Is my cap on straight? Where in the cortège will I be walking? These are some of the questions asked by professors joining the Dies Natalis procession for the first time.

She walked into the Sylvius building as a wide-eyed twenty-something in 1984, and next year, she’ll be leaving us as a soon-to-be retiree in her sixties. Ine Tijdens (66) reflects on more than four decades at LACDR. ‘One year, I got a little whip for Sinterklaas. That says something about my persona…

A new academic year also means a (partly) new Faculty Council. What are the priorities for this year? We spoke with Chair Véronique Roos and Vice-Chair Lars Jeuken. ‘Anyone can come to us – we’re here to help.’

Nausea, neurologic pain and hair loss: some of the severe side effects of chemotherapy. Not necessary, biochemist Liyan Zhang showed. Together with Leiden biologists and others, she achieved great results with a drug that is only active in combination with light. Zhang will defend her PhD on 4 July.

On Saturday 16 April, secondary school pupils will once again have a chance to sink their teeth into the hardest language-related questions during the final of the Linguistics Olympiad. Professor Sasha Lubotsky and PhD student Cid Swanenvleugel are both former Olympiad winners. Now they are involved…

The availability of natural resources, the energy transition, the importance of circularity and our dependence on China. This and more is what Professor of Industrial Ecology René Kleijn's inaugural lecture is about.

Fancy seeing how your job is done at a university abroad? Project Managers Christina Schlüpen and Jeannette de Wolf from the Leiden Institute of Chemistry did just that. They both spent a week shadowing a European colleague: one in Bologna and the other in Berlin. This was through the Una Europe alliance,…

Designing innovative algorithms, thinking outside the box, and brainstorming over coffee with his colleagues — this is what physicist Stefano Polla enjoys most. His success shines through in his nomination for the C.J. Kok Jury Award 2024 for PhD thesis of the Year.

Mechanics play a larger role in blood vessel formation, and other developmental biology, than previously thought. Cells appear to respond to mechanical signals, such as pressure. Through the extracellular matrix, a network of fibrous proteins, cells can supposedly exchange those mechanical signals over…

An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

Nathaniel Martin, Professor of Biological chemistry, wondered what would happen if you take an antibiotic that has been known for 70 years and try to improve it with the latest tools of modern chemistry. Turns out it can become up to a hundred times more potent and prevent the growth of some drug-resistant…

This year's Nobel Prize in Physics goes to quantum physics research. The prize will be awarded on December 10 in Stockholm. Physicist Bas Hensen explains why this is important and how his research in Leiden relates to it.

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.

CML grants three Stans Awards each year, known as the best PhD paper, best student thesis and best outreach from the past year. The CML staff nominated students and colleagues and this year’s jury Prof.dr. Koos Biesmeijer and Prof.dr. Nicole de Voogd made the final decision.

Three Leiden professors have recently been awarded the most prestigious scientific accolade in the Netherlands: Maria Yazdanbakhsh and Marc Koper have been awarded a Spinoza Prize and Judi Mesman a Stevin Prize. They received their prizes on 13 October.

Thousands of first-year students and hundreds of mentors kicked off the EL CID on Monday morning. This year for the first time, the introduction week of Leiden University and Leiden University of Applied Sciences was also open for students of Regional Training Centre mboRijnland and the Leiden Instrument…

The first hybrid Leiden Research Support Conference – organised for and by research support staff – took place on 27, 28 and 29 September and focused entirely on organising effective research support.

Different groups can have different memories of the same historical event. This can lead to conflict but does not have to. How is this, and how can countries and people reconcile with the past?

A particular group of counter protesters have been sighted at numerous Black Lives Matter protests that were held in the United States. An extreme right movement known for its characteristic Hawaii Shirts and heavy weaponry that calls itself the Boogaloo Boys. Which is cause for concern among the American…

From Roman ships to the ‘Gordon’ cavalry mask. Alumnus Tom Hazenberg was involved in spectacular finds that put the Dutch frontiers of the Roman Empire on the map. His mission is to give heritage back to the people.

The tenth International Conference on Rapa Nui (Easter Island) and the Pacific will be a special edition with a focus on reconciliation. The fatal shooting in 1722 will be remembered, when the Dutch shot and killed ten Easter Islanders. The conference will be held in Leiden from 19 to 24 June.

How can the Netherlands help secure a peaceful future for Israel and Palestine? At a recent meeting at the university, two remarkable speakers shared their perspectives: Somaya Bashir, a Palestinian woman living in Israel, and Palestinian journalist, Houssam Khadra, who fled Gaza over a decade ago.

