ASTRON en de Universiteit Leiden beginnen samen een nieuwe leerstoel over sterrenkunde en AI. Bijzonder hoogleraar Joeri van Leeuwen gaat deze positie vullen.

Leiden University Proudly Announces Dr. Mikiko Otani as the Rotating Honorary Chair Enforcement of Children's Rights 2023/2024

Two Cleveringa books from Theo ten Kate's law library were donated to Leiden University by grandson Sebastiaan ten Kate on 24 November. They are the dissertations of W. Hugenholtz and J.G.L Röder, both PhD students of Rudolph Cleveringa. Ten Kate: 'The University is the right place for the books. Here,…

On Sunday, November 9 2025, Prof. dr. Sarah Cramsey presented a film at the “Eastern Neighbors” Film Festival in The Hague.

We have just had an evacuation in the Pieter de la Court building, fortunately because of a false alarm. We would like to thank everyone and especially our Emergency Response Team colleagues for cooperating in a smooth evacuation.

An important question being asked, both in the academic world and in society, concerns the impact of our research and education. By providing a well-supported answer, we not only create a strong position for our research, we also increase our chances of success in applying for research grants and retaining…

An important question being asked, both in the academic world and in society, concerns the impact of our research and education. By providing a well-supported answer, we not only create a strong position for our research, we also increase our chances of success in applying for research grants and retaining…

If you have a question about the transition from SAP to BAS InSite, take a look at the list below to see if it’s included there.

Documenting and preserving rock art in the Pakistani Himalayas; this was the aim of the ‘Karakorum Rescue Project’ to which students at the Honours College Archaeology contributed. A Leiden exhibition visualises the project: ‘There is something magical about it.’

The university is launching a campaign to focus extra attention on our smoke-free university locations. The University is using aptly named cigarette barrels to try to show clearly just how many cigarette filters are being saved from the environment. How harmful are these cigarette filters to the e…

The person who cried out at Dam Square on Remembrance Day in 2010. For Michiel van der Wolf this marked the rise of a new phenomenon: that of ‘confused people’. Because since that Remembrance Day, the number of reports of ‘confused people’ in the Netherlands has increased rapidly in the statistics.…

Microorganisms that temporarily ‘go to sleep’ play an important role in the evolution and survival of a population. Mathematician Shubhamoy Nandan conducted research on the effect of this characteristic called ‘dormancy’ in a novel mathematical model.

Recently Professor Joanita Vroom’s book Feeding the Byzantine City was published by the prominent academic publishing house Brepols. This volume is the fifth in a series called Medieval and Post-Medieval Mediterranean Archaeology, of which she is the editor. ‘This series aims to offer new perspectives…

It is becoming increasingly common to collect data from children and young people through digital means. The impact of this so-called ‘dataveillance’ on children, who are monitored from birth via smartphones and Fitbits, is great.

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

What started with an old Soviet camera and a darkroom in London grew into a lifelong passion. Developmental biologist Michael Richardson has been capturing nature - from wild coastal plants to microscopic details in the lab - since his childhood.

Astronomer Joseph Callingham and his team have observed for the first time a clear signal from a giant burst from a star outside our solar system. This would have a devastating impact on any unfortunate planet orbiting the star.

How do you fulfill a chairing position during a team meeting? How do you visualise a dataset for a presentation? How do you write the introduction to a scientific article? All Science students can find the answers to these and many more questions in the 100+ skill modules on the digital Science Skills…

Different groups can have different memories of the same historical event. This can lead to conflict but does not have to. How is this, and how can countries and people reconcile with the past?

Kunnen algoritmen een hulpmiddel zijn voor advocaten en hun cliënten wanneer ze onderhandelen over contracten? In het preventief recht is dit zeker mogelijk, zo toont het promotieonderzoek van Georgios Stathis. Geleidelijk neemt het algoritme hier juridisch werk uit handen.

