Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

People who are often stressed can feel calmer by making certain adjustments to their breathing. Possibly this also positively affects concentration and attention. Psychologist Roderik Gerritsen studied the effects of breathing differently for the first time, and explains them. Gerritsen receives his…

Spui Campus, Leiden University’s fourth location in The Hague, will soon open its doors. The former V&D department store’s transformation into a university campus is becoming more visible by the week. Removal vans will soon be driving back and forth to move all the furniture there in time. The first…

In the eighteenth century, the Dutch East India Company (VOC) housed its enslaved people on ‘Slave Island’ in Colombo, the capital of Sri Lanka. Today ‘Slave Island’ is under serious threat from property developers. Senior lecturer Alicia Schrikker, together with her Sri Lankan colleagues Iromi Perera…

Ward Hoskens started ten years ago as an intern at one of Leiden's most iconic buildings: the Pieterskerk. Now he is doing his PhD on the question of how the function of this 'church that is no longer a church' changed over recent centuries.

For the Bachelor Honours Class 'Mass Extinction', students produced podcasts about the past, the present and the future of mass extinctions. What exactly is lost when a species goes extinct? What are the practical consequences? But also: does humanity have the moral duty to protect other species?

During the meeting on 26 February with the future users of Aleida Nijland, design agency Studio Linse presented the interior design. The design is based on earlier input from users, and focuses on functionality, comfort and a future-proof working environment. The interior has been designed to be a pleasant,…

Leiden ecotoxicologist Martina Vijver helped shake a European policy proposal in a single weekend. Not with a new experiment, but with years of research on pesticides – and an urgent letter that reached Brussels.

No full-time job, but full-time voluntary work instead. That’s what Aniek Moonen decided on graduating from Leiden University College The Hague, when she started work as a committee member of the Young Climate Movement (Jonge Klimaatbeweging). As its Chair, she joins CEOs and government ministers in…

Hordes of photographers, students trying to catch a glimpse and take selfies, and cheering people at the entrance to Wijnhaven. Canadian Prime Minister Justin Trudeau and Prime Minister Mark Rutte were received like true pop stars, in the late afternoon at Leiden University’s Campus The Hague.

Marlou Schrover played an important role in the study of migration history for many years. Now she is bidding farewell.

While studying Indonesian languages and cultures, Rennie Roos started a company. Today he has been working in Indonesia for more than eight years. Where does his love for this country come from? And how does he look back on his studies? ‘I actually wanted to become a pilot.’

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.

Stephan Raaijmakers has been Professor of Communicative AI since 1 May. Prior to this, he had held this position for five years as professor by special appointment. How has his approach to AI changed in that time?

Dr Mariana Françozo has been awarded a prestigious NWO Vici grant for a five year research project that brings together Indigenous communities, museum collections and interdisciplinary scholarship. Her project focuses on the histories and contemporary challenges of two Indigenous peoples in South America:…

Since January 2026, Alex Geurds has been the new Dean of the Faculty of Archaeology. His start was calmer than many expected, but behind that calm lies a period of exploration, listening, and strategic forward thinking.

From spiders in the bathroom to mice in the kitchen, we share our homes with far more species than we realise (whether we like it or not). Researchers at Leiden University and the University of Helsinki are collecting stories about how people live alongside these non-human housemates.

What effect did the lockdown have on young people? Leiden researchers started a study of this in the first year of the covid pandemic. They discovered an impact on the development of the brain areas involved in social behaviour. The researchers published their discovery in Scientific Reports at Nat…

‘All the groceries, but not a fig for young workers’, read a banner during the occupation of Ahold’s headquarters in 1981. ‘For a long time, young workers were not taken seriously, but they managed to put themselves on the map’, says historian Rosa Kösters.

Next week, Sara Perlstein will defend her PhD on risk talk: the everyday conversations we have about risks with people close to us. From eating sushi to climbing or smoking, these informal talks shape how we deal with danger in other ways than official health advice does.

In the Philippines, Indigenous communities have been harvesting wild honey for centuries. A new chemical analysis of this honey now provides insights into the biodiversity of the region. ‘And an additional reason to protect the national tree properly,’ says lecturer Merlijn van Weerd of the Centre for…

POPcorner The Hague has become a familiar and trusted space at Leiden University in The Hague. It’s where students meet, find support and work together to build an open and approachable student community.

Researcher Daan van der Vliet, together with colleagues from the Netherlands Institute for Neuroscience, Leiden University and Utrecht University, has discovered an important mechanism that may be linked to severe cases of multiple sclerosis (MS): the brain contains large numbers of abnormal immune…

Anne Land has been working at Science Communication & Society — the department that researches and teaches science communication — for fourteen years. What makes her work special? ‘That moment when students suddenly realise: this is exactly what I want to do.’

