Immunologist Leender Trouw specialises in the complement system, which is part of the immune system. In some diseases drugs help activate or inhibit this system. This is best done ‘in the right place at the right time’ − the title of his inaugural lecture.

You might be wondering what the reconstruction of the former V&D store at Spui in The Hague looks like now. If so, you can come and find out for yourself. On Saturday 8 June 2024, from 10.00 – 13.00 hrs., the building site of the new Campus The Hague Leiden University Building will be open to the pu…

The Rein Dool painting depicting board members of Leiden University will be moving soon to the Reception Room in the Academy Building, where more people will be able to see it.

Looking for a great meal at a sustainable restaurant? Since Monday 2 September, you can visit restaurant De Schotel in the Lecture Hall Building. This renovated space offers a unique combination of comfortable study areas, a no-internet zone, and a wide selection of delicious food and drinks.

The third Tuesday of September is getting closer and that means ‘Prinsjesdag’ (Little Prince Day) and the opening of our own faculty’s academic year. We have created an overview of all the events that have been organised for this ‘The Hague holiday’ in and around the University.

K-pop band BTS joining the Korean military is a compulsory obligation, one with increased meaning as tension builds on the Korean Peninsula and around the world, postdoc Aleydis Nissen writes in an article in The Diplomat.

On 11 November Professor of Gastroenterology and Hepatology, Monique van Leerdam will deliver her inaugural lecture entitled, ‘Aiming for Prevention’. Van Leerdam, who specialises in hereditary tumours, was appointed professor in July 2020. In her inaugural lecture she will discuss the importance of…

Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

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

How can the people of Leiden age as well as possible? And what is needed to reduce health disparities? That is the mission of Leiden Healthy Society Center, a new partnership between the Municipality of Leiden, Leiden University and many other partners in the city.

In one in four criminal cases in the Netherlands, the court receives a report on the state of the defendant’s mental health. How is that information used exactly and what are the consequences? Scientific research has been lacking in this area. The PhD research of Roosmarijn van Es is a first step in…

In June 2024 the Faculty of Archaeology welcomed a new Assistant Professor. Dr Jennifer Swerida, originally from the United States, will strengthen the Faculty’s expertise on the archaeology of West Asia. ‘I explore human-environment relationships inside an ancient oasis and the surrounding land. Previous…

Aukje Nauta's professorship at Leiden University has been extended for another five years. She will further research how connectedness in the workplace helps people to be their full self and perform better. Her conviction: for a healthy work culture, we need to be willing to feel a bit more ashamed…

How to strengthen mutual trust between agencies in the criminal justice system and youth with a migration background or weaker socio-economic position. The Netherlands Science Agenda has awarded 1.5 million euros to a consortium to find out.

Most young alumni who graduated during the COVID-19 pandemic did not get a graduation ceremony, nor did they have the chance to sign their name in the Sweat Room. Thanks to the Alumni Office, they now have the chance to do so after all.

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighbouring stars for the first time, providing a new window to better understand the chemical evolution of the cosmos.The results are published today in the journal Nature Astronomy.

Can a robot help prepare cancer medication in a hospital pharmacy? That’s what hospital pharmacist Tjerk Geersing investigated in his PhD research. He compared manual and automated preparations in terms of quality, efficiency, and safety. He graduated on 19 March.

Share experiences, gain inspiration or catch up with colleagues: you can do all of these at the Teaching Fair on 30 June. Co-organiser Anna Benjamins explains what the afternoon has in store.

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…

For decades, unmarried girls and women in the Netherlands were forced to give up their newborn children. The impact was profound and persists to this day for the mothers, fathers, relinquished children, and the adoptive families in which they were raised.

Nanomaterials can pass much further along the food chain than was previously thought. The particles can change shape and size in each organism, enabling them to pass on to the next one in the chain. Researchers from the Institute of Environmental Sciences discovered this accidentally when using a novel…

In the article “Neanderthals and Us: We’re More Alike Than Once Thought”, we are reminded that many negative traits, from unintelligent to unsophisticated, have long been attributed to Neanderthals in popular culture. However, recent studies bring to light an ever-increasing amount of evidence contradicting…

On 24 April 2024, Carlotta Rigotti and Gianclaudio presented their new report on sexual violence and harassment in the metaverse during a webinar co-organised by AUDRi, Equality Now, and VULNERA.

On 20 November 2025, eLaw hosted the second capacity-building session of the BIAS project, coinciding with the city’s first snowfall of the year. The training brought together HR practitioners, scholars, consultants, and policymakers to discuss the opportunities and challenges of using AI systems in…

At the transition of the Neolithic to Bronze Age, a societal clash took place between a male dominated oligarchy (also known as the patriarchy) and the matriarchy. The latter managed to exploit vulnerabilities in the 'bro-code' to reboot society's operating system.

