‘What I find most alluring about soil life is that you can steer it,’ researcher Martijn Bezemer of the Institute Biology Leiden (IBL) reveals. ‘You can ask: What do you want? And then I can transform the soil into something you need. At least, that is what we thought.’

As an employee, the Faculty of Law at Leiden University also allows you to go on an exchange. Read here how Esther Kentin experienced this and where to find more information.

Alumni and researchers met at two well-attended alumni dinners in Yogyakarta and Jakarta. The alumni reminisced about their time in Leiden and got to see their lecturers once again.

Museum Boerhaave commemorated the hundredth anniversary of Einstein’s Theory of General Relativity with the exhibition ‘Einstein & Friends’. The exhibition shined light on the famous physicist’s Dutch friends and his love for Leiden. A review featuring seven images can be found below.

Jorik ter Veer studied Political Science in Leiden. How does he look back on his student days?

Willem van der Muur worked at the Van Vollenhoven Institute as a PhD candidate from 2013 to 2019. After completing his doctorate he left for Indonesia to work for the World Bank. There, he is leading a project to register land rights.

A new year, a new project, a new name: The Hague Program on International Cyber Security. Professor Global Security and Technology Dennis Broeders was awarded a grant of 2 million Euros by the Dutch Ministry of Foreign Affairs

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Whispp, a Leiden-based speech technology start-up, is developing an app to help people who stutter express themselves more freely. Among those working together with Joris Castermans and his team at Whispp, are researchers and students from the Leiden University Centre for Linguistics (LUCL).

On April 14, 2025, Dr. Hans Petschar, the recently-retired Director of the Bildarchiv und Grafiksammlung at the Austrian National Library in Vienna, delivered the Sixth Annual Austrian Studies Lecture 'Austria’s Present Past: A visual journey through Austrian history 1925 – 2025'.

Wouter Veenendaal, a political scientist at Leiden University, is an analyst for the Freedom House report. Freedom House is an American non-profit organisation dedicated to democracy, political freedom and human rights. In short, the report describes the degree of freedom and the state of democracy…

When an international cartel is exposed, the parties involved often face punishment by more than one authority for the same behaviour. There is very little international coordination in the actions of these authorities. Pieter Huizing claims that this can, and must, change. PhD defence on 10 March 2…

What’s at stake at the NATO summit in The Hague? Three academics from Leiden share their insights.

Based upon an academic partnership between the Universities of Birmingham in the UK and Leiden in the Netherlands, Universities and Society at the End of Empire and Beyond (UniSoc) uses these two global seats of learning as a starting point to examine the role of universities in the transition from…

For every period, it is a challenge to unearth the details of political trafficking; yet the effort needs to include all relevant persons, groups, and institutions – not only those wielding formal responsibilities. We hope to reinvigorate this effort by inviting specialists to present their research…

Lecture

Niels van Leeuwen is enrolled in the Master Public Administration: Economics & Governance. During the first stage of his master, he did an internship in the United States, at the economic affairs department of the Royal Netherlands Consulate General in Chicago. ‘There are more ways that lead to Rome…

At the 24-th session of the Assembly of States Parties to the Rome Statute, held in The Hague 1-6 December, the Grotius Centre for International Legal Studies played a prominent role, contributing cutting-edge research and expert insights to key debates on international law.

Moderne oorlogsvoering kent geen grenzen. Dreigingen zijn steeds vaker digitaal. Promovendus Annelies van Vark stelt dat Scandinavië beter voorbereid is op gevaar. Zij pleit voor een sterkere rol van de krijgsmacht, herinvoering van de dienstplicht en paraatheid – óók bij burgers.

Work balance has been a hot topic at the faculty for several years. A smart approach to lectures can help reduce workload. Three (senior) university lecturers share their tips.

Tuberculosis bacteria survive by hiding in our immune cells. In her PhD research, biologist Salomé Muñoz Sánchez explores how boosting the body’s own defenses might outsmart this deadly pathogen. Her work reveals two key proteins that help immune cells destroy the bacteria.

Our constitutional democracy is under pressure. Politicians are increasingly bending rules and institutions to their will, often in small steps. PhD candidate Jorieke Manenschijn warns that through a combination of subtle changes we can cross a line without realising it.

