The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

Soft structures that can take on different shapes without any external drive. Leiden physicists Daniela Kraft and Julio Melio created them in their lab. They present their groundbreaking research on microscale metamaterials in Nature - a breakthrough that opens the door to smart, reconfigurable materials…

Researchers at the Faculty of Science work at the frontiers of knowledge every day, tackling today’s major societal challenges. Their work is recognised through grants, prizes and other awards. We highlight some of these achievements.

Marc Koper, Professor of Catalysis and surface chemistry, has been awarded the EuChemS Gold Medal 2026. The prize is awarded every two years and recognises outstanding achievements in the field of chemistry in Europe.

Jeroen Touwen officially joined the Campus The Hague Board on 28 November.

As of 1 May Gianne Derks is the new Scientific Director of the Mathematics Institute. Derks succeeds Hermen Jan Hupkes who temporarily assumed the role. Derks has been appointed for a period of four years.

Willem Jespers started his position as Assistant Professor in the group of Prof. G.J.P. van Westen on June 1st, a short introduction below:

Koenraad Schalm will be the new programme director of the Physics master starting 1 November. He has been appointed for a period of four years. Schalm succeeds Ana Achúcarro who has held the position since 2021.

After nearly five years as President of the Executive Board, Annetje Ottow will be stepping down from the role as of 1 September. During her time as President, she helped shape the university’s strategic direction, strengthening its regional, European and international profile. Sustainability, and dignity…

Organisation

Facility

Climate change affects our well-being in many ways. On the science platform The Conversation, Inge Schrijver, Paul Behrens and Rutger Hoekstra of the CML describe how this is hardly taken into account in the climate models on which global policy is based.

Festival

The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…

For many teachers, they are a lifesaver: the people at the Science Teacher Support Desk. When a teacher has technical problems, they come to the rescue immediately. Veerle Warnders is one of them and she tells us what is so great about her job.

At the start of 2025, the Faculty of Science (FWN) will take on their new roles as programme directors. Charlene Kalle, Thijs Bosker, and Maurijn van der Zee will each be responsible for one of the faculty's bachelor programmes. Their appointments are for a term of four years.

Leiden University’s President of the Executive Board, Professor Annetje Ottow, has been reappointed for a second term by the Board of Governors.

As of 1 April 2025, Lodewijk Govaerts will be standing down from the Board of Governors due to other commitments that will demand a significant part of his time and attention within the foreseeable future. Govaerts does not want this to affect his ability to fulfil his role on the Board of Governors…

Leiden University has taken 14th place in the UI Green Metric, a global sustainability ranking for universities.

Liveable Planet, the Leiden interdisciplinary research programme on sustainability, has a full presence at the LUGO Sustainability Day on Tuesday 9 May. Professor Jan Willem Erisman will deliver the keynote lecture. You can also ask questions about sustainability research and interdisciplinary collaboration…

Thanks to a €4.8 million grant from the Dutch Research Council, a consortium that includes four physicists from Leiden University will develop a national facility for atomic-scale research into novel materials. This initiative is expected to drive innovation for energy transition.

Organisation

On November 1, the LACDR Fall Symposium took place. After the symposium was opend by prof.dr. Hubertus Irth, the program started with a lecture called “Poly(2-oxazoline)s, structural chameleons in therapeutic delivery” given by key note speaker dr. Joachim van Guyse.

Leiden University has taken seventh place in the UI Green Metric, a global sustainability ranking for universities. Almost 1,000 universities from all over the world participate in the ranking.

Ivonne Koomen

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

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…

'In Leiden, I can continue on the path towards my dream: having my own pharmacy,' says Duaa Abbas. She studied pharmaceutics in Syria and worked in a pharmacy there for a year and a half. After having to flee the country, she ended up in the Netherlands. Thanks to the help of the Foundation for Refugee…

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…

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.

On 12 January ten driven lecturers obtained their Senior Teaching Qualification (SKO). Rector Magnificus Hester Bijl congratulated them in the Academy Building. We asked three of them how the SKO programme had benefitted them, what they think ‘good teaching’ is and what makes them so passionate about…

The James Webb Space Telescope continues to surprise us with stunning pictures, but of what exactly? Astronomer Nienke van der Marel shows with three images how massive stars lead short but explosive lives.

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.

Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cells membranes. This allows for selectivity and also reversibility: the binding can also be undone. Researchers first caught this phenomenon using spheres or colloids, and published…

Chris Suijker, since 1 July the new director of Real Estate, likes healthy and sustainable university buildings where you ‘get the feeling you’re right at the heart of society’. Her aim is to achieve the same effect with even more buildings.

Imparting students with a critical attitude and cross-curricular skills. That is what Rawi Ramautar wants to strive for as the new programme director (OD) of the bachelor of Bio-Pharmaceutical Sciences. 'A programme director has to create a programme of which students say: I find it challenging and…

Anti-litter activist Dirk Groot photographed, tagged, and collected more than 400,000 pieces of litter in the Netherlands. Now, he and his data are included in a study on urban litter by researchers from Leiden University and Andrea Ballatore from Birkbeck, University of London.

A consortium including economists, psychologists and public administration scholars from Leiden University will study public acceptance of the hydrogen transition in the Netherlands. They will look at the labour market impact, public perceptions of hydrogen and businesses’ willingness to invest.

To better prepare students for lab sessions, a team from the BSc-programme Bio-Pharmaceutical Sciences (BFW) creates interactive videos. These videos use humour and examples to show students basic skills and commonly used procedures. 'We want to make education more efficient and fun.'

To tackle the high workload at our university, and at the insistence of the University Council, the Executive Board launched the Workload Reduction Fund last year. The first fund-financed projects have since begun. Two staff members explain how their ideas can help others.

Why do vulnerable groups fail to make use of benefits that they are entitled to? This is what Max ten Velde researched in his Master’s in Management of the Public Sector thesis, which has been nominated for the Netherlands Court of Audit’s thesis prize.

Freezers set three degrees higher, a recycling bin for plastic petri dishes or timer switches installed on equipment: a growing number of Leiden University laboratories are taking small – but effective – steps to reduce their environmental impact, via the internationally recognized Laboratory Efficiency…

He brings order to chaos and analyses satellite swarms. During his PhD research, mathematician Oliver Nagy delved into random networks and how they reach equilibrium. Along the way, he also developed a handy tool. This knowledge is valuable for calculations related to communication networks.

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.

With the new Euclid satellite, scientists are going to map a large part of the sky. The satellite ofthe European Space Agency (ESA) will soon give them a better view of the galaxies and matter in the universe. Professor of Galactic Astronomy Koen Kuijken and a team of Dutch scientists are receiving…

Researchers from the LUMC and the Universities of Granada and Almería have found a gut bacterium that is associated with stronger muscles in people and mice. Their findings, published in the journal Gut, hint at the potential for new probiotics to support muscle strength and healthy ageing.

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.