Last week’s sunny Lowlands festival was not just an occasion for partying and dancing. Visitors were also given a glimpse – as test volunteers – into scientific research. How do you conduct research on fear and silent communication at a festival?

Hunter-gatherers caused ecosystems to change 125,000 years ago. These are the findings of an interdisciplinary study by archaeologists from Leiden University in collaboration with other researchers. Neanderthals used fire to keep the landscape open and thus had a big impact on their local environment.…

Scientists and non-scientists co-creating breakthrough citizen science projects for measuring, understanding, and mitigating air pollution. That’s what happened during the first international workshop of the newly established Citizen Science Lab from 22 until 26 January at the Lorentz Center at Leiden…

Populist parties in national parliaments have a different style of working from their colleagues in other parties. They often vote against Cabinet proposals, but do not ask more questions about Cabinet activities. This is the finding of Leiden research in different European countries.

Over a thousand researchers and students protested in Leiden on 2 September against the plans to transfer money to science and technology at the expense of other disciplines. Just metres away, Minister of Education, Culture and Science, Ingrid van Engelshoven, was giving a speech at the opening of the…

Thijs Porck has successfully applied for a subsidy for a research project that will study the early correspondence of G. J. P. J. Bolland, an autodidact student of Germanic languages who would later become one of the country’s leading philosophers. The project is sponsored by Leiden University Fund…

Sandy Overgaauw has been awarded a 25,000 euro grant from the LUF for her research into PTSD in Syrian refugee children in the Netherlands. The research should lead to a screening method that can be used to determine which children are at higher risk of developing posttraumatic stress disorder (PTSD…

Each year on or around International Women’s Day, the university hosts the Annie Romein-Verschoor Lecture. You are welcome to attend − even if you wouldn't call yourself a feminist, says professor and organiser Nadine Akkerman. ‘You get the best discussions with a diverse audience.’

Earning some quick money by drug trafficking, committing an act of violence or almost collapsing under performance pressure. In the four-part NeurolabNL Young vodcast young people talk openly with neuroscientists about high-risk behaviour and performance pressure. How did they find their way back?

Antoni van Leeuwenhoek, the father of microbiology, died 300 years ago. 2023 has therefore been designated the Antoni van Leeuwenhoek year. The new Unimaginable exhibition in Rijksmuseum Boerhaave is about the amazing world that Van Leeuwenhoek made visible. What was so special about the way he worked?…

The Capacity to Innovate is a recently published book by Sarah Giest, Assistant Professor at the Institute of Public Administration. In this article Sarah gives insight in the main findings of the book and the experience developing it.

Professor Anne Meuwese is calling on governments to show more vulnerability when it comes to providing information about how they function.

On Friday 9 September, Jeanin van Hooft, Professor of Gastrointestinal and Liver Diseases, will deliver her inaugural lecture titled: 'The scope of connection'. She emphasises the value of collaboration and connection for scientific research. In addition, she pleads for more diversity; according to…

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

An inclusive society in which everyone has equal access to health and wealth is the focus of the new Leiden-Delft-Erasmus Centre on the Governance of Migration and Diversity. Professor of Migration History, Marlou Schrover, also works at the new centre. ‘It is important to add a historical perspective…

‘Visibility and secrecy are both valuable tactics and should not be antagonized in LGBT movements, ’ says Jingshu Zhu. Zhu will defend her dissertation on Wednesday 21 February. Time for a short interview with the PhD candidate.

Court cases that get out of hand are enacted again and again, according to PhD candidate Tessa de Zeeuw. De Zeeuw: ‘Even if the court comes to the correct judgement, from a legal point of view, the issues that appear in a case such as that of Lucia de Berk continue to

Reinout Vriesendorp has been Professor of Insolvency Law since 2016 as well as a partner at law firm De Brauw Blackstone Westbroek. For nine years, he has advanced multidisciplinary collaboration, internationalisation and high-quality education. On 9 May, he will deliver his valedictory lecture after…

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

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.

By reforming agriculture in targeted areas, we can protect the Natura 2000 areas much more effectively. This is what Jan Willem Erisman of Leiden University and Ton Brouwer of Gispoint consultancy write in a new report. They have created a special, nitrogen map of the Netherlands that shows the areas…

From Persia and Arabia to North Africa: as early as the nineteenth century, there were Dutch people who used the camera themselves in various regions of the Middle East.

Unplugging equipment that's secretly guzzling electricity, putting the curtains behind the radiator and only using a water-saving showerhead. The students participating in the Student Energy Race are given tips that everyone who cares about the environment and their wallets should learn from.

Registering your hypothesis and analysis plan online before starting your study – why should researchers bother? Henk van Steenbergen, a researcher in cognitive psychology, decided to give it a try. 'I used it as an exercise in open science.'

Not taking into account the saturation of drug targets can lead to wrong conclusions about the duration of a drug's action. This is what former PhD candidate Wilbert de Witte writes together with the Leiden professors of pharmacology Meindert Danhof, Piet van der Graaf, and Liesbeth de Lange in Nature…

Since the credit crisis erupted, drastic cutbacks have been made in all kinds of public sector organisations, creating some very difficult choices for the top civil servants who had to implement them in their own organisation. This is the conclusion of Public Administration scholar Eduard Schmidt, whose…

A moon rock from the Apollo 17 mission, antique globes and the cosmos according to Wassily Kandinsky. Ewine van Dishoeck, Professor of Molecular Astrophysics, has put together an impressive exhibition at Rijksmuseum Boerhaave.

