Han Meyer, Carola Hein, Paul van de Laar and Sabine Luning, argue that in the current moment of major crises these ship channels necessitate radical reconsideration.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

On 7 July, the Mayor of Leiden, Peter Heijkoop, visited Leiden Law School. During his visit, he learned about the faculty’s commitment to advancing research and education while contributing to tackling the challenges faced by society.

What is the relationship between humans and nature like? And how can we use it to tackle climate problems? In the Master Honours Class ‘Planet in Peril’, students approach climate issues from the perspective of the humanities. ‘Things are not always as one-sided as they seem.’

What does the University mean for The Hague? And what are researchers and students learning from the city and its residents? The Hague city councillors visited Campus The Hague on 27 September and spoke to administrators and researchers. ‘From Schilderswijk to Benoordenhout: we are a university for…

Alumnus Rennie Roos lives and works in Indonesia. What took him there, what does he do there and what inspires him?

For a long time, Thijs Bosker was an average student, until he discovered how exciting learning becomes when there are no ready-made answers. To his students, he passes on one key message: hope is the driving force that keeps us moving forward. They nominated him as Lecturer of the Year.

Most people think of waste as something dirty that needs to be disposed of as soon as possible, but Olivia Yun-An Dung's dissertation aims to show that this does not always have to be the case. For this purpose, she focuses on Tzu Chi recycling in Taiwan. There, an army of elderly volunteers has been…

What is the environmental impact of the fish on our plates? And is an electric car really more sustainable when we include the generation of electricity? Jeroen Guinée maps the environmental impact of products and technologies. He analyses them from raw material to waste disposal. He was appointed Professor…

The course Designing Your Life helps students navigate their career pathways. As it turns out, these pathways are full of twists and turns and - as with many journeys - you only make progress once you gather the courage to take the first step.

What effect did the lockdown have on young people? Leiden researchers started a study of this in the first year of the covid pandemic. They discovered an impact on the development of the brain areas involved in social behaviour. The researchers published their discovery in Scientific Reports at Nat…

In 2025, our colleagues from the Institute of Psychology once again made a strong presence in the media. From (inter)national newspapers to podcasts, discover where they shared their expertise in the media this year.

About forty microscopes, various laboratories, and some 15,000 zebrafish: that’s Sylvia le Dévédec's workplace. She is one of the managers of the Leiden Cell Observatory, a unique facility accessible to all researchers.

Health and safety

Lecture, Studium Generale

A million people in the Netherlands attempt to quit smoking each year, often without lasting success. Health psychologist Kristell Penfornis carried out doctoral research into the role of self-image in smoking cessation. “If smoking is normal in your social circle, it more easily becomes part of your…

Each year, around forty women in the Netherlands lose their lives, most often at the hands of a (former) partner or family member. Judges, lawyers and survivors now turn directly to Professor Marieke Liem for expertise. For her, this is telling: ‘The time has come for greater knowledge and a coordinated…

Echoing corridors, chaotic lessons and the obligatory chit-chat in the playground: for pupils with autism, an average day at school is exhausting. As a result, many of them feel lonely. Elijah, an expert from personal experience, says: ‘In the breaks, I’d sit on my own in a room.’

Almost three years after receiving her honorary doctorate, Dr Graça Machel returned to Leiden University. Over the course of two days she spoke with students, researchers, and other interested persons, about human rights – particularly those of women and children – in a world in which these are continually…

Sexual harassment was the theme of the recent annual symposium of student ambassadors to the Leiden-Bollenstreek police in collaboration with the police and the municipality. An extremely important issue to students − if the 100 places being claimed as soon as the symposium was announced was anything…

A more inclusive and diverse society is what Talisha Schilder, Hawra Nissi and Chiraz Hassoumi spend many hours a week working towards. Their hard work led them to being nominated for the ECHO Award.

From 14 to 29 PhD candidates, seven actively involved faculties and, above all, lots of innovative interdisciplinary research, all with data science as the common denominator. The university’s Data Science Research Programme (DSO) has proven so successful that after five years on a start-up grant it…

If you look at the postwar cartoonists of Dutch origin, Bernhard Willem Holtrop is certainly the most interesting, according to Frenk Driessen. He wrote his PhD thesis on Holtrop - who drew for HP/De Tijd and Charlie Hebdo, among others - and then also published it as a book.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

The Lucia de Berk case or the suicide of Slobodan Praljak at the International Criminal Tribunal for the former Yugoslavia: certain trials keep popping up in media. In her dissertation, Tessa de Zeeuw examines the cultural appeal of such cases and analyses artistic responses. ‘Artworks sometimes have…

From 7-9 June 2023 Global Transformations and Governance Challenges (GTGC) organises its second international conference in The Hague. Deadline for submissions: 15 February 2023.

