The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…

Professor Ariadne Schmidt and Associate Professor Arie van Steensel (University of Groningen) have produced A Companion to Medieval and Early Modern Leiden, the first English-language history of Leiden. Mayor Peter Heijkoop received the first copy.

There are two vacant seats available in the upcoming interim elections for the Faculty Council. What can prospective council members expect? Professor Jos Schaeken, a member of the Faculty Council, explains in more detail.

This year marks the 25th anniversary of the founding of the Faculty of Archaeology which naturally leads to questions about its past. Part of the answer might be hidden in the archival photo negatives that paint a lively portrait of archaeological research taking place more than half a century ago.

Four students of the Faculty of Archaeology investigated how the current and past inhabitants of the Dutch province of South Holland deal with water. Their findings now feature in an exhibition that can now be visited in the Van Steenis building’s Reuvenshal.

A wind turbine near your home? The energy transition is not seen as just by all parties concerned. It’s essential to involve local residents, argues Emma ter Mors, social psychologist. As a researcher, she focuses on identifying factors that influence public acceptance of energy technologies. Isn't…

The rule of law is crumbling in the Netherlands, lawyer Lilian Gonçalves-Ho Kang You warned in her Cleveringa Lecture.

Children who lost their fathers in early modern England ran the risk of being sold to the highest bidder. Although Shakespeare wrote about it in his plays, the practice disappeared from collective memory for a long time. University lecturer Lotte Fikkers is bringing it back to light in a new Vidi research…

The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’

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…

When general laws and regulations no longer fit individual situations, can customisation offer a solution? In the special issue ‘Maatwerk' (customisation) of Boom Bestuurskunde, researchers have tackled the questions that customisation brings to public organisations. The symposium ‘Maatwerk onder maatschappelijke…

On Sunday, November 9 2025, Prof. dr. Sarah Cramsey presented a film at the “Eastern Neighbors” Film Festival in The Hague.

Workshop brings multidisciplinary experts together to produce interdisciplinary outcomes on the EU’s Proposal for a Regulation to prevent and combat child sexual abuse.

On the 30th of December, we received the sad message that our Kenyan colleague, Kennedy Kaminju Kariuki died on December 28, 2023 in the NW hospital in Nairobi at the age of 35 years from organ and heart failure. Kennedy was a PhD candidate at the CML, Leiden University.

Workshop & exhibition

Lecture, Book presentation

Bringing together chemists and physicists to thoroughly investigate how electrochemical processes work on the smallest scale. That is the goal of the new Advanced Nano-electrochemistry Institute of the Netherlands, or ANION for short. The consortium receives a Gravitation funding of 23.6 million euros…

From now on, all information and updates about the closure of the Huygens Building will be shared in this live blog on the Faculty staff website.

Leiden archaeologists have been digging into the municipality of Oss’s past for 50 years now and students have gained their first experience of fieldwork there. What is the result of half a century of research and teaching? Archaeologist Richard Jansen and his students take us to the largest excavation…

On the 6th and 7th of September 2023, the Leiden Academic Centre for Drug Research (LACDR) organized the Leiden Bio-AFM workshop in cooperation with Bruker Nano GmbH (Germany) and Bruker Nederland BV. The organization of this event was led by the Medical Systems Biophysics and Bioengineering group (Alireza…