The Leiden Leadership Programme is going to innovate. After 12 years, the honours track for master’s students will get a new set-up. We asked two of those involved about the ins and outs of the new LLP. ‘You learn what leadership style suits you and how to make an impact.’

How can the university decide which partners to work with and why? This is a question many of us have, both within and outside our community. The advice presented by the Temporary Committee on Assessing Ethical Aspects of Collaborations should provide answers.

Amidst the lathes and welding machines of the Fine Mechanics Department, Emiel Wiegers is working concentratedly on a metal cylinder. He and his colleagues design and construct components for researchers' set-ups. ‘We are a bunch of inventors who enjoy helping the researchers in our Faculty.’

He did an English-taught degree, completed a master’s abroad and now teaches on an English-taught programme at Leiden University College The Hague. Jan Meijer is the definition of an international researcher and he’s proud of it.

No less than six Leiden projects received a grant for quantum research from the national growth programme Quantum Delta NL and the NWO. After all, in order to boost quantum technology not only industry is needed, but also science. Research towards new sensors, faster algorithms and quantum materials,…

The youngest institute of the Faculty of Science has had a real growth spurt in recent years. It is up to Martina Vijver as the brand-new scientific director to secure that growth and further develop CML. 'This is a challenge that I am really looking forward too,' says Vijver. 'Together with my colleagues…

Museum Boerhaave commemorated the hundredth anniversary of Einstein’s Theory of General Relativity with the exhibition ‘Einstein & Friends’. The exhibition shined light on the famous physicist’s Dutch friends and his love for Leiden. A review featuring seven images can be found below.

Prof. Andrea Evers is a health psychologist who studies the role of behavioural factors in health and disease. As a Medical Delta Professor, she is now affiliated with Leiden University, TU Delft and Erasmus University. In that position, she conducts research at the intersection of various disciplines.…

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.

If you want to stay fit, you have to go to the gym regularly, and – hopefully - cleaning our teeth is something we do at least twice a day. So, why shouldn’t we keep on working on a safe and healthy work climate, HR Director Esther van Opstal asks in a conversation on where things stand now with the…

Academic freedom is something to be cherished. The freedom to conduct research, design courses and publish research findings as we see fit is crucial to our work.

The European Space Agency (ESA) has published an interim data release from Gaia, the space telescope mapping out the Milky Way in 3D. The first scientific papers published today reveal half a million stars in the Omega Centauri globular cluster, nearly 400 candidate gravitational lensers and the positions…

Samen met een groep enthousiaste wetenschappers bezocht ik deze maand verschillende universiteiten en andere kennisinstellingen tijdens een kennismissie in Indonesië.

The Leiden University interdisciplinary program Liveable Planet is working on a ‘Liveable Planet Academy’ as a follow-up to its activities. The coordinating team visited the transdisciplinary Leuphana University (Germany) to get inspiration for the setup of the academy.

On 22 May, astronaut André Kuipers opened the new Mediterranean garden in the Hortus. With this water-efficient garden, the Hortus aims to offer inspiration for future- and climate-proof garden planting. Prefect Paul Keßler and scientific director of the Leiden Observatory Ignas Snellen also signed…

‘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…

PhD candidate Fien Demuynck researched how wind farms affect fish and how to minimise any negative impact.

To what extent does exoplanet Proxima b resemble our Earth? And is there some form of life present? Astronomers hope to find answers to these questions with the new European Extremely Large Telescope (ELT). An NWO research grant of €18 million will allow a Dutch consortium to continue building instruments…

Democracy may lead to more deforestation in the tropics. So write environmental scientist Joeri Morpurgo and his colleagues in the prominent scientific journal Biological conservation. They found that competitive elections are associated with more loss of tropical rainforest than elections without competition.…

She’s not one to seek the spotlight, but when it comes to raising the profile of the service desk, Brigitte Kraakman goes the extra mile, even if it means stepping out of her comfort zone for an interview. As a familiar face behind the Faculty of Science’s service desk, Brigitte is known for her helpfulness…

‘All the groceries, but not a fig for young workers’, read a banner during the occupation of Ahold’s headquarters in 1981. ‘For a long time, young workers were not taken seriously, but they managed to put themselves on the map’, says historian Rosa Kösters.

There is something strange about that new student Angela Ignatius. She is brilliant, helpful and always available. She summarises teaching materials, helps with assignments and is even willing to write your thesis for you. But to what extent do you let her? It’s the big question in this – sometimes…

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.

