We are saddened by the news of the unexpected passing of prof.dr. Pieter Sjoerd van Koningsveld on 28 July 2021.

Why is water wet? What is ADHD? In De Hoe?Zo! Show, curious 9-and-10-year-olds get answers to their questions. PhD candidates take to the stage to demonstrate just how exciting science can be while enhancing their own communication skills at the same time.

Famine, bombing of civilians and the almost complete destruction of Gaza. The world looks on at an unfolding humanitarian disaster. Why have our international organisations failed to prevent this tragedy? An interview with Professor Jan Aart Scholte, an expert on globalisation and global democracy.

Leiden has an international reputation as a stronghold of knowledge about cultures worldwide. Under the umbrella name of LeidenGlobal, Leiden University, the National Museum of Antiquities, the Natioial Museum of Ethnology and five research institutes are working together to disseminate this knowledge…

Olivier Morskate studied Public Administration at Leiden University and did an internship at the European Parliament's Liaison Office.

Environmental scientists Stefano Cucurachi and Paul Behrens and astronomer Jorryt Matthee have received prizes during the New Year's reception of the Faculty of Science on Tuesday 8 January. In addition, Kavli Prize winner Ewine van Dishoeck announced a new award.

On Prinsjesdag, 16 September 2025, the Faculty of Governance and Global Affairs (FGGA) opened the new faculty year with a reception at Wijnhaven. The opening was dedicated to the university’s lustrum theme: ‘Ahead of Time’.

The balance is positive: the faculty is growing faster than expected, reserves have been built up, and new programmes are attracting many students. At the same time, rapid growth requires realistic budgets, targeted staff expansion and agility in changing circumstances.

Even with state-of-the-art technology, it is almost impossible to see: a cosmic neutrino. Yet scientists have managed to image this particle with a deep-sea telescope. And that could help to better understand our universe. Leiden particle physicists collaborated on this ambitious project, published…

In the sixteenth century, many Protestants fled to the Northern Netherlands to avoid Spanish oppression in the south. This exodus included tapestry makers from Oudenaarde who eventually settled in Gouda. Professor by Special Appointment Yvonne Bleyerveld and researcher Jos Beerens have been awarded…

The number of international organisations has increased over the last decades. As has the number of cities interested in housing these organisations. International organisations bring wealth to cities and help improve their reputation. They often act as a magnet for other international corporations.…

Reuse everything and stop producing waste. By 2050, the Netherlands should have a circular economy. However, the new Integral Circular Economy Report by the Netherlands Environmental Assessment Agency (PBL) shows that there is still a long way to go. For the report, the Institute of Environmental Sciences…

Science education project Space Awareness engaged 230,000 people in 68 countries with the excitement and challenges of space sciences and technologies. After three years, the project coordinated by Leiden Observatory came to an end in March and has now been evaluated.

New Online Platform Launched to Support Global Children's Rights Legislative Reform

‘Children’s rights are somewhat of a poor relation’, says Professor of Law and Health Mirjam Sombroek-van Doorm. In her inaugural lecture, she will emphasise how more attention needs to be paid to children’s rights in current thinking on law and health.

As part of the LIAISON Research Project, Eduard Fosch-Villaronga and Hadassah Drukarch organised a workshop at the European Robotics Forum (ERF 2021) to engage the broader community in the projects’ goal of liaising robot development and policymaking.

There are still things we can learn from the Ancient Greeks. How they managed to make sure that innovations were accepted, for example. A group of classics scholars, led by Leiden, will be carrying out research on this question funded by the largest ever NWO subsidy.

Emmely Benschop (41) has been working as the new director of the Centre for Professional Learning (CPL) in The Hague for several months now. She sees significant growth potential.

What if seriously ill patients do not want to hear their diagnosis? Does a clinician always need to provide a patient with all available information? Communication researcher Liesbeth van Vliet, medical anthropologist Annemarie Samuels and research intern Fiona Brosig will put these questions on open…

Former President Kgalema Motlanthe of South Africa gave a public lecture on Campus The Hague on 7 July. His story was about the economic transformation of Africa.

From 1 January 2017 Jojanneke van der Toorn will be the first holder of the Workplace Pride special chair, with a focus on the inclusion of people who are lesbian, gay, bisexual, or transgender (LGBT). This new chair is a joint initiative of the Workplace Pride Foundation, Leiden University, and the…

Lecturers should take something of a back-seat role so that there is more opportunity for discussion among students. That is what cell biologist Roland Dirks believes. This inspiring lecturer has won the LUS Teaching Prize.

How do you depict the importance of the Humanities? In honour of the faculty's 444th anniversary, 25 Humanities students, alumni and employees sent in a variety of works of art inspired by the theme 'Humanities matter'. You can come to look at the works from 25 May to 28 August via an art route through…

A long-term mathematical collaboration between South Africa and Leiden will continue with the appointment of Marcel de Jeu as professor by special appointment at the University of Pretoria. He will be working in the field of Positivity.

Just a stone’s throw from Binnenhof, the heart of Dutch politics, Spui Campus will open its doors in early 2026. Join us for a sneak preview.

