Collaborating in drug discovery and health research was the goal of a visit to the Leiden Bio Science Park on 14 May by a Swedish delegation including His Majesty King Carl XVI Gustav of Sweden. The delegation visited Leiden University’s Faculty of Science.

Using mathematics to help children with bone cancer. It sounds a little strange, but for statistician Marta Fiocco, it's just her job. She gets a substantial grant from KiKa for it. With that money, she is going to study the effect of chemotherapy adjustments.

More CO2 in the atmosphere is making food crops more calorific, less nutritious and potentially more toxic.

The Royal Holland Society of Sciences and Humanities (KHMW) has appointed four Leiden professors as members. Petra Sijpesteijn, Vanessa Mak, Mariska Kret and Miranda van Eck have recently joined the KHMW.

Conference

Tuberculosis stands as one of the most lethal infectious diseases worldwide. A significant challenge in combatting tuberculosis lies in the emergence of antibiotic resistance triggered by genetic alterations, commonly known as mutations. These mutations can diminish the responsiveness to antibiotics,…

Imagine getting a notification on your mobile phone with your personal code for impending mental health problems or even depression: yellow, orange, or red. Science fiction? Not for scientist Eiko Fried. 'There is a real chance we can prevent some mental health problems before they occur.' Want to participate…

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On Tuesday 30 September 2025, PhD candidate Kathleen Brown will defend her dissertation 'Deception, Risk, and Evasion: The Politics of Sovereign Debt in Emerging Markets' in Leiden’s Academy Building. Her research sheds light on the hidden world of sovereign debt politics, revealing how governments…

The latest book by political scientist Matthew Longo came out this spring: 'The Picnic: A Dream of Freedom and the Collapse of the Iron Curtain'. In addition to its many favourable reviews, the book received the prestigious Orwell Prize this summer, which highlights exceptional books on politics.

Conference

After months of preparation, the moment of truth had arrived: would the skies above Leiden clear for the promised glitzy planet-and-star show? The people of Leiden turned out in their hundreds to go star-hunting on 25 September. They became more aware than ever of the effects of light pollution.

Seminar

An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

Leiden University's International Honours College, Leiden University College The Hague (LUC) experienced empty halls and empty classrooms this past year on the residential campus on the Anna van Buerenplein in The Hague due to the global pandemic. Dr Paul Hudson designed a Covid-proof course that enabled…

On 24 April 2025, political scientist Pawan Kumar Sen will defend his PhD dissertation, "Transforming Nepal’s Political System: Party Positions and Public Opinion (2004-2012)," at Leiden University. His research examines how Nepal’s major political parties navigated key state restructuring reforms—republicanism,…

'Academics who share their knowledge with the outside world on social media are often insulted or even threatened. Especially female academics and academics of colour seem to regularly be the victim of sexist and racist comments.' This is what Ineke Sluiter, Professor of Greek Language and Literature…

Conference

Seminar

A job thanks to COVID—something not many people can claim. But PhD candidate Vera Arntzen can. Over the past four years, she has mapped two crucial characteristics of SARS-CoV-2 infections. Thanks to her research, experts can now make well-informed decisions on matters like quarantine duration, which…

Professor of Islam and the West Maurits Berger wants to use citizen science to answer this question. On the futureofislam.eu website, he is inviting European Muslims to complete an anonymous survey about how they see their future and the role of Islam in this. He will present the first findings at the…

The image of the European Union (EU) as a remote law-making machine is widespread. Quite often journalists and politicians deliberately depict ‘Brussels’ as bureaucratic, even undemocratic, bypassing its citizens. And many of us buy into that image. Nikoleta Yordanova, Anastasia Ershova and Aleksandra…

In his new book 'Flooding and Management of Large Fluvial Lowlands', Paul Hudson Associate Professor of Physical Geography at Leiden University College in The Hague, examines human impacts on lowlands rivers. The past twenty years the pressure on large fluvial lowlands has increased tremendously because…

Political scientist Claire Vergerio (Leiden University) has made it to the final stage of the selection process for Central European University’s annual European Award for Excellence in Teaching in the Social Sciences and Humanities. As the 2019 Casimir Prize winner, Vergerio was nominated by the Faculty…