How can we cooperate better as a Faculty? Both with each other and with the outside world. Around 70 students and staff discussed this during the latest strategy session in Corpus. Keynote Harry van Dorenmalen, former president of IBM Europe: 'You know best what this Faculty stands for and what it n…

In this series the Vice-Dean and portfolio holder of education in the board of the Faculty of Archaeology will reflect on the state of education. Posts can range from shedding light on current national shifts in the university landscape to arguments as to why it’s important to be timely with designing…

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

On 5 October, mediator Johan Remkes presented his report on the nitrogen crisis and what he thinks is the best way forward. Leiden University professor and nitrogen expert Jan Willem Erisman responds to Remkes’s recommendations. ‘It’s a step in the right direction.’

What happens to children of extremist parents? Commissioned by the Scientific Research and Documentation Center (WODC) of the Ministry of Justice and Security, four ISGA researchers, Layla van Wieringen, Daan Weggemans, Katharina Krüsselmann and Marieke Liem, wrote a report on the nature and extent…

Stories of resistance in the Second World War are widely covered in Dutch historiography: Hannie Schaft, Erik Hazelhoff Roelfzema, and Professor Cleveringa are some of the best known. But these accounts largely focus on the Dutch domestic perspective. On the other side of the world, a complex colonial…

Seven researchers from Leiden University have been awarded an ERC Starting Grant. This will enable them to start their own project, build their research team and put their best ideas into action.

Imagine no one in the Netherlands would eat animal products anymore, what would happen? And would it contribute to more climate justice? That is the theoretical exercise that environmental scientist Jan Willem Erisman and landscape architect Berno Strootman are taking up. 'Sometimes you have to think…

A team led by Leiden University in the Netherlands and the National Radio Astronomy Observatory have, for the first time, robustly detected semi-heavy water ice around a young sunlike star. In this ice, some of the ordinary hydrogen atoms have been replaced by deuterium, a heavier variant of hydroge…

How can we supply the growing world population with sustainable energy? At Laurens College in Rotterdam, Prof. Marc Koper speaks with the students about the crucial role of chemistry in the energy transition. Guest classes like this are a good way for school students to learn about the academic world,…

How do you ensure a healthy work balance when the workload increases exponentially overnight due to a pandemic? Head of IT and Facilities Marjana Rhebergen and Information Manager Rob Goedemans, together with their colleagues, had to manage the sudden switch to online education. They talk about their…

With a self-converted red camper van, biologists and twin brothers Kevin and Marvin Groen go on a nature adventure in Eastern Europe. Together, they search for wild animals, beautiful nature and places to sport. From a long search for a bear in the Slovakian wilderness to the discovery that pelicans…

Did he dare take a gamble with his PhD research? Jeroen Methorst didn’t have to think long about it. It could fail or turn out very well. The latter is the case. Methorst developed a computer system that helps researchers find the protein they need. ‘Our whole group is now using this program.’ Methorst…

Researchers from the Institute of Public Administration and the Institute of Security and Global Affairs at FGGA are launching a new research programme: Governing Polarized Societies (GPS). The programme will focus on the way in which governments are dealing with the increasing polarisation in society.…

eLaw - Center for Law and Digital Technologies at Leiden University, hosted the first Horizon Europe BIAS Project co-creational workshop geared towards defining the requirements for identifying and mitigating diversity bias in AI systems used for recruitment purposes.

One and a half hectares of polder, a large volume of water, and a group of curious researchers from various universities and scientific backgrounds led by ecologist Maarten Schrama. These are the ingredients needed to answer the question: how do water retention areas affect nature, animals, and our…

A new AI model will soon be able to predict the risk of infection in postoperative patients. This will allow healthcare providers to take preventive measures and detect complications at an earlier stage.

Banquets for the rich, porridge for the poor and a standard diet of bread, olive oil and wine. Just a few assumptions about the Roman diet.

An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…

According to a new study, for half of the world population the answer would be yes. For the other half: maybe? Leiden environmental researcher and head author Nicolas Navarre explains: ‘With improvements to crop yields, reductions in food waste, and changes in consumption patterns, 90% of people could…

Maarten Jansen, professor emeritus at the Faculty of Archaeology, was appointed as Distinguished Emeritus Professor for two years at the University of Bonn. In this position, Jansen, a world-renowned specialist on ancient Mexican pictorial manuscripts, will further expand upon the long-standing collaboration…

In this new series the Vice-Dean and portfolio holder of education in the board of the Faculty of Archaeology will reflect on the state of education. Posts can range from shedding light on current national shifts in the university landscape to arguments as to why it’s important to be timely with designing…

How should the municipality of Eindhoven organise the reception of asylum seekers? What is the best electoral system for the Dutch Parliament? Governments regularly ask citizens for their opinions. Computer scientist Michiel van der Meer has improved the method used for citizen assemblies. He will defend…