The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

Minuscule elementary particles from space colliding with Earth can give us an insight into the distant objects they come from. But first, you need to know how to catch them. With a Vidi grant from NWO, researcher Sjoert van Velzen will 'hunt' for neutrinos coming from exploding black holes.

For her bachelor’s thesis, Molecular Science and Technology student Madouc Bergers synthesized her own molecule that can inhibit the breakdown of sugars. Although most students do not even manage to make one building block, Madouc made three. Partly because of this, she has been nominated for the Science…

‘Wadden Sea Sounds’ is the name of a new project launched by the Waddenvereniging in collaboration with researchers from Leiden University and the University of Groningen. The aim is to find out how underwater noise affects marine life in the Wadden Sea.

Alain studies Public Administration and is politically active. He talks about why it is important for young people to be politically active and vote.

Every year, an NWO PhD in the Humanities grant is awarded to a prospective PhD candidate at the Faculty of Archaeology. This year, the grant went to Maia Casna, enabling her to study respiratory disease in the past. ‘My hypothesis is that the rapid formation of cities in the medieval Netherlands, must…

A European bachelor’s degree, an enormous web of collaborations and masses of fantastic opportunities for researchers and support professionals: in two years, we as a university have come far within the Una Europa alliance, says Professor Joanne van der Leun. She rejoined the Una Europa Board of Directors…

Western countries still tend to view Africa as the periphery, says anthropologist Mayke Kaag. In her inaugural lecture, she calls for a shift in perspective: to see Africa as a mirror of global developments.

The Dutch police face complex challenges, from organised crime and polarisation to digitalisation and new forms of crime. To deal with this effectively, they need innovation and intensive collaboration, says Professor by Special Appointment of Police Studies, Monica den Boer, in her inaugural lectur…

Should we be growing rice and building materials instead of grass for cows? From invasive crayfish to cultural heritage and groundwater levels: ten graduating students explored the future of the Groene Hart, the rural region just outside the cities of Delft, Rotterdam and Leiden where they study.

Joachim Koops, Professor of Security Studies and Scientific Director of Leiden University’s Institute of Security and Global Affairs (ISGA) has been awarded a ‘Jean Monnet Chair’ with a focus on ‘The European Union’s Role in Security and Global Affairs’ (EURISGA).

On Saturday, May 4, Dr. Verena Meyer delivered opening remarks at the International Webinar 'Santri, Literacy, and Indonesia', organized by the Bali Santri Literacy Community (Sanubari) Nurul Ikhlas Islamic Boarding School in Jembrana, Bali, Indonesia.

Microscopic swimmers such as bacteria do not always swim alone. There are advantages to exchanging information and cooperating. Stefania Ketzetzi and colleagues now show in Nature Communications that human-made microswimmers, too, can cooperate.

Taking responsibility concerning colonial heritage and restitution is a pressing issue for countries and museums worldwide. On 23 and 24 May, a Leiden University interdisciplinary symposium will explore new perspectives as a basis for policies. Organising professors Carsten Stahn and Pieter ter Keurs…

A 1K Z1E j3 bench has been in the Huygens building since Thursday. The bench symbolises making suicide, depression and despair negotiable. 'We hope this bench invites people to start the conversation about how they are really doing,' says student wellbeing officer Elly van Laar. 'But it all starts with…

Funded by a ZonMw grant, the LUMC and the Health Campus The Hague will be working with headache patients on research into the use of an electronic headache diary. This resource can help patients gain a better understanding of their migraine attacks and, together with the physician, produce the best…

But how do you do it? At the annual Education Showcase, lecturers at the Faculty of Humanities could talk to their colleagues about teaching methods and teaching. Plenty of tips were exchanged during the information fair, workshops and drinks. Five participants talk about they learned.

Jojanneke van der Toorn is kicking off the new Academia@WorkplacePride year with the LGBTIQ+ Workplace Inclusion Symposium. As a social psychologist, she wants to share knowledge and gather experiences relating to diversity and inclusion at work

It may seem as though adolescents do as they please, but they are more sensitive to their parents’ opinions than they would appear. The adolescent brain reacts strongly to parental criticism or praise. These are the results of a study by an interdisciplinary research group of psychologists and neuroscientists…

On 10 May 1940, the Netherlands was taken completely by surprise by the attack of the German army. Wasn’t it? In his dissertation, Wouter Linmans debunks the idea that the Second World War took the Netherlands by surprise. ‘From 1935 onwards, all major political parties wanted to invest in the military.’…

As of 1 October, David Holmes has been appointed full professor of Pure Mathematics at the Mathematical Institute (MI). His work lies at the intersection of algebra, geometry and number theory.

Social scientists from Leiden University have worked with an international team to create teaching modules on migration.

How can we best tell the current generations about some of the darkest parts of our past? To answer this question, researchers from Leiden are working with the Gedeeld Verleden, Gezamenlijke Toekomst foundation on public programmes about the Dutch history of slavery.

