How do cells repair their damaged DNA—and what happens when that process is hindered and cancer arises? Sarah Moser has taken a closer look during her PhD, uncovering surprising insights that could help improve future cancer treatments.

On 11 June 2025, the MA in International Relations (MAIR) Programme convened its 2nd Humanities & IR Graduate Conference at The Hague Campus (Schouwburgstraat), welcoming over sixty participants from twenty institutions in Europe, North America, and Asia.

An event where students came together to discuss the impact of AI on healthcare. Jurren de Groot and Yuxuan Zhu, master's students in Artificial Intelligence, took up the debate. They participated in SimuVaction, an event that brings students worldwide together in Atlanta to simulate an initiative of…

You may already have seen them in the larger restaurants in the teaching buildings: simple yet tasty hagelslag or cheese sandwiches. Students asked and the University Services Department (UFB) has delivered with its new Pure Basic line. Now there is a lunch for every budget.

The underwater world around present-day Indonesia has changed greatly in recent centuries as a result of human activity. University lecturer Johannes Müller has been awarded an NWO XS grant to map the history of the Indonesian ecosystems.

Collaborating and learning from other fields – that is what bioinformatician Hannah Augustijn enjoys most about doing research. During her PhD at Leiden University, she developed new ways to search within bacteria for the antibiotics of the future.

'Let's make this a twice-yearly tradition!'– a feeling shared by many after the vibrant Research Day. Engagement started early, with participants connecting informally over good coffee before the formal start of the event on 19 November.

Museum De Lakenhal issued an open call for creative solutions to the problem of growth addiction. From over 500 submissions, they selected 15 artworks for the exhibition 'If things grow wrong'. These include the creations of Leiden researchers Peter van der Putten and Evert Jan van Leeuwen.

A year ago, assistant professor Paz Gonzalez received a Comenius grant to start an academic journal for and by students. Now the first double issue of The New Scholar is a reality. ‘We want to show the faculty’s diversity.’

Archaeologist Jason Laffoon was awarded an NWO Vidi grant for an innovative investigation into ancient migrations in the western Caribbean. The innovative character of this research project lies in the wide-scale application of isotope analysis and isotope mapping. ‘We aim at further developing methods…

The fact that corona has created a wave of creativity is evident when walking around in the lab of pharmacologist Coen van Hasselt from the LACDR. Suddenly there were far fewer master's students permitted in the lab for their research. So Van Hasselt came up with smart solutions to enable lab work to…

Sander van Kasteren only noticed some small, subtle changes since he was appointed professor on 1 May. Still, he has to get used to the idea, even though he had been working towards the professorship for a few years. ‘I don't quite see myself as a professor yet.'

Part of our social contact is currently online, with no physical proximity. Does digitalisation mean that we are losing an effective way of making contact with one another? This is what Reinoud Kaldewaij will be studying with a Veni subsidy from the Dutch Research Council (NWO). 'An issue that will…

What makes young people susceptible to misinformation? And how do their friends influence this? Psychologist Jiemiao Chen aims to find out by using eye-tracking to monitor where young people focus their attention while watching TikTok videos.

Data Science & AI student Nataliia Bagan combines a passion for mathematics, language, and artificial intelligence. Her exceptional bachelor’s thesis on improving reasoning in large language models earned her a nomination for the Leiden Science Young Talent Award 2025.

The university is exploring how to improve our educational logistics. Deputy Director of Operations and project leader Joop van Pijkeren answers five questions about the project.

The LUCAS Audience Award 2021 has been awarded to Nadine Akkerman. This is a prize for researchers who appeal to an audience wider than the academic community. The prize consists of 1000 euros, a trophy and eternal fame.

Facility, Organisation

The SENSYN project has found a solution to few public datasets for criminological research: synthetic datasets. Marieke Liem talks about this unique innovation

He officially began as Strategic Adviser for Real Estate on 1 July. But in practice, Ferdy Poppelier, the former Director of Real Estate, will still mainly be the principal of construction projects. ‘It’s great to see that we as the Real Estate expertise centre have achieved so much.’