Associate Professor Gianclaudio Malgieri (eLaw – Center for Law and Digital Technologies) and Professor Margot E. Kaminski (University of Colorado Law School) have published a new article in the very prestigious Yale Journal of Law & Technology, titled Impacted Stakeholder Participation in AI and Data…

On Monday 10 October a debate was held at the KOG, ‘Tax in the Boardroom’. During this inspiring event, students and tax experts from the business sector and public bodies considered the tax issues that are dominating the public debate. The tax experts were Joost Kutsch Lojenga (Shell), Sebastiaan de…

People in the Early Bonze Age used bronze artefacts as a means of payment. This is the conclusion reached by archaeologists Maikel Kuijpers and Catalin Popa in a PLOS ONE article published on 20 January. The discovery led to a surge of media reports.

Dutch and Flemish partners, including Leiden University, are joining forces as the European Digital Media Observatory (EDMO) in the fight against the spread of fake news, and have received the support of the European Commission.

Terrorism is not a successful communication strategy. After an attack, the attention quickly shifts from the terrorists to authorities and citizens. This is what Jeanine de Roy van Zuijdewijn argues in her dissertation: 'The aftermath: meaning-making after terrorist attacks in Western Europe'. ‘A year…

Inspired by a gift she received at a conference abroad, Laura Kamsma, coordinator of the FGGA International Office, went looking for new promotional goodies to hand out to the representatives of international exchange programmes at Leiden University - Campus The Hague. The gifts had to meet three requirements:…

A design created by student Jill Stoelinga has won our 450 mural competition! From May 12, you can help us paint the artwork. Read on to learn all about what the painting represents and how you can help.

The Municipality of The Hague, Leiden University and CBRE Investment Management (CBRE IM) will together try to realise a University building in the former Hudson’s Bay premises at Grote Marktstraat 48-50/Spui 3. This will facilitate the growth of Campus The Hague. A cooperation agreement was signed…

Diversity and inclusion are core values for Leiden University, and our aim is to offer all staff and students equal opportunities. As the University lacks adequate information about the cultural diversity of our staff, this spring we are taking part for the first time in the Cultural Diversity Barometer.…

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…

In March, Jan Pronk starts as the new Executive Director at the Faculty of Archaeology. We sat down with him for an interview on his background, his drive, and his take on archaeology.

Each year on the university’s birthday, children at primary schools in Leiden and The Hague have a lesson from a professor – about children’s rights and robots in surgery, for example. The children get to do activities. And ask questions: ‘How do you become a professor?’

In the nationalist nineteenth century, people developed an interest in medieval language and literature. The study of medieval material in one’s own vernacular was thought to reveal a great national past. But why, then, was Old English studied by Germans, Danes, Italians and many other nationalities…

On April 22, Lasse van den Dikkenberg defended his dissertation: Living with Flint. For this, he examined flint finds from the Rhine-Meuse Delta. These finds belong to the Vlaardingen culture, which existed here from 3400-2500 BC. His research revealed that import played a larger role in the Neolithic…

Is your strategic vote actually strategic? How can the Netherlands form a stable government? And what should the next government do about migration, defence and the housing crisis? This is what our experts have to say.

On Thursday 30 May, Leiden University hosts a workshop to foster collaborations to improve the governance of European textile waste export. Different stakeholders, including municipalities, associations of textile collectors and sorters, industry and consumers associations, are warmly invited to join…

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The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…

Fossil Free against KLM on greenwashing, municipalities against Chemours on PFAS discharge, climate cases against Shell and ING Bank… There are many examples of recent civil lawsuits on sustainability. But does climate litigation in the civil courts actually have an effect?

Daniela Kraft's group has succeeded in creating a network of microparticles that is both strong and completely flexible. This may sound simple, yet they are the first in the world to succeed in doing so. A real breakthrough in soft matter physics.

For my Policy in Practice research project, Elise van Dansik engaged with a problem that Leiden ‘Social Domain’ policy officers saw themselves confronted with, which was why migrant organizations of Slaaghwijk (a socio-economically disadvantaged neighborhood in Leiden’s north) do not cooperate with…

Dr Eduard Fosch-Villaronga, Assistant Professor at eLaw - Center for Law and Digital Technologies, and 8 partners have been awarded the project 'BIAS: Mitigating Diversity Biases in the Labour Market', a large €4.7M Horizon Europe grant.

The Defence White Paper, titled ‘Strong, smart and together’, is debated in the House of Representatives along with the Defence Budget and raises concerns especially in uncertain times.

At the symposium ‘Diversity and Inclusion in the Police: from Aspiration to Reality’, the central question was how organisations can truly embody diversity and inclusion. The high level of interest (it was fully booked in no time) demonstrates that the topic is pressing—both in academia and in pract…

Historians recently started preliminary research on Leiden University’s role in colonialism and historical slavery. Our knowledge about this is too limited and fragmented. They are looking with fresh eyes at Leiden’s archives and collections. An interview with historians Alicia Schrikker and Ligia G…