To truly understand Dutch literature, we have to look beyond borders. At least, that is the view of Sander Bax. From 1 August, he will be Professor of Contemporary Dutch Literature and Culture in a Transnational Dynamic.

Una Europa, an alliance of 11 top European universities, provides annual seed funding for new research and teaching projects. Assistant Professor Carmen van den Bergh applied for funding with her Flemish and Italian counterparts. Thanks to this funding and the support of Erasmus+, students can now take…

The tenth Europa Lecture was delivered by Corinna Wissels, State Councillor at the Administrative Jurisdiction Division of the Dutch Council of State, deputy justice of the Dutch Trade and Industry Appeals Tribunal and member of the EU-UK Withdrawal Agreement arbitration panel.

Sterre ter Haar has won the Rachel Carson Graduation Prize for her thesis on how rising levels of CO₂ affect the nutrient content of plants. For the Industrial Ecology student, the award is a crowning achievement after a difficult period of recovering from long COVID.

How do you progress from an immense gas cloud somewhere in the universe to a star with planets? Research by Astronomy PhD student Martijn van Gelder sheds more light on the earliest phases of this process. He will receive his doctorate on November 24th.

What if AI doesn’t just support engineers, but actually works alongside them? A large consortium, including Leiden University, gets 3.7 million euros. They will explore novel synergies between engineers and AI, in industrial engineering design areas such as automotive engineering.

Leiden University has designed a new Urban Development Plan for the Humanities Campus. This plan incorporates participation from the immediate environment (neighbours and nearby residents). The plan will be available for viewing at the Leiden city council offices from 22 December for six weeks.

The right medicine in the right dosage for every patient, that is something medical science aspires. 'Personalised medicine' is the term for that. But it does require a lot of research with patient data and that can be hard to get due to privacy legislation. Researchers Laura Zwep and Coen van Hasselt…

Even though the COVID-crisis continuously evolves and is marked by new realities and uncertainties, we can carefully begin to take stock looking back on the first phases of Dutch crisis management. What can we learn reflecting on the crisis strategies of this extraordinary and transboundary crisis that…

As from April 2023 all students at Leiden University, Delft University of Technology and Erasmus University Rotterdam will start using the eduXchange portal to register for a minor.

In 2022, Leiden will be the European City of Science. University lecturer Jaap de Jong has created special assignments for the journalism master's students to celebrate this: they will go into the city to visualise knowledge from the city.

Antoaneta Dimitrova, Professor Comparative Governance, presented the Cleveringa Lecture at the Vaclav Havel Library in Prague last week. We spoke to her about her experience.

Protests against textbooks on trans persons in America and against a reading hour by drag queens in Rotterdam: it has been raining protests recently against people with a gender expression that does not match their birth sex. Why does this evoke such resistance? We asked Professor by special appointment…

Sunshine, ice cream, coffee, and plenty of good vibes. Once again, students and staff made the most of the We are Science Week. Relive some of the highlights with our photo report!

For four years, Vicky Beckers examined thin slices of wood under a microscope, mapping the anatomy of two plant families. Her research helps identify different wood species, benefiting both the timber trade and archaeology.

Police investigations use wiretapped phone recordings as investigative material fairly regularly. But how do they know that the voice on the recording actually belongs to the suspect? PhD student Laura Smorenburg is trying to answer that question.

In a world where bacteria are increasingly resistant to antibiotics, Emma van Groesen set out to find a solution. This month she obtained her PhD, after four years of research into new variants of the antibiotic vancomycin. With success.

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…

The Leiden municipality wants to make the city centre climate-proof and combat heat stress by greening it. But they want to do this in a way that does justice to the city’s heritage. Researcher Fenna IJtsma delves into historical greenery to offer inspiration.

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.

Online dating is hard enough on its own, but these days you also need to know what terms like ‘zombieing’ and ‘prela’ mean. Alumni Milou Andree and Vivien Waszink wrote ‘Swipen voor een kwarrel, a book that discusses all the dating jargon, from the ‘scharrel’ to ‘pigbutchering’.

Have you ever experienced the feeling of awkwardness when attending a party where you didn’t know anybody? Ever felt shy at a party within the first few minutes? While this feeling is labelled loosely as feeling socially anxious, social anxiety disorder goes to a much further extent.

On Wednesday 27 September we will be holding a debate for students and staff on our links with the fossil fuel industry in relation to the topic of sustainability. All students and staff of the university are cordially invited. If you’re still not sure about whether to attend, these four questions and…

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.

In cryptography, the sky is the limit according to the new professor Mathematical Cryptology Léo Ducas. He already designed several cryptosystems as part of his research at the Centrum Wiskunde & Informatica (CWI), some of which might soon be adopted as new international standards. Since December,…

Children who lost their fathers in early modern England ran the risk of being sold to the highest bidder. Although Shakespeare wrote about it in his plays, the practice disappeared from collective memory for a long time. University lecturer Lotte Fikkers is bringing it back to light in a new Vidi research…