Climate change, biodiversity loss and environmental pollution are urgent problems that call for close collaboration between lawyers and scientists. Dr Hilde Woker and Dr Jason Rudall, both Assistant Professors at Leiden University, are investigating the important interface between law and science.

On Monday 23 January 2023 J.T.P. (Hans) de Bruijn passed away at the age of 91. Until 1995 he held the Chair of New Persian Language and Culture at Leiden University.

During the spring of 2021, a group of eight biology students from Leiden set out into the dunes in search of amphibians. Using DNA, they determined the geographic origin of the animals. And guess what? In many cases they discovered exotic populations of animals that do not naturally belong in The Netherlands.…

Many pharmaceutical companies no longer have their own lab and are working more closely with universities and start-ups of scientists. Professor of Science-Based Business Simcha Jong is researching how scientific ideas result in new drugs, including at the Leiden Bio Science Park (LBSP).

From 14 to 29 PhD candidates, seven actively involved faculties and, above all, lots of innovative interdisciplinary research, all with data science as the common denominator. The university’s Data Science Research Programme (DSO) has proven so successful that after five years on a start-up grant it…

“Very French and very impressive.” Those are the words drs. Isabelle van de Calseyde used to describe the reception at the French embassy residence in The Hague on 2 June 2015. There, she and dr. Sjef Houppermans were presented with an distinction for their remarkable services to the French language…

There is a crisis in the law concerning the accommodation of religious practice. The legal profession is demanding that the law be changed because it does not want religious institutions to have the 'right to discriminate'. The profession holds that evolving societal sexual norms can render lawful religious…

Researchers using NASA’s James Webb Space Telescope may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth. This is the best evidence to date for the existence of any rocky planet atmosphere outside our solar system.

The Leiden Papyrological Institute celebrated its eightieth birthday on Monday 19 January. Its collection of papyri – including paper, potsherds, pieces of wood and even lead – covers the period from 300 B.C. until after 800 A.D. and is entirely of Egyptian origin. The institute’s anniversary is being…

The Dick Stufkens Prize 2019 for the best PhD thesis of the Holland Research School of Molecular Chemistry (HRSMC) will be awarded to Thom Hersbach. In his thesis, Hersbach presents a thorough analysis of cathodic corrosion. His comprehensive research, on which he graduated with the distinction cum…

Streptomycetes are similar to moulds, but these bacteria live in the soil. They are very popular in biotechnology because they produce a great many antibiotics and enzymes. Gilles van Wezel will be using his Vici subsidy to study ways of increasing their production.

The story of Tutankhamun, the Egyptian pharaoh, is world famous. But did you know that the Ancient Egyptians mummified not only people but animals too? The National Museum of Antiquities in Leiden recently put a bunch of animal mummies through a CT scanner. This was in collaboration with Canon Netherlands…

Elise Sarton is using her inaugural lecture to give her field of anaesthesiology a chance to take the limelight for a change.

After two years of corona restrictions, it was ‘back to normal’ in 2022. Migration, elections, the history of slavery, Russia, and Ukraine were much-discussed topics. We compiled an overview of the most-read news items and other events of the past year.

A very special occasion for the Dual PhD Centre. Vasileios P. Karakasis is the 25th PhD candidate in the history of the Dual PhD Centre, combining work with PhD research at Leiden University. Karakasis will defend his dissertation: ‘Adding Fuel to the Conflict’ on 15 October. In this interview, he discusses…

Fourteen promising researchers from Leiden University have been given the opportunity to realise their research plans for the coming years thanks to a Veni grant from the NWO. This year, these subsidies have been granted to studies of the influence of noise on the great tit, the conditions necessary…

The 2022 Nobel Prize in Literature has been awarded to French writer Annie Ernaux (1940). In an explanation, the Swedish Academy praises Ernaux 'for the courage and clinical acuity with which she uncovers the roots, estrangements and collective restraints of personal memory'.

In late May 2019, the Food citizens? team traveled to Poland for a project meeting and team outing. This was made possible by the European Research Council’s support and facilitated networks and knowledge-generation.

