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…

A bacterium hiding from the immune system and picking up bits of DNA from its environment. The result: gaining new traits, such as better protection against antibiotics. Fortunately, we have not found such a damning scenario yet. However, PhD student Renée Kapteijn did find the first clues, which…

At a festive gathering, 25 projects were awarded a Kiem grant 2025 - 2026 of 10,000 euros. Interdisciplinary teams from Leiden University will conduct innovative research into horror, international payments and fungi in historical collections, among others.

A time-lapse of the universe in more detail than ever before: that’s the aim of the NSF–DOE Vera C. Rubin Observatory in Chile, which will unveil its first images of the night sky on 23 June. Researchers at Leiden Observatory have played a major role in making it all possible.

Facility

Professor Judi Mesman interviewed 40 people of colour in leadership positions. What can we learn from them?

The COVID-19 pandemic forced many staff of Leiden institutes abroad to leave their posts in a hurry. How is the KITLV Jakarta team doing now? Director Marrik Bellen talks about the turbulent times for this Leiden institute and its staff. And can we learn anything from the Indonesian approach?

The theme of the Heritage Open Days Leiden on 10 and 11 September is sustainability. At four University locations guides will talk about the history of the buildings and how they have been renovated. And there is a first: tours in sign language.

150 years of the Fine Mechanical and Electronics Department—a milestone our instrument makers and electronics engineers can truly be proud of. For a century and a half, they have crafted unique research instruments for the Faculty of Science, making an indispensable contribution to its experimental…

From malaria parasites as a vaccine to how top-level bureaucrats reach their decisions: seven researchers from Leiden University have received a Vidi grant from the Dutch Research Council (NWO). This 800,000-euro grant will enable them to develop their own innovative line of research over the next five…

A team including staff from Leiden University won the Open Initiative Trophy on 11 February, a prize for the best open science initiative in the Netherlands. The winners developed Reprohak, a hackathon-like event where participants repeat research to see whether the results were reproducible.

A CT scanner to treat eye cancer, energy-efficient software for the future and a test to identify male chick eggs. Three projects by researchers from Leiden University are to receive funding from research funder NWO’s Open Technology programme, to which the business sector also contributes.

On Monday, 13 October, Jasper will travel to Brussels with a delegation from Key Region Leiden. Why is this collaboration important? And who will he be having dinner with that same evening in Voorschoten? Jasper shares his account of a long and interesting Monday.

From research on stellar winds to sign language: an impressive seven researchers from Leiden University will receive a prestigious Vici grant from the Dutch Research Council (NWO).

A delegation from Leiden University recently embarked on a knowledge mission to various NGOs, universities and government organisations in Indonesia. New partnerships were formed and important knowledge exchanged, and researchers from Leiden gave guest lectures.

Eight scientists from Leiden University have been awarded a grant by the Dutch Research Council (NWO). With this Vidi funding, the researchers can set up an innovative line of research and further expand their own research group over the next five years.

Early diagnosis, new treatments, and personalised care: all of these are possible if we can better unlock the wealth of information hidden in health data. Unfortunately, this data is often poorly organised, difficult to access, and not interoperable. The new international Leiden Institute for FAIR and…

This Thursday saw the launch of PLNT The Hague, an entrepreneurial hub where Campus The Hague students can learn all about entrepreneurship. They will have the opportunity to develop entrepreneurial skills, build a network and begin an innovative startup.

Researchers and policymakers are welcome to attend the AI & Society Conference in The Hague on Friday 23 June. The SAILS interdisciplinary research programme will be taking a nuanced look at the state of the art of AI technology. And offering fresh perspectives.

Research into depression in children, Leiden alumni in the Dutch House of Representatives and an exceptional achievement by one of our students: what do this topics have in common? They are among our most read stories of 2021.

From pipetting in the lab to shining in front of the camera at a global student event. With 8.000 viewers watching the livestream, Marjolein Crooijmans presented the iGEM Giant Jamboree in Paris.