How do people become involved in terrorist organisations? Liesbeth van der Heide sought the answer to this question in a Malian prison, where she interviewed terrorists in a tiny cell. She discovered that the will to survive and social context are often more decisive than individual ideological convictions.…

What does it feel like to become a citizen in a new country? For her PhD research, Hannah Bliersbach immersed herself in the world of immigration. She interviewed dozens of new citizens in Germany and Canada and found that citizenship is, above all, a transactional process.

From 16 to 20 June 2025, the Institute of Security and Global Affairs of Leiden University hosted the annual Summer School The European Union, the United Nations and Global Governance in The Hague. The programme brought together recent graduates, PhD students, and young professionals from a variety…

December 2020 saw the crowning publication of the Landscapes of Survival project by Professor Peter Akkermans. Its main topic is human habitation in marginal environments like the deserts of the Arabian Peninsula. ‘The people living here built their own society, and they would not have viewed it as…

For a while, it was uncertain whether prominent American politician Nancy Pelosi would travel to Taiwan. But last Tuesday, she did visit – much to the displeasure of China. Asia expert Casper Wits explains why China reacted so strongly and what the consequences of the visit may be.

Many intelligence services have an outdated view of the world while the threats they should protect us from are becoming more complex. Serviceman and researcher Bram Spoor warns that NATO and member state intelligence organisations cannot always predict the dangers.

Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.

War and peace studies. A topic that is more relevant than ever because of the war in Ukraine. In September, the MSc Crisis and Security Management (CSM) will start a new track: War and Peace Studies. CSM’s Programme Director, Ernst Dijxhoorn, discusses the new track, how it was created and what students…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Moderne oorlogsvoering kent geen grenzen. Dreigingen zijn steeds vaker digitaal. Promovendus Annelies van Vark stelt dat Scandinavië beter voorbereid is op gevaar. Zij pleit voor een sterkere rol van de krijgsmacht, herinvoering van de dienstplicht en paraatheid – óók bij burgers.

Famine, bombing of civilians and the almost complete destruction of Gaza. The world looks on at an unfolding humanitarian disaster. Why have our international organisations failed to prevent this tragedy? An interview with Professor Jan Aart Scholte, an expert on globalisation and global democracy.

Terrorism, crisis, violence, intelligence, diplomacy, war and peace are topics that are broadly covered in ISGA's research activities. Regularly, ISGA researchers appear in international media to discuss their research expertise. This item offers an overview of non-Dutch and non-English articles and…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Emeritus professor Joke Bouwstra (LACDR) will receive this year's Dr Saal van Zwanenberg Ereprijs: a tribute to her years of fundamental research on the skin and the transport of drugs through the skin. This is the first time the prize has gone to a woman.

In Sci-Fi comic book Resist NOW!, wondrous adventures will illustrate possibilities to combat antimicrobial resistance. But the comic book will only be produced if enough money is raised to make the project into reality.

Identifying novel antibiotic compounds to tackle antibiotic-resistant bacteria. Researchers from Leiden University and VU Amsterdam will unite through a project now funded by NWO’s Open Technology Programme (OTP), which awarded the collaboration nearly one million euros.

Sebastian Pomplun receives an ERC starting grant of 1.85 million Euros in five years. He wants to develop synthetic transcription factors that can enter cells and activate or deactivate specific genes. For example to disrupt cancer-related processes or to trigger the production of an important missing…

We asked a lot of everyone last year. The Personnel Monitor showed that the workload was high in 2022 and Covid took its toll. I therefore think everyone deserves some downtime. Time away from the daily grind.

Sebastian Pomplun manages to reach proteins with drugs even where this was thought impossible. That is why he and his research group have been allowed to join Oncode Institute. With nine others, he had been selected from 72 applicants to contribute to Oncode Institute's mission: to accelerate breakthroughs…

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.

The European Research Council (ERC) has awarded Nathaniel Martin a Proof of Concept (PoC) grant. With it, his group aims to make a dangerous but potent antibiotic less toxic. He receives €150.000.

All the information about the Leiden University Global Fund (LUGF) funding instrument is given here, specifically the seed funding options for collaboration with regional partners. The LUGF awards seed funding to support regional collaborative initiatives.

Celebrate Leiden University’s 450th anniversary with the special International Staff Week Connecting New Opportunities, taking place from 3 to 5 September. Join academics and professionals to explore transformative developments and challenges of the 21st century in international higher education.