Researchers from the Netherlands Cancer Institute, the Leiden University Medical Center (LUMC) and Oncode have created a tracking system that can reveal how often cells have divided. This allowed them to find a yet undiscovered population of immune cells: young memory cells that behave like stem cells.…

Leiden astronomers and ecologists are developing an instrument that lets people measure the quality of surface water with a smartphone.This international citizen science project, MONOCLE, is a collaboration between scientists and local people in Tanzania, Brazil and four European countries.

Professor Pieter ter Keurs has spent his entire career studying collecting. Now, he is retiring. ‘I hope the focus on collections will carry on.’

Five Leiden research projects in history, law and AI have received SSH Open Competition M 2024 funding from the Dutch Research Council (NWO). The researchers have up to five years to work on a promising idea.

It is still unclear how the Neanderthals died out. For long, one theory seemed most likely: the emergence of the highly intelligent Homo sapiens, or modern humans. This competition hypothesis is no longer the dominant theory among scientists, research among archaeologists and anthropologists has shown.…

For his dissertation, Joost Akkermans searched for areas of improvement for delicate fetal laser surgery with Twin Transfusion Syndrome (TTS). This syndrome occurs in the Netherlands 60 to 70 times a year among single-egg twins sharing one placenta. Treatment is possible, but not without risk. Inaugural…

Today, ESA’s Gaia mission releases its new treasure trove of data about our home galaxy. Astronomers, led by the Leiden astronomer Anthony Brown, describe strange ‘starquakes’, stellar DNA, asymmetric motions and other fascinating insights in this most detailed Milky Way survey to date.

The European Union increasingly needs to respond to unforeseen events and developments. This is putting it to the test. What are the effects? Professor of Foundations and Practice of the European Union Luuk van Middelaar addressed this in his inaugural lecture on 23 September.

How can we use Population Health Management to help the citizens of The Hague get and stay healthier? This was the key question during the 5th Working Conference of LUMC-Campus The Hague on 15 January in The Hague. The issue was debated by more than 150 doctors, researchers, lecturers, healthcare professionals,…

Yousef Yousef (39), a successful entrepreneur in the water-quality industry, recently joined the Advisory Board at Leiden Law School. Read the interview about his career.

Researchers at Leiden University have created a unique model that mimics how disease develops after a dengue infection. This 'dengue-on-a-chip' model helps them study the virus more effectively. The timing is crucial, as climate change is causing dengue to spread worldwide.

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…

The Bachelor Honours Class 'Homo Ludens: Why We Play' combines games, theory, and practice. Students dive into all aspects of humanity in which games play a part and discuss them, both on a theoretical an experiential level: 'Occasionally, you touch upon what play is, but then it eludes you.'

For the Bachelor Honours Class 'Mass Extinction', students produced podcasts about the past, the present and the future of mass extinctions. What exactly is lost when a species goes extinct? What are the practical consequences? But also: does humanity have the moral duty to protect other species?

How can Europe lead the way in vaccine development that is fast and for all? To answer this pressing question, Professor of Vaccinology Meta Roestenberg is holding a panel session on 14 July at the EuroScience Open Forum in Leiden.

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.

Festival

Lecture, Workshop and Egeria Lecture

Lecture, NGL-lezing

Study information

An international team of astronomers has revealed the first 'chemical profile' of an exoplanet's atmosphere. The team, including Leiden astronomer Yamila Miguel and provenda Amy Louca, made the profile using so-called Early Release Science data from the James Webb Space Telescope. The results have been…

Kerstin Fischer and Angus Johnston were exchange students in Leiden in 1995. Sparks flew when they met at a Leiden International Student Club party, but then they lost touch. They met again 19 years later and the flame was rekindled. A Leiden love story – with a bit of a delay.

An extra-long procession with musical accompaniment will mark the beginning of the university’s 450th birthday celebrations on 7 February.

