The first eLaw Conference held at Leiden University was a success and fostered timely discussions on the legal challenges and opportunities presented by digital technologies.

Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.

On Tuesday a few dozen students and staff from Leiden University protested on the square in front of the Lipsius building against the classroom scanners that have been installed in buildings and lecture halls. They are demanding that the scanners be removed.

Governments worldwide invest huge sums in their digital services and data strategies. Efficiency and effectiveness are key. But these are not achieved for some people at least, says Professor of Public Policy Sarah Giest. This makes the intended digital inclusion far from inclusive, as she will explain…

Amidst the lathes and welding machines of the Fine Mechanics Department, Emiel Wiegers is working concentratedly on a metal cylinder. He and his colleagues design and construct components for researchers' set-ups. ‘We are a bunch of inventors who enjoy helping the researchers in our Faculty.’

Op de dag van de duurzaamheid van 10 oktober startte de 'Billiecup' pre-pilot op de Faculteit der Rechtsgeleerdheid. Aanwezig waren 'plastic soup surfer' Merijn Tinga, Bart Hemmes van het Leiden University Green Office (LUGO) en Esther Kentin, docent bij instituut Metajuridica & projectleider Leiden…

Using mathematics to determine whether scientific results are significant or not. Peter Grünwald, full professor of Statistical Learning at the Mathematical Institute (MI) and senior researcher in the Machine Learning group of Centrum Wiskunde & Informatica (CWI), has been awarded an ERC Advanced Grant…

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

Doing your taxes, Netflixing or driving a car: more and more daily activities are supported by computer applications. It is challenging and expensive to test software thoroughly, leading to errors in most applications. PhD candidate Benjamin Lion made a mathematical framework to deal with this problem.…

Publishing an article as early as during your studies. Master's students of Nanne Timmer and Astrid Weyenberg are doing it. In the new course 'Leiden Graduate Journal Culture and Society' they are creating an academic journal.

The decolonisation war in Indonesia was violent partly because the Dutch military operated on the conviction that ‘an uprising had to be forcibly suppressed.’ This what historian Christiaan Harinck from the KITLV discovered in his PhD research.

Tessa Verhoef from the Leiden Institute of Advanced Computer Science and Eduard Fosch-Villaronga from eLaw- Center for Law and Digital Technologies have written an article on how affective computing should be inclusive, diverse, and work for everyone.

X-ray and CT scanners are widely used devices in research, diagnostics and the industrial sector. And yet they are not nearly as fast and accurate as we would like. Mathé Zeegers is researching the newest technique in the field at the Centre for Mathematics and Computer Science: spectral X-ray imaging.…

The AI chatbot ChatGPT has a clear left-liberal bias when filling in the Stemwijzer voting advice application. This was discovered by master's student Merel van den Broek during an assignment for the Machine Learning for Natural Language Processing course.

Willem Jespers started his position as Assistant Professor in the group of Prof. G.J.P. van Westen on June 1st, a short introduction below:

On 2 April 2025, eLaw – Center for Law and Digital Technologies of Leiden University will celebrate its 40th anniversary as the oldest digital law department in the Netherlands and the second in Europe. To mark the occasion, eLaw will host a conference with prominent speakers from academia and public…

In studies, it is an old acquaintance, the p-value. But mathematician Peter Grünwald wants to get rid of it. The p-value is too susceptible to fraud and can lead to a distorted picture of reality and chance. That is why he wants to work with the e-value. De Volkskrant spoke to him about it.

Researchers found a way to run programmes that should be impossible to carry out on an imperfect quantum computer. Such programmes are very computationally demanding and the quantum computers that currently exist are not yet up to that task. Unless you use a clever trick, Simon Marshall and Vedran Dunjko…

Concrete pillars without a roof, windows without glass, storeys without walls. It’s clearly evident that the South Cluster is being dismantled. Take a look at the photos!

Dr Alex Geurds was elected as a Fellow for the Society of Antiquaries, a prestigious and old educational charity based in London. Established in 1707, the society aims at the encouragement and advancement of the study and knowledge of the antiquities.