On Wednesday 13 December at 16.15 hrs René Hage will defend his doctoral thesis entitled ‘Handhaving van privaatrecht door toezichthouders’ (Enforcement of private law by regulatory authorities) at the Academy Building of Leiden University. His supervisors are Professor Jaap Hijma and Dr Iris Houben…

'We are very happy with this recognition! The great thing about this prize is that it celebrates team effort', Joanne Mouthaan responds to the Casimir Prize for the education project 'E-learning Suicide Prevention'. Colleague Maartje Schoorl calls the prize the icing on the cake of good education in…

Three weeks into intelligent lockdown and more to go. An extraordinary situation in which we are now working from home. How do our colleagues do that? Meet ups 'in the flesh' at the printer, having lunch and coffee in the FSW cafe or conferring live and lecturing in the Pieter de la Court Building are…

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…

Leiden researchers have made an important contribution to the successful ‘Beyond the Nile’ exhibition in the American J. Paul Getty Museum. They also contributed to the exhibition volume that will be presented to Rector Magnificus Carel stolker on 5 September.

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.

Writing essays, refining grant applications, or creating a new course curriculum—ChatGPT assists students and researchers in these endeavours. What this new technology means for working in academia, was discussion at the fourth Psychology Connected event.

Scientists widely agree that we must limit global warming to 1.5 degrees Celsius to avoid catastrophic climate impacts. Environmental scientist Laura Scherer investigates how we should change lifestyles to achieve this temperature goal. Her research is part of the 4.8-million-euro Horizon 2020 project…

Some people are more sensitive to depression than others. But why is that the case? Clinical psychologist Niki Antypa studied how vulnerability to depression is influenced by cognition. She also found a first careful indication that a treatment with omega-3 fatty acids might provide a solution.

Most Leiden master’s students who graduated between October 2016 and September 2018 soon found a job that was related to their degree programme. These are the results of the 2019 Dutch National Alumni Survey (NAE: Nationale Alumni Enquête). The effects of the coronavirus crisis on the labour market…

‘In Hong Kong, the elderly found our popular nature routes boring, so they now cycle our action-packed routes through New York.’ What once started as an assignment for the Master Programme Media Technology, has grown into the international market leader in the field of virtual reality exercises for…

On 1 September, Menno Tuurenhout handed over the position of Director of Operational Management in the Faculty Board to Suzy Sirks-Bong. How does he look back on his time as Director? And how does Suzy see the future? A double interview.

Being rejected always hurts, but so does having to reject someone. Social psychologists have discovered that at interviews to select suitable housemates students dehumanise candidates to make it easier to reject them. That may sound harsh but, according to the researchers, it is also logical.

Leiden University is the first Dutch university to join the Healthy Universities international network. Lifestyle workshops, rewards for good behaviour and the latest interventions encourage students and staff to live more healthily. The experiences gained through this network will be used in scientific…

On June 16, 2025, the Institute of Political Science at Leiden University hosted a panel debate about the ongoing mass student-led protests in Serbia. The protests have shaken the increasingly illiberal regime in Serbia to its core and have grown into the largest student protests in Europe since 196…

A packaging-free shop, small mobile homes, solar panels on all Leiden's roofs… Jeroen Schrama, alumnus of Public Administration, is a creative world improver. ‘If we really want to save the world, we have to make much more radical choices.’

Besides being the author of such a classic work of literature as The Hobbit, Tolkien was also Professor of English Language and Literature in Oxford. How did he incorporate his research in his fiction? An international conference on the subject is being held in Leiden on 18 June.

Psychology teacher of the year is Anouk van der Weiden. The master thesis awards are for Irina Verhülsdonk and Christel Klootwijk. Eliška Procházková receives the PhD publication prize; Katja Cardol and Judith Tommel the PhD wild card: the Open Science Award. Conny Binnendijk earns the OBP prize and…

This summer, Leiden, The Hague, Noordwijk and Delft will be hosting the ‘Sizzling Summer of Space’. To tie in with the international Space Studies Programme, all kinds of activities on space exploration are being organised, from a film evening to a Science Café and an exhibition of satellites to the…

The most important group of medieval manuscripts from the Special Collections of the University Libraries of Leiden (UBL), the Codices Vossiani Latini, is now available in open access via the Digital Collections. The 324 Latin manuscripts copied in medieval Europe, along with 48 post-medieval manuscripts,…

Relations within the Kingdom of the Netherlands are imbalanced, says Professor by Special Appointment Wouter Veenendaal. The Caribbean autonomous countries and special municipalities do not have enough of a say and have administrative problems to contend with.

The new Erfgoed Gezocht/Heritage Quest website means you can play armchair detective and hunt for undiscovered burial mounds in the Veluwe. This will help stop them being destroyed by construction projects. The website is the initiative of the Leiden University Faculty of Archaeology in collaboration…

Mark Rutte, the Dutch prime minister, gave a guest lecture to first-year law students at Leiden University. He spoke about democracy, the war in Ukraine and the role of the Netherlands.