At the opening of the LDE-BRIN Academy on 31 October, the Bosscha Medal was awarded to Professor Taniawati Supali from the Department of Parasitology at the University of Indonesia. She receives the medal for her outstanding contribution to science and her working style, which is characterised by collaboration,…

Environmental scientist Alexander van Oudenhoven has been chosen as Discoverer of the year of the Faculty of Science. Vice Rector Magnificus Hester Bijl announced this during the faculty’s New Year’s Reception on 10 January. Biologist Changsheng Wu won the prize for best dissertation of 2016. Computer…

On Monday-Wednesday 10-12 June 2019, Jeroen Wolbers, Wout Broekema and Sanneke Kuipers represented the Institute of Security and Global Affairs (ISGA) at the fourth edition of the Northern European Conference on Emergency and Disaster Studies (NEEDS).

Members of LUCAS work in various buildings on the Witte Singel-Doelencomplex. The board and the secretariat are housed on the first floor of the P.N. van Eyckhof 3 (building 1165).

On Saturday 17 September Leiden will once again be the setting of the Night of Art and Knowledge. Come along and enjoy a fascinating mix of knowledge, theatre, music and art in the museums and academic locations such as the Hortus botanicus. Tickets are now on sale.

How do you combine the growth of wind energy with the protection of vulnerable seabirds? With her master’s thesis on this delicate balance, Sofie Hajer won the 2025 Unilever Research Prize. Her work provides new insights into how ecology and policy can strengthen each other.

It is still not easy to ‘come out’ about your sexual orientation or gender identity. On Coming Out Day (11 October), the issue was the focus of global attention. This year, instead of the traditional rainbow flag, the ‘progress pride flag’ flew above University buildings.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

The research group Intelligence and Security has been augmented with a team Policing Studies as part of the collaboration agreement with the Dutch National Police.

Forum essays provide a framework for intellectual exchange and debate about the role of diplomacy around a particular theme. The essays are argumentative contributions and are shorter than research articles.

The Faculties of Leiden University have developed several themes for research cooperation between Leiden University and its Indonesian partners.

The second authors' conference of the General Labour History of Africa (GLHA) project will be held from 10 to 12 December 2015 in Dar es Salaam, Tanzania.

Isabel van Vledder and Dieuwertje van der Vlugt, 2 astronomy students from Leiden University, have mapped the entire Milky Way galaxy in dwarf stars for the first time. This result is the most comprehensive model ever for the distribution of these stars. The findings appear in a new paper in Monthly…

Erik Kwakkel, researcher at the Faculty of Humanities, has found an extraordinary manuscript in the University Library’s extensive collection of medieval books. The book in question dates back to the first half of the eleventh century and is made entirely out of waste left over from the production of…

Topology is an emerging field within many scientific disciplines, even leading to a Physics Nobel Prize in 2016. Leiden physicist Marcello Caio and his colleagues have now discovered the existence of topological currents in analogy to electric currents. Publication in Nature Physics on January 14th.

Northern lights, stellar winds and exoplanets. This is what astronomer's PhD research revolved around. PhD candidate astronomer Rob Kavanagh developed mathematical models to better understand the interactions between exoplanets and stellar winds and to define features of exoplanets. He will receive…

The university is home to many pearls of research institutes that do not make the news every day. The Executive Board visited one such pearl, the Institute of Philosophy, on Tuesday 1 July. It resulted in an inspired conversation.

Just about everything that's known about Charles Darwin has already been said or written. Even so, Norbert Peeters – together with Tessa van Dijk – has managed to write an original book about the great English scholar. In the run-up to Darwin Day (12 February) he tells us about his new book.

For many students, a summer school abroad is a fun and useful way to spend the summer. This year, because of the travel restrictions, many summer schools were held online. There was no less interest from students though. What is it like to study in a different country, but digitally? Or to travel abroad…

Hermelijn Smits is Professor of Host-commensal Interactions and Immune Modulation. In this role she is increasing our current understanding of the way in which microbes and parasites shape our immune system to protect us from respiratory infections and chronic inflammatory diseases. In her inaugural…

One of them turned out to be two thousand years old. And older giant barrel sponges appear to have a faster rate of cell division, unlike us. They produce antibiotics and much, much more. Lina Bayona Maldonado studied how the differences in such factors as age or oceanic depth affect the production…

Not one but two openings: the minister who defended her plans and many who emphasised the importance of standing together with the arts and social sciences: the opening of academic year 2019-2020 in Leiden was not without event.