There should be more social meeting places on our campus. That's one of the outcomes of to the second brainstorming session on the strategic plan. On Tuesday, education and the campus took centre stage during the meeting in Corpus. Professor and programme director Miranda van Eck and student assessor…

Swarms of drones, pedestrians or the cells in your body. Those are all examples of active matter: materials whose building blocks can move autonomously. That’s what Luca Giomi studies. Giomi has been appointed Professor of theoretical physics in the area of soft matter and biological physics at the…

Three of our researchers have been awarded a certificate for receiving enough downloads to be in the top 10% of papers in 2022

Since the beginning of September, urban criminologist Marianne Franken has been the linchpin of a special partnership between Leiden University, the municipality of Leiden and the police. As a PhD candidate she will spend four years conducting research into how safe the people of Leiden feel.

Join the 2025 Legal Tech Challenge and collaborate with fellow students to design an innovative app that makes legal services more accessible. Gain practical experience, tackle real-world legal challenges and compete for an amazing prize!

Recently, archaeologist Dr Wei Chu received a grant from the Gerda Henkel Stiftung for an excavation in the Carpathian Mountains. Originally planning for an excavation in Ukraine, his plans were disrupted by the war. ‘We had to change plans really quickly.’

Using mathematics to determine whether scientific results are significant or not. Peter Grünwald, full professor of Statistical Learning at the Mathematical Institute (MI) and senior researcher in the Machine Learning group of Centrum Wiskunde & Informatica (CWI), has been awarded an ERC Advanced Grant…

University lecturer in Management & Organisation Sarita Koendjbiharie is a welcome lecturer on The Hague campus, and not only because she takes a genuine interest in her students. In fact, Koendjbiharie brings her dog Coco to campus whenever she can.

Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…

From historical understandings to new treatments: during the Public Day of the Leiden Institute for Brain & Cognition, curious visitors learned how rapidly research into brain disorders is evolving. ‘I found the neurosurgery and the research on organoids on chips particularly fascinating.’

Mosques with limited opening hours, fewer family visits and fewer events: for the second time, Ramadan was different due to Covid. Islamologist and deputy director of the Leiden Islam Academie Fatiha Azzarhouni looks back on a special month.

With a trip through the Netherlands, the preparations for the graduation of the Master Cyber Security had already started weeks ago. The apotheosis took place on Thursday, the 11th of February. A report of a digital graduation ceremony.

Would you like to take a walk with a fellow student who you don’t know? That is the idea behind Walk & Talk. With this new initiative, International Studies aims to provide more opportunities for social contact.

Optimised antibiotic combinations can combat bacteria more effectively while also slowing the development of resistance. Scientists from five European countries are joining forces to identify such combinations and provide tools for others to do the same. The project is led by Professor Coen van Hasselt…

Getting up at 5 AM, strolling through rain and looking at a dirty diaper: students of the Honours College Archaeology endured it all. For their class ‘Future cities, urban pasts’ they mapped the city of Leiden in various forms. ‘This honours track demonstrates how we can take archaeology a step furt…

Hoping to learn something about the human brain, Leiden researchers are creating a setup to shoot single photons, particles of light, into someone’s eye. ‘The eye is a passageway to the brain.’

The Erasmus+ Blended Intensive Programme (BIP) is a short and intensive mobility programme funded by the European Union, that combines online learning with a short trip for in-person teaching.

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

Suddenly there they were, the Russian soldiers near the border of Ukraine. Since then, reports of tensions between Russia on the one hand and the United States and Europe on the other have dominated the news. What is going on? An interview with Russia expert André Gerrits.

Do you recall all those drugs that were hastily proposed as potential treatments for COVID-19? In the event of a future pandemic, the goal is to offer an effective treatment more quickly and efficiently. To achieve this, a team led by Coen van Hasselt is developing a platform that can speed up the process…

In a well-filled Telders Auditorium, university learners of Korean competed with each other to see who speaks Korean the best.

On Thursday 10 November, the Night of the Lobbyist was held. During this public event, organised by Leiden University and the Public Affairs Academy, many insights were shared regarding the different aspects of lobbying and the diversity of the world of the lobby.

Nearly all students have faced many challenges this academic year. Students Nasreen Javanjoo (Religious Studies) and Marcos Cordova (Literary Studies) talk about their experiences of studying in the time of coronavirus.