Conference, Workshop

Wouter Veenendaal, a political scientist at Leiden University, is an analyst for the Freedom House report. Freedom House is an American non-profit organisation dedicated to democracy, political freedom and human rights. In short, the report describes the degree of freedom and the state of democracy…

Infecting each other with viruses and bacteria while protecting yourself with medicines and vaccinations. Sounds like a fun evening, right? Master students Life Science & Technology Rafael Jezior and Dennis de Beeld certainly think so. Together, they developed ImmunoWars: an exciting card game based…

On 31 January 2024, Alex Schilin defended his dissertation ‘United in Distinctiveness: The Institutionalisation of Differentiated Integration in Economic and Monetary Union during the Sovereign Debt Crisis.’ What motivated him to research this specific topic, and how did he tackle this project? And…

Protostars, data science, and the James Webb Space Telescope—Adriaan Janssen’s curiosity knows no bounds. As a double bachelor’s student in Physics and Astronomy, he has truly found his calling, underscored by his nomination for the title of Leiden Science Young Talent 2024.

We have the pleasure of hosting organisational psychologist Fieke Harinck. Fieke is an expert on negotiation, communication skills and improvisation and co-author of the book ‘The Art of Presenting’. She shares invaluable insights and advice on how to deliver impactful presentations that captivate your…

Distracted eating is common and has adverse health consequences. Read more about the research of Leiden social psychologist Lotte van Dillen and some strategies to combat that behavior.

Can a robot perform a religious ritual just like a monk? And what exactly is a religious ritual? Robots and religion seem to be two different subjects, but according to university lecturer Elpine de Boer, both can make us think about what it means to be human and what we consider to be of value. Together…

How safe are the nanoparticles in transparent sunscreen, anti-odour socks and bacteria-resistant plasters? Although microbes are present on all organisms, the tools that estimate the safety of nanomaterials still hardly take them into account. Bregje Brinkmann explored the role of these microbes during…

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

The rise of authoritarianism, the strengthening of the radical right, and the role of the EU in defending democracy—these are just a few of the issues causing concern today. Is the EU capable of defending democratic values within the Union and beyond its borders? In an interview from the Lithuanian…

Leiden University is seeking bids from developers for housing in Nieuw Rhijngeest-Zuid, the Oegstgeest part of the Leiden Bio Science Park.

Bullying, abuse or a difficult divorce: many young people struggle with mental health problems after traumatic experiences. But why do some suffer much more than others? This is the question that Hannah Dorsman is exploring within the THRIVE project.

Thomas Moerland studied medicine and mathematics in Leiden and has a lifelong fascination with the origins and workings of intelligence. He brought all that together in his popular science book Van IQ naar AI (From IQ to AI).

On 16 May, three researchers from Leiden University will present their findings on the democratic consequences of decentralisation at a workshop in Leiden. Their research project, Downsize My Democracy?, shows that decentralisation does not automatically lead to a stronger democracy. On the contrary,…

Conference

Study support

Juan Masullo J., Assistant Professor at Leiden University’s Institute of Political Science, has been named a 2025 Harry Frank Guggenheim Distinguished Scholar. His research with Nicholas Barnes on public security policy preferences in Rio de Janeiro's favelas has been recognized for its innovative approach…

Lecture, LUCL Colloquium

Cancer research generates massive amounts of data, but traditional tools often fail to fully harness their potential. How can we unlock this data to provide better treatments for cancer patients? PhD candidate Marina Gorostiola González explored this by using advanced data analysis techniques to guide…

How do fats and enzymes in the brain contribute to multiple sclerosis? In his PhD research, Daan van der Vliet combined chemistry and neuroscience to gain new insights into how brain disorders develop.

Not experiments and lab coats, but computers and artificial intelligence: this year's Nobel Prize in Chemistry went to the inventors of the groundbreaking AI model, AlphaFold. This programme accurately predicts protein structures based on their genetic code—a crucial step in understanding biological…

Studying how single DNA molecules behave helps us to better understand genetic disorders and design better drugs. Until now however, examining DNA molecules one-by-one was a slow process. Biophysicists from Delft University of Technology and Leiden University developed a technique that speeds up screening…

Designing innovative algorithms, thinking outside the box, and brainstorming over coffee with his colleagues — this is what physicist Stefano Polla enjoys most. His success shines through in his nomination for the C.J. Kok Jury Award 2024 for PhD thesis of the Year.