For years, the late professor Marten Durieux personally mentored and funded students from Sudan to study physics in the Netherlands. Colleague Sense Jan van der Molen calls his endeavour remarkable: ‘Marten Durieux has done a great job with these students, at a time when diversity was not yet a big…

The year 2023 saw the earthquake in Turkey and Syria, the Wagner Group rebellion and wildfires and floods as all the weather records were smashed. Our most-read stories were about the climate crisis and the elections: here’s the list.

Human resources

After ten years and one day, Leiden Observatory has a new director. As of 1 September, Ignas Snellen will set the course for the astronomical institute. In this interview, you will get to know Ignas. Or at least a little. That is why we gave him five dilemmas and asked the people around him who he really…

Organisation

Thursday 15 January starts with a long journey and ends with an equally long working day full of current issues. Jasper visits the Mathematical Institute with the scientific directors of our faculty and attends a meeting on collaboration with the Ministry of defence.

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

An impressive 12 researchers from Leiden University have been awarded an 800,000-euro grant by the Dutch Research Council (NWO). This will enable them to develop their own line of research over the next five years.

Theo van den Doel received his PhD in January for his research on veteran support. This showed that for long the government learned little from past missions. He has since presented his dissertation to the Lower House of Representatives, and the Minister for Defence, Kajsa Ollongren, has responded to…

The world is currently beset by many problems. The armed conflict and continuing violence in Israel and the Palestinian territories is resulting in numerous casualties. This is giving rise to many emotions and reactions worldwide, and also greatly affecting our own university community. We have seen…

On top of the Gorlaeus Building’s bike parking sits a hidden green surprise: Leiden’s largest rooftop garden. Since this academic year, the garden has been open to all students and staff.

He officially began as Strategic Adviser for Real Estate on 1 July. But in practice, Ferdy Poppelier, the former Director of Real Estate, will still mainly be the principal of construction projects. ‘It’s great to see that we as the Real Estate expertise centre have achieved so much.’

In an essay Professors Jan Willem Erisman (Leiden University), Chris Backes (Utrecht University) and Wim de Vries (Wageningen University) suggest amending nitrogen policy in the Netherlands. They call for a shift from a deposition to an emissions policy, with sectors responsible for reducing their own…

How is interdisciplinary collaboration faring at Leiden University? And has disciplinarity been completely abandoned? I’d like to reflect on some concerns among colleagues and on our plans for the future.

As an exchange student, alumna Jessica Ma was already looking for a bridge between statistics and the real world. In Leiden, she gained the experience to follow her interests and, after a few detours, she landed her ideal job with Disney in the United States.

Eight early-career researchers from around the world have been awarded a 51 Pegasi b Fellowship – a prestigious opportunity for astronomers. Julia Santos, a PhD candidate at Leiden Observatory, is one of them. We asked her four questions about this remarkable fellowship.

PhD candidates Mohammed Saleh and Berfin Gülave (Division of Systems Pharmacology and Pharmacy) published their research paper on “Using the LeiCNS-PK3.0 Physiologically-Based Pharmacokinetic Model to Predict Brain Extracellular Fluid Pharmacokinetics in Mice”.

Education

An impressive 22 research projects by Leiden researchers have been awarded Veni funding from the Dutch Research Council (NWO).

If European countries rely solely on technological advances, they won't be able to limit global heating to 1.5 degrees. Households will also need to change their lifestyles. This 'inconvenient truth' is the result of calculations done by industrial ecologist Stephanie Cap. ‘It's not a popular message,…

A knowledge-sharing session was held on Thursday 25 March for members of boards of examiners. Good reason to give one of them a call. We spoke to Jan Jansen, Chair of the Board of Examiners for Cultural Anthropology and Development Sociology (Faculty of Social and Behavioural Sciences) and an external…

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.

Various Leiden researchers have been awarded a European grant to explore the commercial or societal potential of previous research.

This summer, Leiden University will be setting up camp at Lowlands with two research projects. Participants are invited to explore their fears and feelings, and in doing so, contribute to scientific research.