Chemotherapy, but without hair loss or extreme fatigue. It may be possible if the toxic drug only becomes active where it is ‘switched on’ by light. Matthijs Hakkennes has helped bring that idea closer to reality and obtained his PhD cum laude. ‘I received many thank-you emails from China and Bangla…

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. On April 17, he has a busy day.

In the Philippines, Indigenous communities have been harvesting wild honey for centuries. A new chemical analysis of this honey now provides insights into the biodiversity of the region. ‘And an additional reason to protect the national tree properly,’ says lecturer Merlijn van Weerd of the Centre for…

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…

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. On March 13, 2026, he is on a knowledge mission to South America.

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.

Conference

That a parrot can copycat sounds is nothing new. But vocal learning is not common in animals. Researcher Carel ten Cate of the Institute of Biology Leiden (IBL) of Leiden University has now discovered a duck species that can imitate sounds. ‘It started with an obscure reference about an Australian musk…

Who is the real creator when a musician uses AI? This was the burning question for Adam Lukawski, himself a composer. During a fascinating premiere at Amare, The Hague’s cultural hub, he demonstrated what cocreation sounds like.

The fact that corona has created a wave of creativity is evident when walking around in the lab of pharmacologist Coen van Hasselt from the LACDR. Suddenly there were far fewer master's students permitted in the lab for their research. So Van Hasselt came up with smart solutions to enable lab work to…

The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’

Last week we were informed that Prof. A. Hordijk, emeritus professor at the Mathematical Institute, has passed away. Arie Hordijk (1940) came to the Universiteit Leiden in 1976 and has been a professor of Mathematics of Operations Research at our institute until his retirement in 2005.

Vanaf september 2025 biedt de Faculteit Governance and Global Affairs de bacheloropleiding Cybersecurity & Cybercrime aan. Deze unieke Nederlandstalige opleiding leidt studenten op tot veelzijdige cyberexperts. ‘Er is veel vraag naar specialisten op het gebied van cybersecurity en cybercrime’.

‘Rudy van Vliet is always willing to go that extra mile to help us,’ is what students say about him. The lecturer in the Computer Science bachelor’s programme not only teaches his regular courses but also offers additional classes to prepare students for programming competitions. His dedication to students…

Some children start life with a disadvantage. Sometimes even before they are born. A new research project involving Professor Wessel Kraaij of Leiden University investigates how data science can help give these children a good start in life.

The Sustainability Monitor 2023 shows that Leiden University is taking its sustainability efforts seriously.

With the holidays just around the corner in this dark month of December, when we light candles as a symbol of warmth and hope, we would like to take a moment to reflect on this past year. We have accomplished a great deal together but the year has been difficult at times.

Nederlanders met lage inkomens lopen tot 1,5 keer meer risico op het krijgen van een hartaanval of beroerte dan rijkere landgenoten. Bij Surinaamse Hindoestanen is dit risico 1,9 keer hoger. Dat blijkt uit onderzoek van het LUMC en het HagaZiekenhuis. Nederlandse artsen kijken tot nu toe niet naar deze…

The 2025 Grassfields grant has been awarded to Skill’Ed, an interfaculty initiative aimed at supporting students in developing transferable skills and preparing for the job market. Skill’Ed was selected by the review committee for its strong alignment with our educational vision and strategic plan,…

When a bacterium becomes more resistant to one antibiotic, it sometimes becomes more sensitive to another. To better understand this interaction, researchers from the Leiden Institute of Biology (IBL) and the Leiden Academic Center for Drug Research (LACDR) under supervision of Daniel Rozen and Coen…

Research by The Young Academy on the length and intensity of the Dutch academic year has given us food for thought. Do our staff have enough time and space to conduct research? And do we ask too much of our students? The Ministry of Education, Culture and Science asked us universities to think about…

Cells in our bodies are often threatened by errors in our own proteins. The FLOW consortium, comprising scientists from various institutions including Leiden, is poised to meticulously map out for the first time how cells control proteins, correcting or removing faulty ones. This endeavour holds promise…

Did you know that algorithms can help with the prevention of air pollution and ships sinking in the sea? A team of Leiden University researchers have worked together with the Dutch Ministry of Infrastructure and Water Management to look in data-driven inspection of ships. In this interview, Gerrit Jan…

How do you detect people at high risk of heart attacks and strokes? And how can we improve the treatment of atherosclerosis? These are the questions that keep LACDR researcher Marie Depuydt busy. She is investigating the immune cells that contribute to the worsening of atherosclerosis. ‘It's a challenging…

Citizens still see great value in science communication and want to be increasingly involved in science. This is evident from research by the National Expertise Centre for Science & Society (NEWS) and researchers from the Science Communication and Society department at Leiden University.