In May and June of 2021, Bachelor 1 and 2 students of the Faculty of Archaeology joined in the excavation at Oss. After the fieldwork itself, a second post-excavations week started in Leiden where each of them participated in small groups conducting archaeological find processing and working on creative…

In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…

How do you move 3,000 fragile clay tablets that date back thousands of years? This was the challenge faced by staff from the Netherlands Institute for the Near East (NINO). After years of preparation, the Liagre Böhl collection has been moved on trolleys to its new home.

Dubai is teeming with world leaders these days at the United Nations' annual climate conference. What can we expect? We look ahead with university lecturer and environmental politics specialist Shiming Yang. 'The funding always comes slowly.'

Just imagine new AI technology is able to read human emotions flawlessly. How would that affect us as humans? That is the question PhD candidate Alexandra Prégent is exploring.

And the construction has started! Students of the Leiden Science study associations ceremoniously hammered down the first poles of the new Gorlaeus on Tuesday morning. By doing so, they initiated the second phase of the construction of the second part of the new building.

Recent studies have shown that Dutch secondary school pupils experience a great deal of stress from school work, and between 2001 and 2007 the number of adolescents experiencing school stress even doubled. The study carried out by Simone Vogelaar focuses on stress factors and the effectiveness of the…

Nationalism is so prevalent in our society that we hardly realise it once didn’t exist. In his new book, senior university lecturer Eric Storm reveals the global history of the phenomenon. ‘Nationalist movements have always influenced each other.’

A huge shiny aluminium object stands in the middle of the Polderlab in Oud Ade. Are the researchers trying to make contact with extraterrestrial life? Certainly not; they are using the ’Moon landers’ to measure whether innovative forms of agriculture reduce greenhouse gas emissions. Fleur van Duin works…

What do you get when you bring a percussionist and a trumpet player together in a project orchestra? A story full of passion, unique experiences and a healthy dose of enthusiasm. We spoke with Tommy and Jeroen, both staff members at ISGA, about their participation in the Leiden Canal Concert on Sunday…

Alumnus Nick Hortensius started volunteering at the Leiden International Film Festival (LIFF) in his student days. He has since grown with the festival to become head of programming. How does he look back on his student days? And what can we expect from the festival this year?

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…

Taking a Bachelor’s in Security Studies while starting and running two businesses: student Mohamed Sulaiman never stops. But he wouldn’t have it any other way. PLNT The Hague entrepreneurs’ hub is a source of help and inspiration.

Two organisers at heart. In the background, facilities managers Nick van Asperen and Kees Schoonwater ensure that staff and students have everything they need to work and study well. Recently, the familiar faces started doing so in a new role. Schoonwater is now project manager housing and Van Asperen…

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…

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.

Starting as an MP during the Covid-19 pandemic and after the recent ‘role elsewhere’ debacle during the coalition talks for a new Dutch government, alumna Mariëlle is looking forward to making a real contribution in society.

How can I align science, society and myself to address today’s major challenges? That’s what students of the Honours College track ‘Science, Society and Self’ aim to find out. How do their classes at honours differ from their regular education?

Master student Encyclopedie en filosofie van het recht Marlotte Roldaan vertrok in januari 2024 voor vijf maanden naar de Verenigde Staten om daar in San Francisco te gaan studeren. Haar advies voor mensen die twijfelen: ‘Gooi jezelf in het diepe’.

The first results of the National Student Survey (Nationale Studenten Enquête: NSE) reveal that students at Leiden University are satisfied with their study programme.

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.

After nearly two years of retirement, Wil Roebroeks looks back on a career that began in a time of freedom and ended in a field that has undergone profound academic and social change. ‘I have been fortunate to always enjoy my work,’ he says. ‘That is also my advice to younger generations: above all,…

Almost a thousand students started HOPweek in The Hague on Monday morning. During this introduction week students get to know the city, the university and each other.

Interview with Pieter Slaman who received the LUS Education Prize. What makes the award so special to him and does he already know how he will use his prize money?

Workshop

Conference

At one time, the railway from Kimberley to Kambove in Southern Africa symbolised prosperity and progress. Today, the exhausted mining towns along its route are marked by decay and pollution. Professor Jan-Bart Gewald has been awarded an NWO L grant to investigate the long-term global consequences.

Symposium

Festival, We are Science week

Alumni event, Lezing

In the Pioneers of Leiden University series we talk to past and present students who were the first in their families to go to university. In this third instalment we talk to Jos Schaeken (1962) dean of the Honours Academy and Professor of Slavic and Baltic languages and Cultural History: 'I had to…

Course

The one-day symposium ‘War in Europe: the impact of Russian aggression in Ukraine two years on’ on 23 February 2024

From assistance in the event of natural disasters to peace-keeping missions. As a communication adviser, Leonoor van Poelgeest goes to all those destinations where the Royal Navy are active. Why did she choose this work and how has her Public Administration study helped her?

On 8 March, International Women’s Day, equal opportunities for women worldwide, empowerment, and gender equality take centre stage. For years, the role of women in the past has been nearly invisible. Four archaeologists reflect on this inequality of focus, from hunter-gatherers in the palaeolithic to…

During the spring of 2021, a group of eight biology students from Leiden set out into the dunes in search of amphibians. Using DNA, they determined the geographic origin of the animals. And guess what? In many cases they discovered exotic populations of animals that do not naturally belong in The Netherlands.…

CML grants three Stans Awards each year, known as 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.dr.ing. Jan Willem Erisman and Prof.dr.ir Willie Peijnenburg made the final decision.

There is a real chance of war closer to home, political and military leaders in Europe have warned. What does Frans Osinga, Professor of War Studies, think about the threat and what we should do?

Annetje Ottow is stepping down as President of Leiden University’s Executive Board on 1 September 2025 after almost five years in the role. She looks back at the highs and lows – and ahead to what’s next.

Researchers using NASA’s James Webb Space Telescope may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth. This is the best evidence to date for the existence of any rocky planet atmosphere outside our solar system.

Jonathan Powell came to Leiden from England to conduct research into the role of women in early modern court cases. In addition to all kinds of exciting documents, he also discovered the biscuits from the Water & Bloem bakery and the wild flowers at the Groenesteeg cemetery.

‘The climate crisis is the greatest threat we face,’ says Leiden University environmental scientist Paul Behrens. ‘And yet, there is hope. In the near future, I think we will wonder why we didn’t make these changes earlier.’

Researchers at the Universities of Amsterdam (Uva) and Leiden together with the Netherlands Cancer Institute and Oncode Institute have received a €10,6 million ERC Synergy Grant to develop innovative therapeutic approaches to target glioblastoma. This is a deadly primary brain tumour for which no curing…

Stack two layers of graphene, twisted at slightly different angles to each other, and the material spontaneously becomes a superconductor. Science still can't explain how something so magical can happen, but physicists use special equipment to reveal what is taking place under the surface.

Should we ban snack bars from neighbourhoods where residents are overweight or have diabetes? At the Common Sense about Health knowledge festival, scientists, civil servants and other professionals discussed how South Holland can become healthier. The Healthy Society Map makes it clear where there are…