Koen Keijzer combined three mathematical models into one unified system capable of making meaningful predictions about how cells form blood vessels. This helps biologists studying the chaotic, leaky blood vessels found in and around tumours.

Jasper Knoester is the dean of the Faculty of Science. Normally Jasper looks back on a day in his life, but in the last newsletter of the year he does it a little differently....

What if I completely changed everything? A subject without lectures or exams, where the right answer is not important and where students work with their hands. With this idea, Michiel Brentjens reformed the course Radioastronomy. His students are so enthusiastic about this approach that they nominated…

On a busy day, Sander Snel sees three hundred people at his coffee counter in the Herta Mohr building. ‘It's fun to remember everyone's favourite drink.’

As an employee, the Faculty of Law at Leiden University also allows you to go on an exchange. Read here how Esther Kentin experienced this and where to find more information.

Leiden University is switching to a new system for HR, finance and purchasing on 1 January 2026, after 27 years of using SAP. We spoke to Wouter Peters, Director of ASSC and Programme Director of BAS, about what this means for the university and you as a member of staff.

Five Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to two million euros will enable them to continue and expand their scientific research.

Physicist Sense Jan van der Molen researches materials that do not exist in nature. ‘It’s fascinating to see how the properties of a material change if we manage to make it super thin.’ He will give his inaugural lecture on 21 October.

Thirteen teams of inventive staff rose to the challenge of creating brand-new AI applications to lighten their workload during the AI Cocreation Lab. At the closing ceremony in the Academy Building, participants showed their pitch films, and an expert jury announced the winning prototypes.

Governments and public sector organisations consider evidence-based or evidence-informed policymaking as one of the pillars of good governance. That is to say: policies that are informed by scientific knowledge, expertise and evidence. In the research programme 'Power of Evidence', Valérie Pattyn and…

Julie Külsen is the student member on the Faculty Board, called the assessor, this academic year at Leiden Law School. Who is Julie and what does the assessor actually do? How can she help students? Let’s meet our new assessor!

Black-and-white photographs filled with solemn young men and distinguished professors line the walls of the Grand Auditorium. Young women are missing from the photos; women rarely obtained PhDs 50 years ago. And this article is about that group, the PhD candidates between 1966 and 1972, who were invited…

Aya Ezawa bade farewell as Diversity Officer of Leiden University at a celebration in the Academy Building on 11 June. Since her appointment in 2019, she has been a tireless advocate for culture change and a champion for diversity, inclusion and equal opportunities for all.

Anthropologist Marit Brun captured Leiden’s student life during her studies, which won her the ‘Best Leiden photo’ competition. She now wants to continue with photography and making travel guides with a nod to anthropology.

As a twelve-year-old girl, Nicky van de Beek became intrigued by the tomb chapels in Saqqara, Egypt. Now she is doing her PhD on them, just like another Leiden Egyptologist decades earlier. Herta Mohr persevered with her research during World War II. Now she is the namesake of the first Leiden building…

Researchers at LUMC have made a breakthrough in understanding PALB2 mutations, an important cause of hereditary breast cancer.

Physicist Remko Fermin from Leiden University was awarded a Rubicon grant from NWO. He will use it to study superconducting diodes that could contribute to reducing the CO2 emission of data centres.

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

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.’

‘By cleverly combining new techniques for analysing DNA at the level of individual molecules, we can achieve real breakthroughs in research into conditions such as dementia,’ predicts Professor John van Noort. Together with four leading biophysics research groups, he has written a review article in…

How do biological cells join forces to form a structure? In her PhD research, Daphne Nesenberend uses mathematics to show how forces and cooperation between cells create structure – and how simulations and experiments can reinforce each other.

How can universities and research institutions, businesses and government bodies in the Leiden region drive ‘broad prosperity’?

Jasper Knoester is the dean of the Faculty of Science at Leiden University. 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.

In a fiery Annie Romein-Verschoor lecture, Sylvana Simons opened up about her experiences as a woman in politics. The leader of the BIJ1 party is regularly the subject of belittling comments and threats. Writer Aafke Romeijn, who reflected on the Simons’ lecture, has also been threatened frequently…

He came to the Netherlands for three months and never left. Marcello Bonsangue is the new scientific director of the Leiden Institute of Advanced Computer Science (LIACS) since January this year. 'I think it is important to be there for the people of our institute. My door is always open.'

An international team of astronomers led by Ardjan Sturm of the Observatory has made the first two-dimensional inventory of ice in a planet-forming disk of dust and gas surrounding a young star. The researches, including Melissa McClure, used the James Webb Space Telescope and publish their findings…

In this ‘Educatips’ column, Psychology lecturers share their most important lessons about teaching. This month: Zsuzsika Sjoerds and Sebo Uithol teach students critical thinking with their app 'Family Dinner'. With success: 'The old exams have become too easy.'