Do you know a children's book fanatic? According to the Griffel-jury, 'Rekenen voor je Leven' (Calculating for your life) by Science Communication Professor Ionica Smeets is highly recommended. The book was awarded a silver ‘Griffel’, one of the highest awards for Dutch children’s literature. And that…

Ambroise Paré, Thomas Sydenham and Herman Boerhaave: all were great medical innovators in their time. We know far less about the 19th-century Russian physician and scientist Nikolay Ivanovich Pirogov. PhD candidate Inge Hendriks researched him in Dutch and Russian archives and collections. She discovered…

A special find has been made in the Alkmaar Regional Archive: a number of 17th-century book bindings contained pieces of parchment from a manuscript from the 11th century. The original manuscript may have belonged to a princess who fled England after the Norman Conquest.

The programme committees at Leiden Law School play an important role in staff and student participation. What are the activities of such commitee?

On Tuesday November 25, 2025, Sarah Cramsey travelled with students from her masters seminar on 'New Approached to the Holocaust in Central and Eastern Europe' taught at the History Institute to Amsterdam for a unique opportunity. There, Lotte Sophie Groenendijk, an alumna of the History Research Masters…

On Tuesday November 25, 2025, Prof. dr. Sarah Cramsey traveled with students from her masters seminar on “New Approached to the Holocaust in Central and Eastern Europe” taught at the History Institute to Amsterdam for a unique opportunity. There, Ms. Lotte Sophie Groenendijk, an alum of the History…

Marlon Titre (1982) studied at Royal Conservatoire The Hague, did his PhD and studied at Leiden University, earned several other qualifications and is now, among others, Director of Filmhuis The Hague. Who is this multi-talent?

What looked like an ordinary coot’s nest turned out to be a five-star location with a remarkable backstory. Beneath a jetty on the Rokin in Amsterdam, biologist Auke-Florian Hiemstra discovered a true time capsule — complete with face masks from the COVID era and a Mars wrapper dating back to the 1994…

A growing number of AI tools are being developed for the legal sector, to help professionals search lengthy texts or check court rulings. Leiden SAILS researcher Masha Medvedeva, an expert on the technical development of these systems, warns: ‘Users should know what’s under the hood.’

Grabovski spoke in various media on the occasion of Holocaust Remembrance Day on 27 January 2022.

PhD candidate Ludwig Hoffmann will spend two years at Harvard University in the US thanks to a Rubicon grant he won on April 11. Using theoretical models he studies biological tissues, for example during morphogenesis. This is the process that causes tissue or organisms to develop their shape. ‘This…

On Tuesday 6 September, the faculty year 2022-2023 got off to a great start with Leiden Law Op 1, our yearly talkshow live from the Kamerlingh Onnes Gebouw. Together with the Faculty Board, academic staff and students, we looked ahead to the upcoming academic year.

If the Netherlands wants to change its reputation as a tax haven, it must do more according to Professor of Tax Law Jan van de Streek on American news site Bloomberg.

The legal distinction between victims of human trafficking and victims of migrant smuggling is unjust, argues De Massol Rebetz in her PhD thesis. In certain instances, smuggled migrants should be treated the same as victims of human trafficking.

When a child is placed in care, the assumption is always that the child can return home again. But there are still many questions about how this process – the 'permanency plan' – is arranged. New research aims to provide insights.

Paul Behrens and his team have won the Frontiers Planet Prize of half a million euros for their research into the effects of switching to a plant-based diet.

What started as an idea during a social gathering led to an unexpected breakthrough in research on resistant bacteria. Biologists and chemists from Leiden developed a new substance that proves to be effective against bacteria resistant to antibiotics. They published their discovery in Nature Chemist…

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

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…

With the introduction of PLAN in education, the Institute of Psychology is taking an important step forward. The complex project has been carefully executed and the system fully set up. It offers teachers advantages such as ease of use and transparency. Zsuzsika Sjoerds did a pilot and tested it.

Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain.

Many students dream of running their own business. But where to start? The Master Honours Challenge ‘Entrepreneurship’ helps students figure things out. ‘Now I can actually go for it.’

With her background in Cultural Anthropology and Development Sociology, Leonie Siepmans brings a unique perspective to the corporate world. Find out what an anthropologist does in a big company.