Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

Archaeology is the only science that allows us to study the material traces left by most of human evolution. But what happens when we bring philosophy into the picture? A new series of papers demonstrates how philosophical reflection can enrich archaeological research - especially when grappling with…

Planets existing in other solar systems contain invaluable information about the origin of planets and life. PhD candidate Yapeng Zhang has studied their atmospheres by looking at their smallest parts: isotopes. With her research she hopes to discover what makes our own solar system unique.

After many years of preparations, CERN has approved a groundbreaking new experiment: the Search for Hidden Particles (SHiP). Physicist Alexey Boyarsky was involved from the start. ‘We know there is physics that’s missing and we aim to find it.’

In a one-hour interview on Dutch radio programme Sleutelstad, Anne-Laura van Harmelen talks about her research into the role friendships in adolescents' well-being, the resilience paradox and the role of social, hormonal and genetic factors in stress-levels and resilience.

Professor Pieter ter Keurs has spent his entire career studying collecting. Now, he is retiring. ‘I hope the focus on collections will carry on.’

Suzan Verberne has been appointed professor of Natural Language Processing at the Leiden Institute of Advanced Computer Science (LIACS) from 1 October. Verberne has been at LIACS since 2017 as group leader of the Text Mining and Retrieval group.

Do you often find yourself exhausted in the lecture hall or at your workplace? Not great for your mental well-being, as Laura Pape knows. She is investigating how an online self-help program can assist in addressing sleep issues and preventing mental health problems. Join her on this elevator pitch…

During the event 'Fout?' by De Jonge Akademie, Ellen de Bruijn held a lecture about the social context of making mistakes and the psychological elements of learning from it.

A delegation from Leiden University visited the Netherlands Institute Morocco (NIMAR) in Rabat at the end of February.

With his clever measuring methods Ignas Snellen – together with his team – was the first to detect carbon monoxide in the atmosphere of exoplanets. For his pioneering work the Leiden astrophysicist has been awarded the Spinoza Prize, the highest academic honour in the Netherlands. The prize of 2.5 million…

Katharina Natter of the Institute of Political Science has been awarded the 2025 IMR Book Review Award for her book on migration politics in Morocco and Tunisia.

Leiden University College (LUC) is proud to announce that it have been awarded the Special Feature Sustainable Higher Education by the Accreditation Organisation of the Netherlands and Flanders (NVAO). This recognition affirms the deep commitment to embedding sustainability across the curriculum, research,…

When you think of a library, you probably picture books – or students quietly studying. But for subject librarian Rutger de Jong, most of the work happens online. ‘We never throw anything away. Everything produced here in the name of science should remain findable.’

Each year a staggering 18 billion chickens, turkeys, pigs, sheep, goats, and cows either die or are killed without making it onto someone's plate. Environmental scientists Juliane Klaura, Laura Scherer, and Gerard Breeman were the first to calculate this number on a global scale. 'Reducing these numbers…

Lecture

Climate and human rights will again become major issues on the world stage by the end of 2023. The new series of lunch seminars by the interdisciplinary research programme Global Transformations and Governance Challenges (GTGC) seamlessly tie into these events. All Leiden researchers and students are…

It’s often said that citizens have lost trust in their governments. But who exactly are these ‘citizens’? And which aspects of people’s contact with government agencies work better than others? These questions will be discussed at the Crafting Resilience conference (working language is English) on…

Conference

Een internationaal consortium onder leiding van Olaf van Vliet heeft een Horizon Europe subsidie van 3,4 miljoen euro gewonnen. In het onderzoek staat centraal hoe wereldwijde sociale veranderingen zoals migratie, digitalisering en de klimaattransitie de arbeidsmarkt beïnvloeden en wat daar de gevolgen…

Permission was recently given for all members of the examining committee and co-supervisors at PhD ceremonies to wear academic dress, even if they’re not full professors. How historic is this change?

Interest organisations are increasingly taking legal action and that’s a good thing for democracy, says PhD candidate Rowie Stolk. ‘It means that the most vulnerable social groups – including children and refugees, who tend to have a weaker political position – are protected.’

