The Digital Lab is open! This new lab is meant for staff and students who are looking for a place to work, experiment, and find support for their digital research. There’ll be a kickoff event, with live digital demos and a roundtable on “the Humanities in a Digital World” on Friday October 29 in the…

Sunshine, ice cream, coffee, and plenty of good vibes. Once again, students and staff made the most of the We are Science Week. Relive some of the highlights with our photo report!

Quantum Rules lab van Leiden Universiteit biedt proefjes en experimenten voor middelbare scholieren om te leren over kwantum natuurkunde. Henk Buisman vertelt over het 5 jarige jubileum.

Every year, the first Monday in November is Emergency Response Day: the opportunity to recognise the importance of emergency response officers. At Leiden University over 400 enthusiastic and dedicated emergency response officers make sure our students and staff are safe, says emergency response training…

Maud Rijks recently joined the Institute for History as a PhD candidate within the starting grant project "You say security, I say crisis – Challenging Disciplinary Boundaries in Security Cooperation and Crisis Governance" under the supervision of Dario Fazzi. Below she introduces herself.

Mariken Teeuwen started at the Institute for History as a professor by special appointment of Script Culture of the Middle Ages on 1 March. ‘I’m looking forward to doing research together with students.’

Recently, our respected and talented former colleague Bente Hilde Bakker passed away after a long and brave fight with illness. She received her mathematical training at the Vrije Universiteit in Amsterdam and also obtained her PhD there under the supervision of Jan Bouwe van den Berg and Robert van…

During her study of Latin America, Tineke Floor laid the intercultural foundation that has served her well in her career. Floor currently works as Director Europe at African Parks, an NGO that promotes nature conservation in Africa. How does she look back on her studies? And why the leap to another…

A few weeks ago, Dutch pension giant ABP decided to divest from fossil fuels. But is this actually going to help the climate? Natascha van der Zwan, Arjen van der Heide and Philipp Golka (Institute of Public Administration, Leiden University) address this question in our new article for S&D.

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.’

What unfolded in shared kitchens, along narrow corridors and around Wednesday coffee tables became more than an assignment. It became a living exploration of what ageing means in practice.

Leiden researchers, led by Sebastian Pomplun developed a new method to screen hundreds of thousands of molecules for drug discovery, using mass spectrometry instead of DNA tags. ‘We wanted to make drug discovery faster and more accessible.’

How would you convert Egyptian hieroglyphs into Latin script? And what is actually the correct translation of dishes on a Vietnamese menu? On Saturday 28 January, high school students from all over the Netherlands will come to Leiden to ponder a series of language-related puzzles. Their goal? To win…

Collaborations with funds and foundations enable a lot of research. As Fundraiser for Foundations and Major Donors, Madelon Rolleman seeks out these opportunities for Leiden University. ‘I’m always looking for ways to start my conversations with funds and foundations.’

One of the good things about my job is that I come into contact with so many different alumni. It’s incredibly important that we build good relationships with our alumni from a young age already. We can help our graduates develop skills and grow their network, and they in turn can help our organisation…

A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…

Thursday 19 February – Snow, board games, a ski lift and more board games. And in between, a bit of work. That’s Jasper’s winter sports day.

She works four days a week as a project manager at LIACS and trains six days a week with the Dutch Para Climbing team. Christiane Luttikhuizen balances her role at the Faculty of Science with competing at a high level in climbing.

Do children growing up in a jihadist or right-wing extremist household develop the same extremist views as their parents?

Leiden University and Stadslab Leiden invite you to improve the Leiden and The Hague environment with 450 extra trees – a living reminder of 450 years since the Relief of Leiden and the foundation of Leiden University.

The annual homicide rate has decreased considerably since the 1990s. In their hunt for an explanation, researchers Pauline Aarten and Marieke Liem made a surprising discovery: if you divide homicides into categories, you find significant differences in the homicide rate. Publication in the European…

A delegation from Xi’an Jiaotong University visited Leiden University on 25–26 March, celebrating ten years of cooperation in education and research, and exploring new opportunities for future collaboration.

In traditional style, 2025 was ushered in at our faculty with the Meijers Lecture followed by the New Year's Reception. On Thursday 16 January 2025, the Meijers Lecture took place in the Lorentz Lecture Hall where the Meijers Prizes and the Van Wersch Springplank Prize were also awarded. At the New…

An extra-long procession with musical accompaniment will mark the beginning of the university’s 450th birthday celebrations on 7 February.

