De crèche en het klaslokaal zijn misschien wel de meest gunstige plekken voor ziekteverwekkers. Toch is er relatief weinig bekend over hoe kinderen reageren op virussen en bacteriën en hoe het komt dat sommige kinderen veel beter beschermd zijn dan anderen. Simon Jochems, onderzoeker aan het Leids Universitair…

Always wanted to go to a real art auction? Now’s your chance! On 15 February over a hundred works from the LUMC’s art collection will go under the hammer. ‘It’s great fun just to be there, regardless of whether you buy anything,’ says dean and auctioneer Pancras Hogendoorn.

Just like scientific articles, patents cite scientific literature to support their findings. These references provide valuable information on how science is used to develop practical applications. However, extracting this information from patents is not that simple.

How unique is the human capacity for learning and adapting to an environment? In field research – in the rainforest and Artis Zoo – primatologist Karline Janmaat is studying how humans and other primates adapt to their environment in their search for food. She will give her inaugural lecture as Professor…

Gabrielle van den Berg became the Academic Director of LIAS on 1 September 2025: “I hope I’ll be able to make a real difference.”

Neuroscientist Anne Urai has been awarded a Veni subsidy to further develop her ideas over the coming four years on how the brain makes choices. Why did she receive the award? Urai answers five questions about her Veni grant for young researchers.

On Monday 2 March at 16:00, the Faculty of Archaeology opened the travelling exhibition Archaeo‑Sexism. The exhibition will be on display throughout the month in the F0 corridor of the Van Steenis Building, as part of Women’s History Month and International Women’s Day on 8 March.

We will mark the start of Christmas together in the Great Auditorium on 22 December, with the Sempre Crescendo student music company singing Christmas carols for our students and staff. Enjoy atmospheric organ music, sing-along carols and mulled wine afterwards. ‘It’ll be a gem of an event,’ says Beadle…

Advanced Summer School on the European Union and the United Nations in The Hague. Explore global governance, EU–UN cooperation, simulations and institutional visits. Apply by 22 May 2026.

Two researchers from the Faculty of Archaeology have received a grant from the Museums, Collections and Society (MSC) interdisciplinary programme. This grant is for collection-based research. Jason Laffoon is using his grant for research into the origins of Central American turquoise, while Dr Marike…

Where European integration has long been understood as a peace project, Joris Larik argued in his Havel-Cleveringa Lecture that recent developments point to an accelerated shift towards a European Union that places its interests, security and geopolitical position more centrally.

Leiden artist Jos Agasi gets to create the artwork for the atrium of the new Gorlaeus Building. His work was chosen from several entries and will be a real eye-catcher in the building. The artist has a fascination for light and uses it to create works of art with all kinds of materials, objects and…

With this podcast series 'Introduction to Security Studies', you will get to know more about the bachelor's programme Security Studies at Leiden University in The Hague and life as a student in The Hague.

Our annual strategic conference was held this year on 15 and 16 June in Soesterberg, and has now become a tradition at our university.

Seksueel misbruik tussen broers en zussen kan diepe, mentale wonden veroorzaken. Orthopedagoog Sheila van Berkel geeft behandelaars tips voor hoe zij deze wonden kunnen helpen helen.

Carlotta Rigotti, Postdoc researcher at eLaw, and Eduard Fosch-Villaronga, Associate Professor at eLaw, delivered a lecture on AI and non-discrimination, engaging students with the Debiaser demo.

Nadia Bouras will give the Annie Romein-Verschoor Lecture on 6 March. She will call for academic freedom for everyone.

‘Don’t forget us. Don’t stop talking about Iran.’ In a packed lecture hall at the new Spui Campus in The Hague, a panel discussion was held this Tuesday on recent developments, tensions and the wave of state violence in Iran.

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

Sara de Wit has recently joined the Institute for History as an Assistant Professor in African Studies and will work on a new interdisciplinary research project to develop a humanities approach on Digital Health in Africa. Below, she introduces herself.

The new open access book The Science of Citizen Science bundles insights into science that is conducted together with citizens, to promote this growing form of science.

X-ray and CT scanners are widely used devices in research, diagnostics and the industrial sector. And yet they are not nearly as fast and accurate as we would like. Mathé Zeegers is researching the newest technique in the field at the Centre for Mathematics and Computer Science: spectral X-ray imaging.…

Bacteria whirl around in the mouths of most people, forming dental plaques and sometimes causing nasty gum infections. Treponema denticola might be a dangerous pathogen, but not much is known about this bacterium. It was up to Ariane Briegel and her research group to change that.

