How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

The Organisational Development team, led by rector Erwin Muller, has organized numerous meetings with colleagues from a variety of university departments over the last few months. Together, they’ve looked at organisational challenges, bottlenecks and opportunities. From these meetings, a strong demand…

Maaike Kempes believes more attention should be paid to non-congenital brain injuries in suspects. This may partly explain their criminal behaviour.

In the 2020 presidential elections, voters in several, mostly southern, electoral districts of the United States saw ‘their’ polling stations closed by the local authorities. In order to cast their vote, they had to travel further or use the mail ballot. Media reports and civil rights activitsts often…

The board of the Pastoor Schmeits Prize for Astronomy Foundation has awarded the Pastoor Schmeits Prize 2025 to two individuals: Yamila Miguel, affiliated to the Leiden Observatory, Leiden University and SRON, and to Else Starkenburg, affiliated to the Kapteyn Institute, University of Groningen. The…

Obsidian, a volcanic glass-like material, is often used for making tools by Mesoamerican societies. In Honduras, certain obsidian artefacts do not yet have a known provenance. PhD candidate Marie Kolbenstetter and Assistant Professor Dennis Braekmans were awarded a Corrie Bakels Grant to explore thus…

To mark the university’s 450th anniversary, the Leiden Discoveries science route has been updated and was relaunched on the Night of Discoveries. New signs in town and a revamped website tell Leiden residents and visitors the stories of the city’s spectacular discoveries.

As part of Mariana Françozo’s BRASILAE project, a group of representatives of the Ka’apor people was invited to visit Leiden. The Ka’apor, an indigenous people from Brazil, are some of the present-day relatives of the Tupi-speaking peoples who used to live in the northeastern region of Brazil, claimed…

Zou jij wel eens willen zien hoe het belangrijkste gebouw van onze Science Campus op het Leiden Bio Science Park tot stand komt? Op de Dag van de Bouw, op zaterdag 17 juni, kan dat!

Kirsten Sandberg appointed as Rotating Honorary Chair in Enforcement of Children’s Rights 2025/2026

On 8, 9 & 10 October Share the LUVE takes place, the graduation show with the work of this year’s graduates of the Cultural Anthropology master Visual Ethnography. In three days 22 films, a graphic novel, artwork and photos will be presented in De Buurt, close to Leiden Central Station. If you don’t…

PhD student Janine Westendorp and her colleagues conducted literature research on what patients with cancer and their loved ones perceive as harmful communication from healthcare providers. The results were published in the journal Psycho-Oncology and are released as a poster to distribute to healthcare…

This year, Leiden University College (LUC) celebrates its 15th anniversary with the theme ‘Global challenges, local impact’. This theme highlights how LUC tackles global issues through education and research while making tangible contributions to Dutch society

The 50th Top 450 entry has now been published. In the run-up to the university’s 450th anniversary, we are compiling our Top 450. What is your favourite?

In early modern England, courts of law were working overtime. University lecturer Lotte Fikkers delved into the records of centuries-old court cases involving women. In Early Modern Women's Life-Writing and English Law, she reconstructs how the story they told in court differs from the one they wrote…

For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…

Students of the Advanced MSc in International Relations and Diplomacy visited the OPCW and ICJ in The Hague, gaining insights into key international organisations.

Microscopic swimmers such as bacteria do not always swim alone. There are advantages to exchanging information and cooperating. Stefania Ketzetzi and colleagues now show in Nature Communications that human-made microswimmers, too, can cooperate.

When can a patient be discharged from intensive care? Artificial intelligence can help answer this and other questions. But using such revolutionary technology in healthcare is not easy, as Anne de Hond has discovered.

On Saturday, May 4, Dr. Verena Meyer delivered opening remarks at the International Webinar 'Santri, Literacy, and Indonesia', organized by the Bali Santri Literacy Community (Sanubari) Nurul Ikhlas Islamic Boarding School in Jembrana, Bali, Indonesia.

Jasper Knoester started on 1 January as our new dean. How is he finding it, what kinds of things is he doing and what does his day look like? In every newsletter Jasper gives us a peek into his life as dean.

Researchers at eLaw contribute to groundbreaking volume on AI in radiology, offering legal and ethical frameworks, governance models, and solutions for responsible clinical integration.

On 21 June, our beloved colleague Joan van der Waals passed away after a long and rewarding life.

Morena Skalamera is Assistant Professor of Russian and International Studies. She is a familiar face at Leiden University since August 2018. Morena introduces herself below.

Groupcard provided prepaid cards to Dutch municipalities for welfare recipients, informal carers and volunteers. Now it is bankrupt, the cards are worthless and consumers and municipalities have lost money. Associate Professor Jessie Pool is investigating whether vulnerable people need better protection…

On Monday, Minister of Education, Culture and Science Robbert Dijkgraaf attended the start of Orientation Week Leiden (OWL), the introduction week for international students at Leiden University. He welcomed the students and spoke with them about their ambitions and the problems they face.

