed by critics of the regime but have also prompted intense concern. They’ve triggered a dangerous domino effect across the region and beyond. Leiden experts share their insights on the potential consequences.

The latest innovation in the field of urban mobility could soon be buzzing over our heads. For some, it’s a science fiction dream come true. For others, however, it’s an unwelcome intrusion. ‘It has the potential to be a major development.’

Writing a book on the recent history of Leiden University in corona times. For educational and policy historian Pieter Slaman (34), this has meant working in the attic of his parents’ house while they looked after his daughter, along with numerous online conversations and very few, if any, visits to…

Towards the end of February, three Leiden University buildings will be assessed for their accessibility to people with a disability. The assessment will be carried out by Ongehinderd, a social enterprise committed to making the Netherlands more accessible. Its founder and director, Gerard de Nooij,…

Imagine: you’re seeking asylum in the Netherlands due to your sexual orientation or gender identity. The immigration authorities might question you about your sexuality. PhD candidate Elias Tissandier-Nasom, who is researching asylum applications submitted by LGBTQI+ children, explains that the process…

Doctoral Grant for lecturer to research witness protection at the international courts.

Leiden University is part of a Dutch consortium that will receive 4.7 million euros from NWO to build a facility that makes controlled, thin layers of material. The facility can produce small and large films, something that is globally unique. And that is key to scaling up, for example, new catalysts…

She develops algorithms that outperform leading optimization techniques and can be applied in many fields. For this work, Niki van Stein and her team have won the GECCO Humies Award. ‘With our method, we can create and refine algorithms for a wide range of applications—algorithms that are better than…

Seven hundred and three independent student flats will be built in the entrance area of the Leiden Bio Science Park (LBSP), close to the University Sports Centre. Construction will begin this year and the accommodation is expected to be completed by the start of academic year 2023-2024.

Eiko Fried (Clinical Psychology) was inspired by the idea of ​​mental disorders as complex properties with "fuzzy boundaries", rather than the categorisation of psychiatric conditions. For his research he has been awarded the Janet Taylor Spence Award from the Association for Psychological Science (APS).…

On Tuesday evening 22 August, our very dear colleague Jo Hermans passed away. Jo had been ill for some time, but continued to enjoy life in good spirits until the very end. He meant a great deal to Leiden University and will be remembered with fond memories by many.

At the start of the year a lot of journals publish lists of their most cited papers of the previous year. Three papers published by Leiden archaeologists were ranked in the top 10 of the Journal of Archaeological Science: reports.

On Wednesday 18 May, the students of the LL.M. Advanced Studies in International Children’s Rights presented their work to the UN Committee on the Rights of the Child with the aim to provide recommendations on how to make its decision more accessible to children.

What role did inequality play in the past? On Friday 5 December, Master's students in history presented their answers at a conference they organised themselves.

A KIEM grant was recently awarded to a diverse group of Leiden researchers, aiming to organise an interdisciplinary conference with the title ‘Ancient Religions and the Materiality of Danger’ in 2026. The topic of the conference marks a shift towards the study of the role of objects.

Since 1 November 2025, Prof. Dr. Luc Sels has been the new president of Leiden University's Executive Board. In a message to our university he introduces himself and shares his first impressions.

LUC The Hague is recognised as a national Top Programme, reflecting a vibrant learning community where curiosity, academic excellence and global engagement come together.

Salvador Santino Regilme has been selected for a fellowship at the Netherlands Institute for Advanced Study (NIAS) in Amsterdam. From September 2022, he will spend 5 months at NIAS working on his research project titled 'The Normative Order of the Global War on Drugs'.

Mike Schmidli has been awarded a fellowship at the Netherlands Institute for Advanced Study (NIAS). From September 2021, he will spend 5 months at NIAS working on his research project titled 'Human Rights, Democracy Promotion, and U.S. Interventionism in the late Cold War'. Read the abstract of his…

Ten Leiden University’ teachers obtained their Senior Teaching Qualification (SKO) last week. Ingrid Samset, Assistant Professor at LUC, talked about her SKO track.

Emeritus professor Willem Otterspeer received a royal honour from mayor Henri Lenferink on Tuesday 20 September. The university historian was appointed Knight of the Order of Orange-Nassau.

Dr. Joris Larik, Assistant Professor at LUC The Hague, has been selected for a fellowship at the Netherlands Institute for Advanced Study (NIAS) in Amsterdam. During his fellowship, Larik will conduct research on a fundamental question: Was Brexit worth it when it comes to striking trade deals around…

Tahir Abbas, Professor of Radicalisation Studies at the Institute of Security and Global Affairs, organised a book launch for his new book: 'Ruminations: Framing a sense of self and coming to terms with the other'. The book launch took place on Thursday 15 December at Campus The Hague.

In consultation with the Executive Board of the Faculty of Social and Behavioural Sciences and having heard the views of the Faculty Council, the Executive Board has appointed Bart Barendregt as Dean of the Faculty until 1 April 2027.

How do we account for historical power dynamics when writing new histories of slavery and emancipation? What critical methods can we employ when studying preserved archives and collections? A new book series aims to address these questions. The initiators Karwan Fatah-Black and Ilse Josepha Lazaroms…

A delegation from Leiden University visited various universities in Japan at the end of March. The strong ties between the Netherlands and Japan are still based on a long tradition of knowledge exchange.

In a landmark ruling, the International Court of Justice says that states are obliged to protect the climate. Jolein Holtz, a climate and human rights expert, believes the Court is too vague about the impact for future generations: ‘A missed opportunity’.

Lecture, Global Histories of Knowledge Seminar

Legal protection. What do those involved in youth care and child protection understand by this concept? And what needs to change to improve legal protection? This question was explored by researchers from Leiden University’s Department of Child Law. Their research fits with the government’s ambition…

Middle East Studies Lecture

How can we guarantee the safety of the crown witness scheme for both crown witnesses and lawyers? How can we ensure that online conversations between lawyers and their clients remain confidential? And what are the risks of extra secure communication tools?

IAt the Criminal Justice Public Lecture on 20 April, Professor of Law and Society Maartje van der Woude spoke about her research into decisions and practice in relation to intra-Schengen border areas and the free movement of persons. The thinking behind the Schengen area is that where the external borders…

Universiteit Leiden en Unicef werken al 10 jaar samen om kennis over kinderrechten uit te breiden en te verspreiden. Ze verlengen deze samenwerking.

Naar aanleiding van de aanhoudende oorlog tussen Rusland en Oekraïne willen verschillende Europese landen een inreisverbod invoeren tegen Russische staatsburgers. Maar mogen zij dit zomaar doen?

At least 27 migrants died on 24 November after their boat capsized in the Channel between France and England.

PhD defence

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.

Human cells are protecting their proteins from unfolding and aggregating. That's what biophysicist Alireza Mashaghi and his team discovered after seven years of in-depth research into the folding mechanisms of proteins. With an unprecedented approach, the team was able to study the folding of a single…

Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

Following in the footsteps of Professor Jan Zaanen, visiting fellow Louk Rademaker is exploring quantum effects in so-called strange materials. His research is paving the way for new materials that could be used in emerging technologies.

Assistant professor Joost Willemse firmly believes that as a teacher, you’re never done learning. ‘Students ask questions about things you’ve never thought of yourself. Ultimately, that makes you better at your job.’ That’s why he always encourages his students to ask questions. And it’s appreciated:…

Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cells membranes. This allows for selectivity and also reversibility: the binding can also be undone. Researchers first caught this phenomenon using spheres or colloids, and published…

Five Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to two million euros will enable them to continue and expand their scientific research.