During the summer, staff and students of the Faculty of Archaeology travel to all parts of the world, initiating or joining fieldwork projects. Read some of our students' stories here!

By analysing the metabolism using big data techniques, we can identify health risks at an earlier stage. Thomas Hankemeier, professor of Analytical Biosciences at the Leiden Academic Centre for Drug Research, explains how that works.

Her specialist field is molecular astrophysics, and she is the most quoted scholar in her field. In this, the year of astronomy, she is the ideal person to give the Dies lecture at the university with the world's oldest astronomy institute; it goes without saying that the lecture will be on the newest…

The Dies Natalis for alumni on 11 February was an online event. Almost 1,000 alumni tuned in to Bastiaan Rijpkema’s interview with Annetje Ottow, who had then been President of Leiden University’s Executive Board for all of three days. Alumni are part of her portfolio on the Executive Board.

Mexico is currently facing an unprecedented social and political crisis, with expanding criminal and political violence, rampant impunity and crumbling political institutions. Next to the daily report of anonymous victims of violence, last summer in Central Mexico at least 15 citizens were executed…

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…

It is the largest database for space ice yet: The Leiden Ice Database for Astrochemistry: LIDA. Created by astrophysicists at the Leiden Observatory, LIDA includes not only hundreds of measurement data, but also software to examine astronomical observations and prepare new measurements with the James…

The war between Russia and Ukraine, the conflict in Gaza or the global rise of the far-right: topics that stir up emotions but are also regularly discussed in classes at Political Science. Moreover, with a diverse group of students, there is a great diversity of life experiences, backgrounds and opinions.…

Leiden University celebrated its 444th anniversary with a historical procession on 8 February. It celebrated this year’s Dies Natalis in time-honoured fashion with a ceremony in the Pieterskerk, but broke with tradition by sending professors out to primary schools.

Having mostly ignored the gains Dutch traders, investors and firms attained from serving the French, English and Iberian empires, debate in the Netherlands now demands a re-evaluation of Dutch colonial responsibilities. By recovering knowledge of these gains, this project will measure the wealth obtained…

Professor Ken Meier is one of the most prominent researchers of the world in the field of Public Administration. Meier holds appointments as a professor of Public Administration at Cardiff School of Business (Wales), a professor of bureaucracy and democracy at Leiden University (The Netherlands), research…

Dutch and international students brandishing bows and arrows fire at each other on the fields of the University Sports Centre on 11 May. This is the aim – not the shooting each other, but the act of getting together.

On 27-29 June, 2023, Leiden University's Institute for History will host a summer school on Global History in the 2020s, in collaboration with the Huizinga Institute-Research School for Cultural History, the Research School Political History, and the Flying University of Transnational Humanities (FUTH).…

During the New Year’s Reception on 11 January 2022, the Pieter de la Court Medal was awarded to two students of the Faculty of Social and Behavioural Sciences: Orestes Kyrgiakis and Claire van den Helder. They tell us about the causes they fight for and what it means for the University to be better.…

Enya Seguin is an idealist. This 22-year-old alumna of Leiden University College in The Hague wants to make it possible for patients in Africa to have access to doctors anywhere in the world via an app. She is not deterred by the many problems and pitfalls she meets along the way.

Many of our staff and students have won prizes over the past year. Others have been awarded a subsidy, or, because of their eminence in their field, they have been appointed member of an academic society or have taken on a position in the community. Reasons enough to be proud of them and to include…

Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

The EL CID introduction period is mostly online this year. But all first-years get to come to Leiden for a day for a taste of studying and student life. We came to have a look on Wednesday 12 August.

This section provides an overview of online tools for the study of the medieval Low Countries. The websites linked down below are often times both available in Dutch and English.

The Joan van der Waals colloquium is an ongoing bi-weekly lecture series.

Lecture

PhD defence

Lecture

Lecture

Symposium

PhD defence

Stadswandeling

Lecture

The FOI project has a number of topics it aims to investigate. These are: State, Economy, Culture and Papyri. You will find links to bibliographies on this page.

Debate