‘I'm setting Academia in Motion by promoting transparent and rigorous research practices and by advocating for more interaction between science and society.’ With these words, Ludo Waltman, Open Science Ambassador for Academia in Motion, highlights how he is contributing to the culture change towards…

Anti-immigration protests over asylum seekers receive extensive attention, but PhD candidate Clare Fenwick says it’s a vocal minority taking to the streets. 'The silent majority might also have migration concerns, like job losses due to labour migration, but these views seem to remain outside public…

A psychology degree, a career that started in the commercial sector and now a role where she feels she can make a difference. For alumnus Marisse van Os (34) everything has come together in her current job at an innovative mental health services provider.

On March 13, Dr. Erik Deul passed away at the age of 67. He leaves behind his wife Wilma, children Caroline and Wouter, and grandchildren Joris, Stach, Viggo, Archie and and a granddaughter expected later this year. Erik served as head of ICT at Leiden Observatory for 35 years, and later also at the…

How do colonialism and historical slavery continue to impact the university today? And what should happen next? Students and staff discussed these questions on 11 March.

Leiden researchers have discovered a surprising new way to shape and control tiny droplets of molecules found in living organisms. The breakthrough could lead to smarter biomaterials, improve drug delivery and even new insights into the emergence of life on Earth. The work was published in Nature Co…

How do you detect life on a planet light years away? During her PhD research, astronomer Willeke Mulder worked on an instrument to detect such signals – culminating in an experiment from a hot air balloon.

The Iran war has pushed up fuel prices and raised concerns about a global energy shortage. How well prepared is the Netherlands? We asked two experts.

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.

What if you could watch a single cell eat in real time? This could answer questions about diseases such as cancer. PhD candidate Yixuan Wang has developed a glowing chemical tool that makes this possible, revealing how living cells take in nutrients.

Julius van der Poel recently joined the Institute for History as a PhD candidate part of Judith Pollmann’s Spinoza Project. Below he introduces herself.

What started with a huge sheet of paper from the V&D shop grew into one of the larger men’s sub associations at Quintus. Professor Gerard van Westen looks back on his student days with a smile: they gave him far more than just drinks and late nights.

Every year, Leiden University hosts the Annie Romein-Verschoor Lecture to mark International Women’s Day. This year, historian Nadia Bouras will speak about academic freedom, class and being a woman in academia. And that is just as relevant to men, says lecturer and organiser Looi van Kessel.

Quantum technology has the potential to transform society. But how can you effectively inform the public about such complex and enigmatic science and technology? PhD candidate Aletta Meinsma explored this.

At the end of March, the Voice of the Child conference launched three films on children’s hearings in European family law courts to support judicial training in child-friendly justice. Researchers from Leiden University have developed a training manual to accompany courses in the EU.

What do bats do at night when they’re not hunting? Using tiny GPS trackers, Leiden researchers discovered that pond bats spend a substantial portion of the night resting – often outdoors. This surprising insight could change the way we protect them.

While the Netherlands was in lockdown because of the coronavirus, PhD candidate Koen Rijpkema began his research into the same virus. In the lab, he developed molecules that can inhibit an important viral enzyme.

The new Humanities Hub in the Huizinga Building was officially opened on Tuesday 3 December. In the different labs, researchers presented the options for using digital technologies in humanities research.

CML grants three Stans Awards each year, for the best student thesis, best PhD paper, and best outreach from the past year. The CML staff nominated students and colleagues and this year’s jury Prof. Martina Vijver & Prof. Willie Peijnenburg made the final decision.

With the introduction of the House of Cyber the Dutch government seeks to address a long standing concern among politicians, policymakers, and cybersecurity experts: the fragmentation of the Dutch cybersecurity governance landscape. A proposed solution is not only timely, but very understandable.

Starting in September 2026, Leiden University in The Hague will begin establishing a new Knowledge Centre for Kingdom Relations. In addition to bringing together researchers and developing education on Kingdom relations, the goal is to contribute to the public debate and foster greater mutual understanding…

POPcorner The Hague has become a familiar and trusted space at Leiden University in The Hague. It’s where students meet, find support and work together to build an open and approachable student community.

How can we slow the progression of atherosclerosis? Researcher Amanda Foks believes the answer may be switching off ageing immune cells. This could lead to an entirely new treatment for heart attacks and strokes. She has been awarded an Established Investigator Dekker Grant by the Dutch Heart Founda…