As Professor of Literature, Culture and Law, Frans Willem Korsten explores the interplay between literature and law. These are two disciplines that most people wouldn’t immediately connect, but Korsten can see a lot of common ground between them. ‘A fictional story can have a huge impact on law.’

Lecture

Over the centuries painters and photographers have depicted students at study in Leiden. An exhibition at the Hortus botanicus reveals the similarities and differences in 450 years of student life.

We hebben 6 van de 9 grenzen overschreden die bepalen of menselijk leven in de komende generaties nog mogelijk is op aarde. Kunnen we het tij nog keren?

Psychologists Anna van ‘t Veer and Eiko Fried will start a scientific integrity workshop tour after the summer, called Responsible Scholarship: Psychology. Their aim: giving the subject a more prominent position in the academic’s mind.

Despite an eventful afternoon – with Students for Palestine occupying the Academy Building – political scientist Hélène Landemore gave her Cleveringa Lecture as planned on 26 November. She reflected on the protest and the importance of open debate, within the university and within a democracy.

Leiden University College The Hague received the 'Top rated Programme' seal from the Keuzegids Universiteiten 2022 (Dutch University Guide). It is the ninth consecutive time the Liberal Arts & Sciences programme focusing on Global Challenges is awarded the honorary seal.

International Experience Week

On Wednesday 18 May, the students of the LL.M. Advanced Studies in International Children’s Rights presented their work to the UN Committee on the Rights of the Child with the aim to provide recommendations on how to make its decision more accessible to children.

Can playing games at the Oerol Festival enhance education? Anthropologist Caroline Archambault introduces playful innovation in her course, ArtWorks for Sustainable Livelihoods, exploring how art offers insights into and advocates for sustainable living.

From memorials to the armed forces to memory stones for individual victims. It was only later that the Holocaust took a central role in Western remembrance culture, Cleveringa Professor Frank van Vree notes. ‘Nationalists and human rights activists both invoke the experience of the Holocaust.’

How are supermassive black holes born? That is the question astronomer Elena Maria Rossi is trying to answer. But how do you investigate something you cannot see?

Leiden University College The Hague (LUC) has received a bronze medal in Elsevier’s Beste Studies 2022 (Best Study Programmes 2022). This means that both the student satisfaction regarding the quality of the programme and the programme’s performance have scored above average. Each year, Dutch news magazine…

LUC students research the Geul river’s restoration, combining sediment studies, biodiversity assessments, and policy insights for global environmental challenges

Almost 81 years after his famous protest speech against the German occupation, Leiden professor Rudolph Pabus Cleveringa will be remembered in his Groningen birthplace of Appingedam. A statue of him will be unveiled there on 12 November amid various other activities.

Wars, climate change and the effects of covid have caused a global decline in children’s well-being. In her inaugural lecture Ann Skelton, Professor of Children’s Rights in a Sustainable World, points to the disastrous effects of multiple interacting crises.

In the fight for a liveable planet, we desperately need a fairer distribution of wealth and equal rights for all, argues anthropology professor Marja Spierenburg. ‘That will also generate broad-based support for sustainable development.’

Taking responsibility concerning colonial heritage and restitution is a pressing issue for countries and museums worldwide. On 23 and 24 May, a Leiden University interdisciplinary symposium will explore new perspectives as a basis for policies. Organising professors Carsten Stahn and Pieter ter Keurs…

In supermarkets, consumers are drowning in a sea of sustainability labels. Confusing for them, but also farmers can't see the forest for the trees. Obtaining these labels demands an enormous amount of time and effort. Berent Baris is investigating ways to simplify this process, benefiting both farmers…

After the summer, the SPSS statistics programme will be replaced by the new ‘R’ software for first year students. Hemmo Smit and Sjoerd Huisman, both lecturers in Methodology and Statistics, initiated this major change in the curriculum. That did not happen overnight.

The outreach and engagement platform BrainTrain consists of five enthusiastic students of the masters programme Forensic Family Science. As part of their project, the students visit high-schools to teach adolescents about the brain, make them experience that their own reality is not always the only…

It is becoming increasingly common to collect data from children and young people through digital means. The impact of this so-called ‘dataveillance’ on children, who are monitored from birth via smartphones and Fitbits, is great.

Panel Discussion