The opening times of the Humanities buildings vary. The Lipsius building is opened during evenings as well, the other faculty buildings retain office hours.

By making two final network connections and entering a command, Martijn Ridderbos (Deputy Chairman of the Executive Board) , Geert de Snoo (Dean of the Faculty of Science) and Bart Hoogervorst (Head of Department Operations ICT Shared Service Centre) ceremonially booted up the university’s latest supercomputer,…

The renovation of Cluster Zuid (Van Eyckhof-Van Wijkplaats) is the third project in the development of the Humanities Campus. The circular dismantling of Cluster Zuid has started.

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

Simon Portegies Zwart, professor of Computational Astrophysics, uses computers to simulate the evolution of stars. We speak with him about his field and about the challenges of working with huge amounts of complex data.

In this thesis, two potential therapeutic targets for diabetic nephropathy were dentified and investigated. First, we show that glomerular clusterin is upregulated in diabetic nephropathy and demonstrated that recombinant clusterin protein can protect the podocytes against oxidative stress in vitro.…

Want to study abroad? Visit the Master’s Week of Leiden University and find which master's programme taught in Leiden or The Hague is right for you.

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!

Study information

A Dutch-Italian-German team of astronomers has observed a huge glow of radio emission around a cluster of thousands of galaxies. They combined data from thousands of LOFAR antennas that were focused for 18 nights on an area the size of four full moons. This is the first time astronomers have been able…

It has now been well established that shocks and turbulent motions in the intra-cluster medium (ICM) generated through cluster mergers can produce large-scale synchrotron emission.

An international team of researchers led by Leiden University (the Netherlands) has mapped nine gigantic collisions of galaxy clusters. The collisions took place seven billion years ago and could be observed because they accelerate particles to high speeds. It is the first time that collisions of such…

At the International Federation of Classification Societies (IFCS) conference 2022 in Porto, psychologists Tom Wilderjans, Jeffrey Durieux and Julian Rossbroich won the IFCS Cluster Benchmarking Challenge. They wrote the best paper on benchmarking and were awarded with an official plaque and book voucher…

Combining results from bibliometric analyses, a global sample of researcher opinions and case-study interviews, a new report reveals that although the benefits of open research data are well known, in practice, confusion remains within the researcher community around when and how to share research…

Study information

In July 2022, Leiden hosted the ESOF conference.

Astronomers have captured a new deep field of Pandora's Cluster (Abell 2744) with the James Webb Space Telescope. The images show never-before-seen details. The results are described in four scientific papers. Leiden astronomers Marijn Franx and Mariska Kriek collaborated on the study. 'This opens a…

De opening of the academisch year 2021-2022 took place on Monday 6 September 2021 in the Pieterskerk.

Join the OSCL community to share your experience and learn more from others at Leiden University

The opening of the academic year 2019-2020 took place on Monday 2 September 2019 in Pieterskerk Church.

Leiden University offers support in the different stages of your research lifecycle.

MOOCs are free academic courses, available online for a global audience. At LLInC we play a key role in supporting Leiden University teachers to create and launch MOOCs.

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)

On 10 October 2019, Janneke Vink defended her thesis 'The Open Society and Its Animals'. The doctoral research was supervised by Prof. P.B. Cliteur.

Open online education has become a highly popular method of education. The current project aims to further our knowledge of how open online courses can be best designed to be consistent with human learning mechanics and facilitate meaningful learning.

Extremely painful chronic cluster headaches – sometimes referred to as ‘suicide headaches’ – can be prevented by stimulating the occipital nerve in the back of the head, according to research conducted by Professor Emeritus of Neurology Michel Ferrari from Leiden University Medical Center (LUMC). The…

The opening of the academic year 2020-2021 took place on Monday 31 August 2020 in Pieterskerk Church.

Lecture

The construction work on the South Cluster is going ahead throughout the summer. See the photo's and the video below!

Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)

The intracluster medium (ICM) is a hot, tenuous and X-ray emitting gas that pervades galaxy clusters.

Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Leer meer over de Educatieve Master Primair Onderwijs tijdens de Online Master's Open Dag van de Universiteit Leiden.

Are you thinking about studying a master in Cultural Anthropology and Development Sociology in Leiden? Learn more and watch the introduction video.

Read more about the International Network Open Science & Scholarship Communities in our Vision and Mission statements.

Promotor: K. Kuijken, Co-Promotor: H. Hoekstra

Promotores: S.F. Portegies Zwart, E. M. Rossi

Three major cosmology-focused missions are planned for the next decade: the Euclid space telescope, the Vera C. Rubin Observatory in Chile, and the Nancy Grace Roman Space Telescope.

Through the clever use of two types of telescopes, a team of researchers has produced stunning images of clusters of galaxies. This not only produces beautiful images, but also provides more information about the enormous amounts of energy released around supermassive black holes in clusters. The astronomers,…

We are living in an information era where the amount of image and video data increases exponentially.

Promotor: A. Achúcarro Co-promotor: A. Boyarsky

The treasure houses of Leiden's University Library and Naturalis house wonderful historical collections with dried plants and botanical drawings. Tinde van Andel, extraordinary professor of History of botany and gardens, studies these collections.

On 14 May 2020, Pieter Rustenburg defended his thesis 'Een algemene normtheorie toegepast op open normen in het belastingrecht'. The doctoral research was supervised by Prof. A.O. Lubbers and Prof. J.L.M. Gribnau.

Promotor: Prof.dr. S.F. Portegies Zwart

The start of the renovation of Cluster Zuid was a long time coming, but the moment has finally arrived. On Wednesday 8 June, Dean Mark Rutgers, accompanied by the contractor Constructif, symbolically marked the start of the demolition and reconstruction works by demolishing part of the roof.

Hot astrophysical plasma is ubiquitous in the Universe, from comets in our Solar system to the largest scale structures -- the cosmic web filaments. These hot plasmas, with the temperature of a few millions of degrees, are often observed in the X-ray wavelength range.

In this thesis it is posed that the central object of preference discovery is a co-creative process in which the Other can be represented by a machine. It explores efficient methods to enhance introverted intuition using extraverted intuition's communication lines.