Speculation about alien life, a new nitrogen map, AI as a thesis supervisor, groundbreaking telescopes and multi-million-euro investments to combat antimicrobial resistance – the diversity of these topics shows that our readers are just as broadly interested as our researchers. Discover the most-read…

Every year, the Netherlands Red Cross and Belgian Red Cross-Flanders organise the Frits Kalshoven International Humanitarian Law Moot Court Competition. Eight teams from Belgium and the Netherlands participated in the 17th edition of the competition, from 5-7 March 2025 in The Hague. The team from Leiden…

Our solar system probably evolved in the same way as most of the other planetary systems around us. This has been shown by German-Austrian-Dutch research on more than 870 planet-forming disks in the Orion cloud A. The five researchers, including three from the Leiden Observatory, published their findings…

Forum editors: Seda Gürkan, Institute of Security and Global Affairs (ISGA), Faculty of Governance and Global Affairs (FGGA), Leiden University, s.gurkan@fgga.leidenuniv.nl and Özlem Terzi, Vrije Universiteit Amsterdam, o.terzi@vu.nl

The European Rule of Law Conference 2025, hosted by re:constitution at the Berlin Social Science Center (15-16 September), brought together scholars, practitioners, and civil society to critically examine the challenges facing democracy and the rule of law in Europe and to explore ways of shaping their…

During the annual graduation ceremony, not only were the Bachelor's students in Political Science honoured, but also those students who had written exceptional theses. The thesis prizes reward work that excels in originality, social relevance and academic quality. This year's winners are Ronny Wijling…

Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

‘Let us not forget the power of genuine engagement,’ dean Sarah de Rijcke stressed at the New Year's Reception on 7 January 2025, which was also attended by Rector Magnificus Hester Bijl and addressed the Faculty of Social Sciences.

Each year, Leiden University’s Europe Hub invites submissions from all faculties for its annual Europe Hub Master's thesis prize. The winning thesis should touch on at least one of the Hub's thematic priorities and offer an interdisciplinary perspective. The winner receives a certificate as well as…

The symposium will be held on 11 June 2025 from 10.00-17.00 and is organized as a starting point for the publication of an edited volume – a selection of symposium attendants will be invited to submit book chapters.

Staff from eLaw – Center for Law and Digital Technologies contributed to the ACM Conference on Fairness, Accountability, and Transparency (FAccT), held in Athens from 25 to 27 June 2025. The ACM FAccT conference is one of the world’s leading venues for interdisciplinary research on responsible and ethical…

Dr Olga Ceran has been selected as a 2025/26 Mellon/SAR Academic Freedom Fellow. As one of 11 fellows in this year’s cohort, she will work on a project titled ‘The Linguistic Dimension of Academic Freedom: A Human Rights Analysis of Higher
Education in Europe’.

Over the recent period there have been a number of protests and demonstrations at universities by people who oppose the universities’ collaboration with the fossil fuel industry. Students and staff in Leiden are also expressing their concerns about this issue. We are now publishing a list giving an…

The LOFAR e-infrastructure group is responsible for deploying and maintaining LOFAR processing on distributed e-infrastructure. A co-operation between SURFsara, Leiden University and ASTRON, the group develops software to integrate the LOFAR stack with processing pipelines. Our software can schedule…

The lecture series “Humanity in the Automated State” continued on 19 March 2026 at Leiden Law School with Dr. Mengchen Dong from the Center for Humans and Machines at the Max Planck Institute for Human Development.

Lecture, Booklaunch - CoGloSS | Oosters Genootschap | Leiden University Press

Ankie Broekers-Knol, President of the Dutch Senate and Leiden alumna, opened the new Alumni House at Rapenburg 68 on 5 September. The Alumni House, next door to the Old University Library, where the University's Administration and General Services are located, is the new home of the Leiden University…

Pupils and students learn best if they are actively doing something with the material. Professor Wilfried Admiraal is studying the best teaching methods and assignments to achieve this.

Recente publicaties in de Leidse handboekenreeks zullen hieronder verschijnen.

Alumni event, New York

A team of Leiden astronomers has managed to calculate the first 100 million years of the history of the Oort cloud in its entirety. Until now, only parts of the history had been studied separately. The cloud, with roughly 100 billion comet-like objects, forms an enormous shell at the edge of our solar…

Aan de hand van bekende en minder bekende voorbeelden uit de wereld van politiek en media laat dit boek zien hoe je strategisch gebruik én misbruik kunt maken van taal.

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Schatten uit het oude Armenië

The Phantom of the Ego is the first comparative study that shows how the modernist account of the unconscious anticipates contemporary discoveries about the importance of mimesis in the formation of subjectivity.

This book focuses on the element of thresholds – makeshift gates, makeshift structures and house doors – as concepts of liminality in ancient Near Eastern magical rituals, and the idea of transformation they reflect.

AI Labs are collaborations of Leiden University with external parties such as industry, governmental parties and other universities on the topic of Artificial Intelligence. The Science institutes of Leiden University are unique located in the largest Bioscience Park of the Netherlands, next door to…

Dit rapport maakt deel uit van het project Receptenboek burgerparticipatie in opdracht van de Rijksdienst voor het Cultureel Erfgoed (RCE) en met steun van het Fonds voor Cultuurparticipatie.

The starting hypothesis of the project is that secrecy is not always inimical to democratic governance as conventional wisdom has it.

Vandaag de dag liggen statistische methodes aan de grondslag van beslissingen in allerlei facetten van het leven, van de gezondheidszorg en agricultuur tot de financiële sector en marketing.

In 1940 the Germany occupiers ordered the dismissal of all Jewish staff of the university. This resulted in protest speeches by fellow academics.

On 12 April 2022 Alok Oak successfully defended a doctoral thesis and graduated.

This film will be screened on Sunday, 5 April 2026 at 7:00 pm.

, Sandifortdreef 21, 2333 ZB, Leiden

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Simona Demková from the Europa Institute participated as a key speaker at the annual Digital Constitutionalism Academy on 27 and 28 March 2025. The Academy brought together leading scholars and practitioners to explore the evolving intersection of digital innovation, fundamental rights, and regulatory…

Without academic freedom, we might not have antibiotics, nor a deep understanding of human behaviour. Literary criticism, climate models, and ecological restoration would be severely limited; just like ethical reflection on artificial intelligence, justice, trauma, parenting, faith and hope. All these…

Moot Court

Conference

Lecture

Every year, more than three thousand businesses are declared insolvent in the Netherlands. The purpose of bankruptcy is to divide the assets of these companies among the creditors. However, the value of the claims of the creditors often exceed the value of the assets of the company