Two thousand years ago, the Middle East found itself caught between the rise of the Roman Empire in the west and the Parthian Empire in the east. PhD candidate Nolke Tasma has been awarded an NWO grant to investigate how local inhabitants experienced these changes.

As you know, the faculty is working on a new follow-up strategy with six themes. Each theme now has its own writing team. Every week we speak with one of these teams about their work, and share the highlights. On this page you can find the current article and an overview of all articles on the follow-up…

Legal protection in education is something of a neglected child: oddly split between administrative law and civil courts. Brechtje Paijmans is calling attention to this issue as Professor by Special Appointment of Conflict Resolution and Legal Protection in Education.

Facility

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.

Jeroen Touwen officially joined the Campus The Hague Board on 28 November.

On 10 March students of the advanced master's in International Children’s Rights and the Dutch Child Law master's watched the documentary Shadow Game with filmmaker Els van Driel.

ICT, Organisation

BrainTrain: an initiative from Leiden University in which a team of students visit high schools to make adolescents more resilient against disinformation on the news and on their socials. In an interactive two-hour guest lesson, high school pupils discover how easily their brains can be tricked into…

Concrete pillars without a roof, windows without glass, storeys without walls. It’s clearly evident that the South Cluster is being dismantled. Take a look at the photos!

The Leiden Legal Technologies Program is runner up for the Gouden Zandloper (Golden Hourglass) for Legal Education & Research, the prize for the most innovative legal programme.

The PhD Association of the LACDR (PAL) is here to support YOU! Our team of 8 dedicated members represents every division at LACDR, ensuring that all PhDs—whether employed, contract, or external—have a voice.

Education, ICT

Organisation

Nineteen students who obtained excellent results in the minor Intelligence Studies received the annual Kluitersprijs.

Francien Dechesne, Associate Professor at eLaw, contributed as an expert to the advisory report of the organisation AlgorithmAudit, which was presented to the Dutch Minister for Digitalisation Alexandra van Huffelen on Wednesday 29 November 2023. The report contains a number of concrete norms to avoid…

On 17 October, a representative from the ERC Safe & Sound project attended the first edition of WE ROBOT Europe in Berlin. At the conference, speakers and participants from the academic world, policy bodies and industry shared and discussed their thoughts on robotics regulation in the EU and the US.…

Leiden scholars succeeded in making Arabic accessible to Western academic communities as early as the sixteenth century. But how did they approach this problem?

The objective of many European countries is to provide reception facilities for refugees in their own region. Here in the Netherlands a new coalition agreement is in the making and Professor Jorrit Rijpma reflects on his own research to give advice and tips.

Facility

Leiden University has secured fifth place in SustainaBul, the sustainability ranking for universities and universities of applied sciences in the Netherlands.

Facility, Organisation

On 18 March 2021, Clara van Dam gave an online seminar for Lund University about EU Commission guidance in the national legal order. The seminar was hosted by Professor Henrik Wenander.

8 April, we hosted our very first research day—an exciting beginning with more to come in the future. We were able to show how researchers and support staff collaborate to secure research grants, conduct studies in accordance with the latest rules and regulations, and tackle challenges head-on.

Leiden University has made available Kiem (seed) grants of €10,000 - an initiative for developing new interdisciplinary, interfaculty research partnerships and encounters. Helen Pluut is part of a Kiem team, one that brings together researchers from Leiden Law School, LUMC, FSW and ICLON (and Young…

Research

After three years of hard work, the students of the Honours College Law received their certificates on 22 November at an awards ceremony held at Scheltema.

Dr Gianclaudio Malgieri, Associate Professor of Law at eLaw, will receive the AI Policy Leaders Academia Award from CAIDP Europe (Center for AI and Digital Policy Europe) alongside Professor Alessandro Mantelero from the Politecnico di Torino. The award is 'for their collective call on EU policymakers…

Due to an exception in the law, domestic workers employed by private persons cannot automatially benefit from social security schemes. Home help Carol Kollmann did not agree with this and took her case to court.

Ava Bauer’s successor has been announced. From September 2023, Nalani Verwoord will be the new assessor of Leiden Science. Nalani is a third-year Biology student.