The train to The Hague holds no secrets for Jeroen Touwen anymore. Since October, the Vice-Dean of the Faculty of Humanities has been part of the board of Campus The Hague. One day a week, together with Jan Crijns (Professor of Criminal Law and, as of February 15, Vice-Dean of the Law Faculty), he oversees…

Education, Organisation, Human resources

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighbouring stars for the first time, providing a new window to better understand the chemical evolution of the cosmos.The results are published today in the journal Nature Astronomy.

An event where students came together to discuss the impact of AI on healthcare. Jurren de Groot and Yuxuan Zhu, master's students in Artificial Intelligence, took up the debate. They participated in SimuVaction, an event that brings students worldwide together in Atlanta to simulate an initiative of…

Since September, Jelle Oonk has been the chair of the Science Faculty Council. Jelle is a third-year student, combining Physics and Astronomy studies with this responsible role. Time to get to know him better. Five questions for the new chair.

Hundreds of beautiful and timeless photos by Emmy Andriesse, one of the most important Dutch photographers of the twentieth century, are now freely accessible for everyone and can be used for research, education or other purposes. Large parts of Andriesse's oeuvre are already available online via Digital…

On Prinsjesdag, 16 September 2025, the Faculty of Governance and Global Affairs (FGGA) opened the new faculty year with a reception at Wijnhaven. The opening was dedicated to the university’s lustrum theme: ‘Ahead of Time’.

Throughout the year, master's student Berber Kommerij is busy analysing medieval and early modern books and paintings. Every summer, however, she leaves for the Norwegian fjords to conduct sea kayaking tours. 'Watersports are my great love.'

In the Changemakers Lab course, psychology students Diana Shalkivska (left in the picture) and Anna Rytirova discover what happens when academic knowledge meets real-world complexity.

Astronomer Joseph Callingham and his team have observed for the first time a clear signal from a giant burst from a star outside our solar system. This would have a devastating impact on any unfortunate planet orbiting the star.

At the symposium ‘Diversity and Inclusion in the Police: from Aspiration to Reality’, the central question was how organisations can truly embody diversity and inclusion. The high level of interest (it was fully booked in no time) demonstrates that the topic is pressing—both in academia and in pract…

Stimulating the vagus nerve, which provides a direct link between the gut and brain, makes people pay less attention to sad facial expressions. This research study by psychologists Katerina Johnson and Laura Steenbergen is published in the journal Neuroscience.

In the context of the 2021 Day of General Discussion of the UN Committee on Rights of the Child, this time dedicated to alternative care, Defence for Children in collaboration with Leiden University has contributed with a paper on the 2019 Dutch Inquiry Committee on Historical Child Abuse in Alternative…

Eline van Slijpe wrote her Master of Philosophy thesis on intergenerational justice: does the current generation have obligations towards future generations? With this thesis she won the biannual J.C. Baak Prize.

bachelorstudent Serafine Beugelink ontwikkelt kaartspel over elementaire deeltjes en deeltjesfysica. Ze zet succescol haar eigen bedrijf op.

Leiden biologists have found a mutation in flour beetles that allows them to speed up their development. The study has been published in Nature Ecology and Evolution.

Education

Professor Jasper Knoester has been appointed Dean of the Faculty of Science at Leiden University. He will take up the role on 1 January 2022. Knoester is currently Dean of the Faculty of Science & Engineering at the University of Groningen. He succeeds Paul Wouters (Dean of the Faculty of Social and…

How does an embryonic stem cell decide if it becomes a heart cell or a kidney cell? That’s the question computational biologist Maria Mircea studied for her PhD research. She looked at the inside of individual cells to analyse how they change. This is what she discovered.

Almost 4400 anatomical drawings from the collections of Leiden University Libraries (UBL) are now available through Europeana. The collection shows medical art on paper from the early eighteenth century to the present day. Most of the drawings were created in or around the Leiden University Medical…

ICT, Organisation

Eduard Fosch-Villaronga from eLaw - Center for Law and Digital Technologies, and Hadassah Drukarch, explored the role of intersectionality within (rehabilitation) robot design, testbed, and standards. Being oblivious to these considerations may give way to the development of robots that fall short of…

The Faculty Council is the most important co-participatory body of the Faculty of Archaeology. Its members represent staff and students in meetings with the Faculty Board, and they can have a profound impact on the Faculty's policies. We speak with the council's chair, Merlijn Veltman, about the goals…

Christina Toenshoff has been awarded the Virginia Walsh Dissertation Award for her PhD dissertation on corporate climate lobbying. The Leiden Political Scientist, according to the jury, ‘makes a significant contribution to the study of climate and business politics.’