Astronomers have measured the mass of a dormant, supermassive black hole in the early universe for the first time. Thanks to a combination of the James Webb Space Telescope and a natural cosmic magnifying glass, researchers were able to weigh the black hole directly based on its gravity.

From children’s birthday parties to international ambassadors, the Old Observatory attracts a wide range of visitors. Student coordinator Sanne van Beek connects visitors and students, ensuring everyone — from five to sixty-five — learns something about the stars.

Since 1 October, Sabina Chiță has been working as a coach for first-generation students in Physics. But who are first-generation students, and why might they need a coach? Six questions to Sabina Chiță.

Always losing your way, even in places you’ve been visiting for years? You may have Developmental Topographical Disorientation (DTD). Psychologists from Leiden are investigating this relatively little-known condition at the Lowlands festival. ‘The ideal place to study getting lost.’

Professor Miguel John Versluys of Leiden University has been recognised with the esteemed Humboldt Research Award, a testament to his groundbreaking work in global archaeology, reception-studies and the deep history of globalisation. The award, granted by the Alexander von Humbold-Stiftung, celebrates…

For the second time this academic year, Nobel Prize winner Paul Krugman visited The Hague. Addressing a packed lecture theatre in our new Spui building, he spoke to students, staff and professionals about the tension between economic advice and political decision-making.

Reaching the end of the academic year, we look back fondly on the symposia, conferences and events that our faculty hosted in the previous months. One such symposium marked the end of the 5-year long research project ‘Putting life into Late Neolithic houses: investigating domestic craft and subsistence…

As a student, you’re expected to write papers and collaborate. But how do you do that if you’ve never been taught? Thanks to the Grassfields grant, the Science Skills team can scale up its Skill’Ed project and finally provide students with structured support in essential skills.

How can we combat the growing global health crisis of antibiotic resistance? At Leiden University, researchers are tackling this issue from multiple angles. PhD candidate Vladyslav Lysenko develops and redesigns new antibiotic molecules, while Sebastian Tandar studies how we can use existing antibiotics…

For decades, a collection of ancient Mediterranean ceramics and artefacts served as a teaching resource for Archaeology students at the Leiden Faculty of Archaeology. Now, a selection of these objects has found a new audience at the National Museum of Antiquities in Leiden, where Assistant Professor…

In Spring 2023, Leiden University’s Faculty of Governance and Global Affairs (FGGA) launched a new Honours Class ‘Model European Union Simulation: Policies, Negotiations and Transatlantic Experiential Learning’.

How can we slow the progression of atherosclerosis? Researcher Amanda Foks believes the answer may be switching off ageing immune cells. This could lead to an entirely new treatment for heart attacks and strokes. She has been awarded an Established Investigator Dekker Grant by the Dutch Heart Founda…

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.

Professor Sarah de Rijcke became the new Rector Magnificus of Leiden University on 15 January 2026. She introduces herself and shares what motivates her to take on this role.

Education, Organisation

These are turbulent times at Dutch universities. We have all seen what has been and is still happening at various campuses in the country. Protests, demonstrations, occupations. Situations and scenes that deeply affect us all.

Workshop brings multidisciplinary experts together to debate proposed detection technologies and their impact on fundamental rights.

Two years ago, Russian tanks crossed the border into Ukraine. The war seems to be getting closer and closer. Is it time to dust off and reintroduce military service? Our students have their say.

November marks exactly 100 years since the discovery of Tutankhamun's tomb. To celebrate this special discovery, the Faculty of Humanities, together with various parties, is organising the 'Month of Tutankhamun': a month full of activities around Egypt's most legendary pharaoh.

Organisation

As of 1 April 2025, Professor E.A.L.M.G (Elke) Moons has been appointed professor by special appointment of the chair ‘Crime Statistics’ at Leiden University’s Institute of Criminal Law and Criminology at Leiden Law School.

Evaluations of a most challenging year to both staff and students in terms of teaching and education support have turned out remarkably well. Although we had to switch to online education almost overnight, we pulled it off!

Timo Kos has been appointed Vice President of Leiden University’s Executive Board and will take up the role on 1 March 2025. He succeeds Martijn Ridderbos, who will join the board of the Netherlands Authority for Consumers and Markets (ACM) on 1 January 2025.

By making use of artificial tax arrangements via the Netherlands and other countries, corporations and wealthy individuals worldwide together manage to avoid paying $472 billion in tax.

In Ancient Egypt, prominent families engaged in ancestor worship to maintain their high standing. Renata Schiavo researched this link between religion and power for her PhD. ‘People were afraid that their ancestors would bring misfortune if the family’s prestige declined.’

Many humanities graduates find work in digital heritage, but a good pedagogical model to match education is lacking. University lecturers Karin de Wild and Peter Verhaar want to change this with a Comenius grant.