I was disgusted by the recent Ongehoord Nederland broadcast on 15 September. The racist and hateful comments made by alumna Raisa Blommesteijn were, as far as I am concerned, way over the line and in my opinion also violate Article 1 of the Constitution of the Netherlands.

Role models are key to inspiring the next generation. Fifteen female professors therefore celebrated International Women's Day with girls aged between 12 and 16. Because although the number of women at the (academic) top is increasing, we're not there yet.

Meet the newest Full Professor at the Leiden Observatory: Joe Hennawi. All the way from Santa Barbara, California, Hennawi will strengthen the astronomy institute. In Leiden, he will use his recent ERC Advanced Grant to study how supermassive black holes come into existence.

From 1 September Erwin Muller will be the new Dean of the Faculty of Governance and Global Affairs (FGGA) in The Hague. What makes him the right person for the job? And what can the Faculty expect in the next few years? ‘Quality and content are crucial. Some growth figures are worryingly high.’

Leiden physicists Carlo Beenakker and Bas Hensen receive 35 million euros in a consortium with researchers from QuTech and Delft University of Technology. They will investigate the fundamental limits of quantum physics.

The Hague Global Futures Hub was officially launched at the Wijnhaven building on Campus The Hague on 10 June. This collaboration between Leiden University and the University of Edinburgh represents a significant step forward in addressing global challenges.

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…

In 1925, two young physicists from Leiden University, George Uhlenbeck and Samuel Goudsmit, proposed a radical idea: spin. Their bold hypothesis quickly came to play a key role in physics and formed the basis for later breakthroughs in quantum mechanics. We are celebrating the anniversary of this discovery…

By adding their signature to the collaboration agreement on 31 May, Leiden University, TU Delft, space research institute SRON and NWO confirmed the move of SRON from Utrecht to South Holland. From 2021, the headquarters of the space research institute will be located on the Campus of Leiden Univ…

What does academic freedom mean? And how do we give shape to it in Leiden? The Academic Freedom Core Team considered these questions and presented its final report on 17 June.

Carlotta Rigotti and Eduard Fosch-Villaronga launch a call for workshop papers on fairness and AI in the labour market at the 16th JSAI International Symposia on AI as part of the Horizon Europe BIAS project.

Our lecturers had just a week to convert their subjects into online formats. It was an enormous challenge because by no means everyone was involved in remote teaching at Leiden University. As well as being Vice-Dean of Leiden Law School, Ton Liefaard is also a lecturer. ‘I especially want to support…

On September 20, the Austria Centre Leiden and the Leiden Jewish Studies Association convened a panel to celebrate the launch of Prof. dr. Sarah A. Cramsey’s new book Uprooting the Diaspora: Jewish Belonging and the “Ethnic Revolution” in Poland and Czechoslovakia, 1936-1946.

It has only recently been discovered that single-celled organisms (bacteria and archaea) also have histones—proteins that structure DNA. Now, Leiden PhD candidate Samuel Schwab has found that the histones in these organisms are much more diverse than previously thought. Schwab and his colleagues describe…

The English taught interdisciplinary minor Violence Studies looks into various facets of interpersonal violence. Is this minor for all Leiden students? These two 'colleagues' are certain of it.

A growing number of AI tools are being developed for the legal sector, to help professionals search lengthy texts or check court rulings. Leiden SAILS researcher Masha Medvedeva, an expert on the technical development of these systems, warns: ‘Users should know what’s under the hood.’

Bringing science, technology and innovation to places that normally do not have access to these areas of knowledge. This is the goal of the first Open Science Hub in Portugal, founded in 2017 in collaboration with Leiden University. The hub is managed by assistant professor of astronomy and society…

The student navigator ‘Find your way’ helps students find their way around the university. The ombuds officer for students, Eugène van der Heijden, can also be found on this roadmap. Eugène talks about his work as ombuds officer and what he does for students.

A smart city is of no use if its residents don’t trust it. Tanaquil Arduin, Chief Data Officer at the Municipality of The Hague, and Bram Klievink, Professor of Digitalisation and Public Policy at Leiden University, explain how this can be avoided – to some extent. ‘Make sure civil servants and residents…

Astronomers have captured a new deep field of Pandora's Cluster (Abell 2744) with the James Webb Space Telescope. The images show never-before-seen details. The results are described in four scientific papers. Leiden astronomers Marijn Franx and Mariska Kriek collaborated on the study. 'This opens a…

The Dutch universities are conducting a joint campaign to promote open access: free access to academic and scientific publications. Many Leiden researchers support open access. Given that it involves a shift in the financing from the reader to the author, they point out the need for effective agreements…

Luning and Hein receiving a LUF grant to research the intricate relationship between infrastructure projects and their impact on geopolitics, economics, politics, and culture in Africa

Jeroen van Gessel’s lecturers didn’t always have time for extensive feedback on his written assignments. So, together with tech-savvy friend Menno Hahury, he founded Eduface, a startup to develop an AI teaching assistant. ‘The first users now work three times faster.'

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

On 1 and 2 September, colleagues of Leiden Law School participated in the very first International ELS Conference, organised by the ELS Academy in Amsterdam.