Particularly during this time of social distancing and remote learning, it is important to carry on meeting new people – even if you don’t always feel like it after another day staring at your screen, says Wessel van Dam. In his role as assessor at the Honours Academy, Wessel represents the interests…

You win the Leiden Teaching Prize and suddenly all eyes are on you. Three past recipients reflect on how this student-awarded prize has changed how they work and improved their teaching – and how they chose to spend the money.

How do opinions form and change in large groups of people? That's not just a sociological question, it's a mathematical one. PhD candidate Federico Capannoli studied opinion dynamics. He defended his thesis on November 19.

‘If we all possessed just an ounce of Cleveringa, then all would be well in the world,’ said Professor Leo Lucassen. In the Cleveringa debate on the line between free speech and threatening speech he called for ‘more guts’. He is not the only one who thinks this is badly needed if the debate at the…

A microscope with incredible sharpness that leaves samples unharmed – Guido Stam helped develop one. During his PhD research, he combined light and electrons to study biological samples. ‘We can now measure things that simply weren’t possible before.’

Anna van ’t Veer is the face of Open Science Community Leiden (OSCL). She calls for an academic system that centres transparency. ‘Culture chance can only be achieved together.’

Leiden scientists lead COLIBRE, a groundbreaking set of cosmological simulations. By including key missing physics, cold gas and cosmic dust, they offer the most realistic picture yet of how galaxies formed and evolved since the dawn of time.

The programme for the interdisciplinary and transdisciplinary event The Knowledge Orchard has been announced. This anniversary event consists of more than 20 sessions aimed at providing you with practical next steps in your interdisciplinary and transdisciplinary work. Register now!

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

Well-being economist Rutger Hoekstra has been named as one of the 26 National Champions of the international Frontiers Planet Prize.

Are international courts effective? Dr Fatou Bensouda, a former Lead Prosecutor of the International Criminal Court in The Hague (ICC), will discuss this issue during her lecture at the Owada Symposium 2025. The ICC’s efficacy depends on the actions of its member states, she says.

Assistant professor Max van Duijn is the new chair of The Young Academy. He aims to support young academics, bring research closer to society and make academia more resilient.

Researchers from Leiden University, University of York, University of Barcelona/IQTCUB/ICREA and The Francis Crick Institute report a new class of experimental compounds that powerfully block influenza viruses. The findings offer a potential new strategy for treating flu infections and preparing for…

From spiders in the bathroom to mice in the kitchen, we share our homes with far more species than we realise (whether we like it or not). Researchers at Leiden University and the University of Helsinki are collecting stories about how people live alongside these non-human housemates.

Violence such as assault or head-butting causes pain, shock and distress. It is often seen as savage or senseless. But for those who commit it, violence has meaning, argues violence researcher Don Weenink in his inaugural lecture.

Astronomers in Leiden have used the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile to produce a new detailed image of the centre of our Milky Way. This allows them to investigate the life of stars in the most extreme region of our galaxy. The Leiden scientists, led by Katarzyna…

Good education starts with good educators. The university has taken various steps in recent years to help our teaching staff develop. But new teaching staff require particular attention, say staff who work on teacher professionalisation.

For 125 years, Leiden University and the Leiden Instrument Makers School (LiS) have worked together on science and technology. This partnership is more important than ever today, as demand for skilled high tech professionals is growing fast: by 2030, an additional 40,000 people will be needed.

Injections can be a source of stress and anxiety for children. The Willem-Alexander Children’s Hospital is exploring ways to improve the experience. Together with illusionist Victor Mids and researchers from Leiden, they have shown that magic can help.

Astronomers who simulate galaxies do not always get the same result, even when they start from identical conditions. New research from Leiden University shows that this is not a flaw, but a consequence of how galaxies behave — and how they are modelled.

Maryam Alqassab, an assistant professor at ICLON (Leiden University Graduate School of Teaching), helps train new PhD supervisors and knows how demanding the role can be. When asked to contribute to an online handbook for PhD supervisors, she didn’t hesitate: ‘Everything supervisors do or are involved…

From children’s birthday parties to international ambassadors, the Old Observatory attracts a wide range of visitors. Student coordinator Sanne van Beek connects visitors and students, ensuring everyone — from five to sixty-five — learns something about the stars.

Workshop

Conference

Lecture, Astronomy on Tap

Lecture, Astronomy on Tap

No procession of professors, just a handful of people in the church and snowdrifts outside Leiden’s Pieterskerk: 8 February 2021 was no ordinary Dies Natalis. Carel Stolker transferred the rectorate to Hester Bijl, and Annetje Ottow became the new President of the Executive Board. With an honorary doctorate…

Online discussion

Lecture, Astronomy on Tap

Lecture

Arts and culture

Arts and leisure, Arts and leisure

Conference

Didactics

Lecture

Lecture

Arts and culture

Seed Funding Launch Webinar

Staff Association

Staff Association

How do we offer students a helping hand without losing sight of our own well-being? This was the question that study advisers, lecturers, deans and student support staff tried to answer at the Staff Symposium on Student Well-being.

There are many tributaries to Rosalin Kuiper’s story and they all lead to the sea. The 28-year-old sailor was one of the five-person Team Malizia in the world’s most prestigious sailing competition: the Ocean Race.

The freedom to be who you are – woman, man, homosexual, heterosexual, transgender, religious, atheist, and so on – is perhaps the Netherlands’ greatest attribute. The principle of equality and the right not to be discriminated against are in the very first article of our constitution. Yet there is a…

On International Women's Day (8 March) we take time to consider female emancipation and participation. What does this day mean for Leiden University, and how does it tie in with our aim of becoming more diverse and inclusive? We talked about these issues with Annetje Ottow, who recently became the…

How can staff help create a healthy and inclusive learning environment? How do today’s students differ from previous generations? And what does this mean for how we guide and support them? These questions were the focus of the ‘Today’s Students’ symposium on 25 March.

An impressive speech by Dean Jasper Knoester, a lecture by top researcher Mario van der Stelt about brain messengers, and the presentation of the faculty awards. 2025 begins on a hopeful and festive note, with a toast to a year of fruitful collaboration within and beyond the faculty.

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…

The story of Tutankhamun, the Egyptian pharaoh, is world famous. But did you know that the Ancient Egyptians mummified not only people but animals too? The National Museum of Antiquities in Leiden recently put a bunch of animal mummies through a CT scanner. This was in collaboration with Canon Netherlands…

We’ve all heard the advice about healthy workplace habits: taking regular breaks from your screen, going for the odd walk or eating lunch with your colleagues. But we don’t always heed this advice. A paradox, says assistant professor Juriena de Vries. ‘When you think you don’t have time for a break…

Using enslaved people as servants, becoming an administrator in the Dutch West India Company or making uniforms for the colonial army. Many people from Leiden played a role in colonialism and slavery. Historians are conducting preliminary research and finding striking examples.