In traditional style, 2025 was ushered in at our faculty with the Meijers Lecture followed by the New Year's Reception. On Thursday 16 January 2025, the Meijers Lecture took place in the Lorentz Lecture Hall where the Meijers Prizes and the Van Wersch Springplank Prize were also awarded. At the New…

Her specialist field is molecular astrophysics, and she is the most quoted scholar in her field. In this, the year of astronomy, she is the ideal person to give the Dies lecture at the university with the world's oldest astronomy institute; it goes without saying that the lecture will be on the newest…

Having lectures on sustainability when you're a first-year student of Law, or a course on climate change when you're studying Public Administration may sound odd, but that is just what Associate Professor in Environmental Sciences Thijs Bosker wants to see happening. Together with his colleague Paul…

Lecture

Lecture, Comparative Indo-European Linguistics (CIEL) Seminars

The BLRN members have published extensively in recent years. In addition to the BLRN book series, dissertations of BLRN members published in the E.M. Meijers Institute Series, you will find below a selection of our publications. For a more complete overview of publications of each BLRN member, please…

113 Suicide Prevention gave a guest lecture about suicide prevention at the Spanish Steps in Wijnhaven

A cancer pill, preferably without severe side effects, is something we’d all welcome. Is it a matter of time before such a pill is a reality? We put this question to three Leiden researchers and asked how they themselves are contributing to new cancer treatments.

Adults who lost a parent during childhood tend to experience greater attachment anxiety in romantic relationships, according to Carline van Heijningen’s doctoral research. However, this anxiety was less pronounced among those who recall having a strong bond with their deceased parent during childhoo…

An interdisciplinary team of Leiden researchers has discovered that wasting syndrome, a severe byproduct of tuberculosis, is the same for all humans and animals studied. The discovery offers new opportunities to investigate the still insufficiently understood condition. The scientists also developed…

The research group of Eric Snijder, Professor of Molecular Virology (LUMC), has been conducting research on coronaviruses for decades. Then in March this year their work accelerated at an unprecedented rate. The first new results are now available: insight into how the virus replicates.

The nineteenth-century writer Nicolaas Beets and his son Dirk were thoroughly colonial, Nicholas without ever having been to the Dutch Indies, or any other colony for that matter. But they didn’t realise it. The new Scaliger Professor, Rick Honings, shows that writers’ archives are a treasure trove…

For centuries, astronomers have studied the universe by collecting light signals. Since 2015, the confirmation of an important prediction of Einstein allows us to explore the universe in a new way: through gravitational wave radiation. Astronomy PhD candidate Valeriya Korol proposes to use these gravitational…

As a professor, Natasha Appelman-Dijkstra understands better than anyone how important it is to recognise bone and mineral conditions at an early stage. She emphasises the importance of flexibility and collaboration for better care, groundbreaking research and strong education.

The Catholics were by no means pitiable victims over the two centuries that they had to practise their religion underground, Caroline Lenarduzzi writes in her PhD dissertation. They managed to keep their faith alive from the mid-sixteenth to the mid-eighteenth century. PhD defence 25 October.

The Leiden University Centre for Linguistics has been badly affected by the corona crisis: the research in the four labs and the fieldwork has come to a standstill. What are the implications?

Recently, archeologists of Leiden University made an excavation in Oegstgeest, where they found a unique silver bowl from the first half of the seventh century as well as imported pottery and winebarrels. Thijs Porck, lecturer in Old English language and culture at Leiden University, places the Oegstgeest…

In November of last year Global Interactions made offers to five out of nearly 90 applicants for our grant-writing postdocs. We are pleased to announce that all have accepted and will be joining various Leiden institutes this year. The five postdocs are Katia Hay, Johannes Müller, Maria-Paz Peirano,…

The proceeds of the Leiden University Science Run on 28 September will go to Scholars at Risk, a section of the UAF that assists refugee scholars. One such scholar is Leiden PhD candidate Lety Elvir Lazo from Honduras.

Burnout is on the increase. It is caused by group pressure, being ‘on’ all the time and asking too much of ourselves. Clinical psychologist Bart Verkuil advises lowering our expectations.

How designers are even more creative with a robot in their team, how Twitter could predict the stock market, and how to catch a single bacterium in the act of infecting a cell. Artificial intelligence has penetrated every corner of science in Zuid-Holland. Three researchers from Delft University of…

The genetic code of the new coronavirus has been found: it is closely related to the SARS virus from 2003. Professor of Molecular Virology, Eric Snijder, has been researching coronaviruses for years. We asked him a few questions about the outbreak. ‘It’s still unclear whether this new virus is more…

On this page you will find all information about the Bachelor of Security Studies that you need as a first-year student.

Conference