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…

Happy Holidays from LACDR

Since 1 February 2016, Paul van Trigt is postdoctoral researcher in the project Rethinking Disability: the Impact of the International Year of Disabled Persons (1981) in Global Perspective at the Institute for History.

The discovery of a planet far too large for its sun defies models about the formation of solar systems and planets. In a paper in Science, researchers, including Yamila Miguel of Leiden Observatory, report the discovery of a planet more than 13 times heavier than Earth orbiting the ultracool dwarf star…

Korrie Korevaart, a former director and lecturer in Dutch language and culture at Leiden University, has been made a member of the Order of Orange-Nassau. Korevaart, who has retired but is still a guest member of staff at the university, has received the honour for her work at the Faculty of Humanities…

Starting 1 January 2023, Matthias Haentjens has been appointed as Professor of Civil Law at Leiden University. His expertise lies in the field of property law, insolvency law, and private international law.

Professor Sjef Barbiers is leaving his job as scientific director of LUCL for the position of scientific director of the Institute for the Dutch Language (INT) from 1 September.

A team of European astronomers has found a silicate-based weather system on a cloudy gas planet around the star WASP-107. It is the first time astronomers have found silicate clouds and rain. They also conclude that temperatures deeper in the atmosphere are rising rapidly. 'The presence of clouds has…

Ramsey Albers wins Political Science Master’s Thesis Prize 2022

The nominees for the IRO thesis prize 2023 and the Prof. Dr. J.Th.J. van den Berg-prijs 2023. Who wrote the best bachelor theses in Political Science?

Vincent van Heuven passed away unexpectedly on Friday 6 February 2026 at the age of 76 at his home in Kûbaard (Friesland), the Netherlands.

To mark Leiden University’s 450th anniversary, this exhibition pairs historic photographs with contemporary research. Seven ‘Then & Now’ diptychs show how the Institute of Physics blends a rich past with cutting‑edge science.

ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has made more than three trillion observations of about two billion stars and other cosmic objects. ‘Gaia is already the discovery machine of the decade,’ Leiden…

LIACS scholars Thomas Bäck and Hao Wang will be the new Editors-in-Chief of the Evolutionary Computation Journal from November 1. Published by MIT Press since its foundation in 1993, the journal stands as a keystone in the field, providing a global platform for researchers exploring the workings of…

Carlotta Rigotti, postdoctoral researcher at eLaw, has just published her new monograph, The Regulation of Sex Robots: Gender and Sexuality in the Era of Artificial Intelligence.

On 7 and 8 March 2024, SciencesPo Law School hosted the ‘Legal Technologies and the Bodies’ conference, where Carlotta Rigotti, postdoctoral researcher focusing on law, gender, and technology at eLaw, presented her working paper about legal perspectives on sex robots and consent.

‘Jelena Prokic, university lecturer and researcher at the Leiden University Centre for Digital Humanities, will be preparing students for the challenges and opportunities of the digital world. In September, six modules will start on subjects such as statistics and digitally searching through texts.…

A staggering 6.5 billion chicks are killed worldwide every year. These are generally male chicks that are of no economic value. In Ovo has developed technology that can quickly determine the sex of a chick, to ensure that only female chicks are hatched. The first 150,000 chicks have now hatched in this…

The interdisciplinary AI & Society minor of Leiden University brings together students and lecturers from a wide range of disciplines. Together they look at the impact of AI on society. Students are enthusiastic about this merging of worlds.

This month, the new digital communication code of conduct came into force. Why did this code need to be in place? And what do we gain from it as a faculty? Dean Mark Rutgers and vice-dean Mirjam de Baar explain.

Effectively treating a severe case of pneumonia is often challenging. Identifying the pathogen behind it can be difficult. PhD candidate Ilona den Hartog tried something new: ‘We searched for answers in substances our own body produces.’ PhD defence on 17 September.

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

Computer scientist Matthijs van Leeuwen is one of four science faculty members who obtained the Senior Qualification in Education in 2021. What was that like and what drives him? ‘In my own education I would have liked to see more attention paid to the responsibility that machine learning and data mining…