Professor of International Relations Daniel Thomas is clear: anyone taking peace in Europe for granted is shutting their eyes to reality.

Matthew Broad recently joined the Institute for History as a lecturer in International Relations. He introduces himself.

On 5 November 2021, Professor Michiel van de Sande of the Department of Orthopedics in the Leiden University Medical Centre (LUMC) delivered his inaugural lecture ‘The Art of Doing and Doing Nothing’. Van de Sande used the opportunity to explore both physical and philosophical aspects of co-decision…

Martin van Hecke and Lennard Kwakernaak (Leiden university and AMOLF) develop a mechanical metamterial that can count to ten in their research.

Language is omnipresent: when you talk, app or meet in Teams. Understanding how we communicate with one another and what communication does to us is essential. In her inaugural lecture, Nivja de Jong will call to redress the balance between the sciences and the humanities.

eLaw - Center for Law and Digital Technologies at Leiden University, participated in the Horizon Europe BIAS Project international co-creational workshop geared towards discussing fairness of AI applications in the hiring process and ALTAI requirements.

On 26 January, Rowie Stolk, Laura Hanrath and Marloes Noorloos spoke at the lecture ‘The Right to Demonstrate under Scrutiny’. This discussion session, part of the university lecture series Community. Conversation. Connection., was organised in response to difficult questions about the right to demo…

Professor Nira Wickramasinghe has won the American Historical Association John F. Richards Prize in South Asian History for her book Slave in a Palanquin. Colonial Servitude and Resistance in Sri Lanka' (Columbia University Press: New York 2020).

Organisation

The Covid-19 pandemic has challenged political leaders worldwide, bringing discussion about leadership in times of crisis. In various media outlets, a recurring topic has been the relationship between the gender of a country’s leader and the success of his or her Covid-19 approach. Especially female…

Professor of Computer Science Joost Batenburg has received half a million euros from the Dutch Research Council (NWO) to improve the conservation of historical paintings with 3D X-ray imaging.

Wat als je advies zou kunnen krijgen van je toekomstige zelf? Jean-Louis van Gelder en zijn collega’s ontvangen een ERC Proof of Concept-beurs voor het project YourFutureU, waarin deelnemers gecoacht worden door een virtuele AI-versie hun toekomstige ‘ik’.

Open, extravert, agreeable, stress-tolerant and conscientious. These are the character traits of surgeons according to research by the LUMC.

During the ‘Hour of Remembrance’ on 4 May, the University community remembers its students and staff who were killed in the Second World War. It also looks at freedom and oppression today. Three questions for Sara Polak, chair of the Hour of Remembrance committee.

Galaxies in the early universe contain more dust and hidden star formation than previously thought. That's what Ivana van Leeuwen concludes in her PhD research, where she combines data from various telescopes to create a more complete picture.

Autism research is at times saturated with implicit values, norms and possible prejudices. Researchers should be more aware of this, says development psychologist Carolien Rieffe. She advocates Critical Design: a self-critical view as a scientific method.

How do you find your was as an early career researcher in the academic pressure cooker?

Five teams of teachers are getting started with their educational innovations in the coming academic year, thanks to the Grassroots and Grassshoots grants. This year is particularly special: the grant programme is celebrating its tenth anniversary and has now run for thirteen rounds.

What does it take to ensure that Open Science does not feel like an additional task, but instead becomes a natural part of good academic practice? During the Faculty Lunch Presentation on 19 March, the report “The State of Open Science at FGGA” was presented and discussed with colleagues from across…

Give Nikki IJzerman a football and she’s happy. The midfielder was named Player of the Year by ADO Den Haag last season, as well as obtaining her master’s degree in Journalism and New Media.

Researcher Femke Reidsma has been awarded a prestigious Rubicon grant. With this fellowship, she will spend two years conducting research at Harvard University, where she will join a leading paleoecology laboratory.

Facility, Organisation

Human resources

In the disk surrounding the young star WISPIT 2, not one but two planets are taking shape. Leiden PhD candidate Richelle van Capelleveen played a key role in this discovery, providing a rare glimpse into the early stages of planetary system formation.