With cultural anthropology alumnus Jeroen Windmeijer, Leiden has added another writer to the fold. Following the success of his religious-historical thrillers, he has been able to call himself a full-time writer since 1 January 2019. ‘Not a true story but still true.’

This research project focuses on the extended documentation and investigation of these non-Austronesian (‘Papuan’) languages.

When we are around four years old we suddenly start to understand that other people think and that their view of the world is often different from our own. Researchers in Leiden and Leipzig have explored how that works. Publication in Nature Communications on 21 March.

A new way to decipher the light from distant worlds could give us unmistakable evidence of extraterrestrial photosynthesis, and maybe alien plants, finds astronomy author Colin Stuart in the New Scientist. In his article, he describes the work of the group led by Leiden astronomer Rob van Holstein.…

A team of Leiden astronomers has managed to calculate the first 100 million years of the history of the Oort cloud in its entirety. Until now, only parts of the history had been studied separately. The cloud, with roughly 100 billion comet-like objects, forms an enormous shell at the edge of our solar…

Astronomers from the Leiden Observatory and from the University of Rochester (in the US) have discovered that the planetary ring system that covered the very young sun-like star J1407 is actually of enormous proportions. In fact, it’s much larger and heavier than the ring system surrounding Saturn.…

This week, around 1,200 brand new students from 68 different countries are getting to know each other and their new student city. Orientation Week Leiden (OWL) got off to a good start on sunny Lammermarkt, which was packed with enthusiastic internationals.

On Prinsjesdag, 16 September 2025, the Faculty of Governance and Global Affairs (FGGA) opened the new faculty year with a reception at Wijnhaven. The opening was dedicated to the university’s lustrum theme: ‘Ahead of Time’.

It all started with demonstrations protesting about the death of George Floyd from police brutality in Minneapolis, but the Black Lives Matter protest is spreading like wildfire across the whole of the US. Every day, thousands of people are taking to the streets. We asked American Studies expert Sara…

Leiden University will be conferring three honorary doctorates in its special anniversary year. They will be awarded to Eliot Higgins, truth finder and founder of Bellingcat, Bonnie Honig, expert in feminist theory and legal theory, and Kelly Chibale, professor of organic chemistry, who works on prevention…

An international team led by Leiden astronomers has, after years of searching and defying the boundaries of a telescope, for the first time directly captured polarised light from an exoplanet. From this light they can deduct that a disk of dust and gas orbits the exoplanet. In this disk moons are possibly…

Three speakers, three fascinating science stories and a well-filled lecture hall. The Niko Tinbergen Lecture had a successful restart on 10 December 2019.

Kerstin Perez has reached the position of Assistant Professor of Particle Physics at the renowned Massachusetts Institute of Technology (MIT). For people from minority groups this is by no means a common experience. Perez will explain how improvements can be made at the annual Diversity and Inclusion…

Bringing together institutes and research groups, how do you do that? The Faculty of Science set up a joint research theme and financed three PhD positions. After four years, the profiling programme Endocannabinoids expires. ‘It really brought us together, and the collaborations remain.’

Symposium

We should mention differences in skin colour to our children because only then can we talk openly about prejudice and racism – and how to prevent them. This is what Professor Judi Mesman says in her book ‘Opgroeien in kleur’ (Growing up in Colour), which offers advice to parents. ‘Why is there only…

Speech Prosody 2024 includes several poster sessions, the description of which you can find below.

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

The research of the Mathematical Institute is driven by the curiosity of its members and has many internal and external connections. It can be characterised as fundamental but with an open attitude towards applications.

How do societies move forward with sustainable, effective and efficient management of Earth's water resources?

Lecture

Chemistry, which is what Hans Klis studied in Leiden, is not what one might expect of a general journalist. ‘I’m a late bloomer,’ he says, despite having spent four years as America correspondent and written a book on notorious school shootings by the tender age of 34.