Having lectures on sustainability when you're a first-year student of Law, or a course on climate change when you're studying Public Administration may sound odd, but that is just what Associate Professor in Environmental Sciences Thijs Bosker wants to see happening. Together with his colleague Paul…

An international team of astronomers has revealed the first 'chemical profile' of an exoplanet's atmosphere. The team, including Leiden astronomer Yamila Miguel and provenda Amy Louca, made the profile using so-called Early Release Science data from the James Webb Space Telescope. The results have been…

Symposium

Before the SSH labs in the Sylvius building will open their doors in the new academic year, there are still some obstacles to overcome. But when everything has been taken care of, the laboratories will be a place ‘where you can do almost everything you would ever want to do in your lab research.’

Op maandag 1 april 2024 stierf onze leermeester, vriend en gewaardeerd collega Dr. Alexander Hendrik de Groot (Sander).

Exhibition

Arts and culture, Ontspanning door inspanning

Conference

Should Leiden University cut its ties with the fossil fuel industry forthwith? This was the main question in a debate between students and staff. The answer was clearer for some than for others.

Rector Magnificus Carel Stolker will retire on 8 February. If there’s one theme running through his career, it’s the links between the University and society. In this series of pre-retirement discussions, Stolker will talk one last time to people from within and without the University. In this first…

Natalia Sobrino-Saeb, third-year student at Leiden University College The Hague, won the challenge by the Ignitor Fellowship Program held by the Nobel Peace Center for her essay on the threats to journalism in Mexico. On December 10th Natalia met the Committee of the Ignitor Fellowship in Oslo and attended…

In his leaving interview, Martijn Ridderbos doesn’t have to think long when asked what he is most proud of. ‘Bringing people together; creating things together. Reducing the gap between researchers and the staff who support them because the latter are essential. We’ve achieved that and the seeds have…

It has been just over a decade since the first students graduated with Leiden University’s unique Liberal Arts and Sciences Bachelor degree. We caught up with one of those pioneering graduates.

Last year, 15.8% of all employees of Leiden University experienced undesirable behaviour. This is one of the findings of the 2021 Personnel Monitor. ‘That number is far too high. We have to get rid of the taboo on raising this issue and addressing offenders,‘ says Martijn Ridderbos, in an open and…

Annetje Ottow is the first female president of the Executive Board of Leiden University, which means a return to her Alma mater.

Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disc galaxy seems as orderly as present-day galaxies, but we see it as it was when the Universe was only 700 million years old. This is surprising since, according to our current understanding of…

The newly established Leiden Jewish Studies Association aims to bring together Leiden scholars working on Judaism. The first annual conference will take place in Leiden on 6 and 7 December. Leiden professors and co-organisers of the LJSA Sarah Cramsey and Jürgen Zangenberg talk about their plans.

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

In the MS Cognitietour, psychologists and neuroscientists from Leiden University discuss the latest scientific knowledge with MS patients and their loved ones. This leads to insights: 'One lady told how much stress she felt from all those caregivers around her bed.'

De Faculteit Archeologie bestaat dit jaar 25 jaar. Ter ere van dit jubileum opende de faculteit op 1 maart zijn deuren voor het brede publiek.

On Tuesday November 25, 2025, Sarah Cramsey travelled with students from her masters seminar on 'New Approached to the Holocaust in Central and Eastern Europe' taught at the History Institute to Amsterdam for a unique opportunity. There, Lotte Sophie Groenendijk, an alumna of the History Research Masters…

Doing a PhD can be challenging. Moving to a foreign country can be challenging too. PhD candidate Ilya Kokorin, who was born in a small town in Siberia, faced both, while at the same time having to overcome a number of additional challenges and build a future post-PhD.

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.

When Floris Harm took up his role as director of the Leiden Asia Centre, he made a remarkable discovery on the university website. It turned out that a past family member was one of Leiden University’s first sinologists.

The speed at which science is changing our lives gives rise to tensions and concerns. In his talk at Leiden University, Minister Robbert Dijkgraaf (Education, Culture and Science) said we should talk more about science’s relationship with society and political decision-making.

In the confrontational ‘House of Misconceptions’, visitors put themselves in another person’s shoes and have to justify their existence. The performance is the result of a unique collaboration between the Liquid Society art collective and Professor of Law and Society Maartje van der Woude and her st…