Hans Slabbekoorn researches animal sounds and the effect of the noise we humans make on these animals. He is also committed to making his discipline more diverse.

Now that the South Cluster is reaching its concluding phase, we are looking ahead to the next building to be developed in the context of the Humanities Campus: Matthias de Vrieshof (working title: North Cluster).

What can we expect from the teacher coaches in the coming year? University lecturers Astrid Van Weyenberg and Maarten van Leeuwen talk about their plans.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Keynote speakers: Jennifer Gaynor (University at Buffalo SUNY) and Sue Peabody (Washington State University)

Does gravity work the same when you look at the largest scales in our universe? That’s what Leiden physicist Alessandra Silvestri will study with a 2 million euro ERC Consolidator grant. ‘We assume that it does, but we don’t actually know.’

All Political Science graduates have good reasons to be proud of themselves, having successfully completed their studies and having demonstrated considerable personal growth. This October, fifteen bachelor students can be extra proud: their theses were nominated for a thesis prize. In the class of 2023,…

The Faculty of Archaeology's own home-grown journal Inter-Section has released a new volume. Inter-Section offers students and PhD candidates the unique chance to publish in a peer-reviewed journal. The new volume focuses on the materials that shape our world.

After an intensive tender procedure, Leiden University and the Municipality of Oegstgeest have chosen Dura Vermeer for a new housing development with plenty of affordable homes in Nieuw Rhijngeest-Zuid. Dura Vermeer seeks to create a green and playful neighbourhood with welcoming public spaces as its…

Two Leiden Science researchers received an NWO-XS grant for their research. Both projects are highly promising, but also high-risk. Macrophages that trap bacteria and data storage made from 2D materials convinced the board of their potential.

During the corona pandemic, the Chinese government's digital communication with its citizens changed. Hard propaganda was increasingly replaced by ‘soft news’. PhD candidate Dechun Zhang mapped the developments in digital society.

Directing soil life and thereby influencing what grows above ground: that is the expertise of Leiden biologist Martijn Bezemer and his colleague Wim van der Putten (NIOO-KNAW). Their research on soil transplants has been nominated for the Huibregtsen Prize 2023. This prize goes to innovative research…

How can we enhance psychology students’ sense of responsibility for their own learning? Lecturer Anouk van der Weiden led a discussion on this pressing question during the Education Kick-Off on 28 February and explains why it’s so crucial to address it collectively.

An incredible quantity of archaeological reports are stored in digital archives. If you want to search for information in them, you have to do this manually. And that is a real chore. Archaeologist Alex Brandsen has now used deep learning, a form of artificial intelligence, to develop a search engine…

Using the James Webb Space Telescope, an international team of researchers, including Leiden Professor of Molecular Astrophysics Ewine van Dishoeck, has discovered a palette of hydrocarbons in a planet-forming disc around a young, low-mass star. The results confirm that discs around very lightweight…

In 2014 Russia entered Ukraine and occupied Crimea, and about two and a half years ago it began a large-scale invasion. For Ukraine, it’s a war. But Russia calls it a ‘special military operation’. Word choices of this kind affect how people look at issues. A Dutch Research Council (NWO) project led…

Recently, Dr Gül Aktürk Hauser took up the position as Assistant Professor at the department of Heritage and Society. Originally an architect, she got caught up in the study of historical vernacular buildings in northeastern Turkey. Now her focus lies on the impact of climate change on cultural heri…

On top of the Gorlaeus Building’s bike parking sits a hidden green surprise: Leiden’s largest rooftop garden. Since this academic year, the garden has been open to all students and staff.

Jasper Knoester is the dean of the Faculty of Science. How is he doing? 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.

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…

We want to be an engaged community where we feel heard and enjoy working together. But how do we have an open conversation about difficult topics?

On 8 December, in honour of Human Rights Week, Roeland Böcker gave a public lecture about his experiences as ambassador to the Council of Europe. Between 2017 and 2021, Roeland Böcker was the representative of the Netherlands in the Council of Europe.

From lectures by Robbert Dijkgraaf to a telescope on the ocean floor: during his double bachelor’s in Physics and Astronomy, Jelle Oonk discovered that the path to big cosmic answers sometimes runs through the smallest, hardest-to-catch particles—neutrinos.

More autocracies, less gender equality and growing anti-liberal sentiment. These are just some of the developments Professor Sarah Wolff will highlight in her inaugural lecture on the future of Europe. ‘The liberal world order as we know it in the West is at stake.’

Are maps objective or do they convey hidden messages that you would miss at first glance? A map is always a simplification of reality. Mapmakers reduce, distort and select. This allows the reader to be guided literally and figuratively. Leiden University Libraries (UBL) and the Museum Volkenkunde jointly…

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

Two research projects focused on democracy and citizen collectives have been awarded grants through the 2024 round of the National Science Agenda’s (NWA) ‘Onderzoek op Routes door Consortia (ORC)’. Each project will receive around €6.8 million to get started immediately.

The final design of the Aleida Nijland has been completed. The spaces in the new faculty building have been allocated to the future users, and several sessions have taken place in which staff and students were able to contribute ideas about the interior. With each step, the Aleida Nijland is taking…

Nitrogen professor Jan Willem Erisman and Ton Brouwer have released a new report presenting scenarios to actually meet the agricultural nitrogen targets for 2030. Their message to politicians in The Hague: ‘Look at this approach — it is possible.’

Life returned to something resembling normal after Covid but other crises soon took its place. These great challenges are also being felt at the University and our researchers are working on solutions. The nitrogen crisis, problems with young people’s services and an increasingly urgent climate crisis:…

On 25-26 October 2022, a select group of high-level participants gathered in Leiden to discuss research on Libya’s national reconciliation and access to justice, and to explore implications for policy and law.

The university campus at the Leiden Bio Science Park is flourishing. A new book tells the stories behind this remarkable metamorphosis.

The third and final participation session was held on 20 September; the evening was attended by local residents, business owners, students and other stakeholders.

On 15-16 June, Jos Gommans, Marieke Bloembergen, and Carolien Stolte will organize an international conference entitled “India in the Making of the Global Esoteric: 1200-2000”. The conference asks: why is it always India that has been imagined as a wonder, and what did that wonder mean, intellectually…

Protests against textbooks on trans persons in America and against a reading hour by drag queens in Rotterdam: it has been raining protests recently against people with a gender expression that does not match their birth sex. Why does this evoke such resistance? We asked Professor by special appointment…

Last year, investments were made in new research facilities within the Faculty of Humanities. It is now time for the next step: improving research infrastructure, funded by a COIn grant.

PhD candidate Joeri Schoenmakers works at the LIC and describes how his days revolve around new experiments, oxygen-free reactions and supervising students. The mix of freedom, variety and a close-knit team means he enjoys both his research and his teaching role every single day.

What role does the frontal lobe play in understanding sentences? Assistant professor Jurriaan Witteman has received a grant to replicate a leading study on this question. ‘As there is some doubt about the reliability of existing neuroimaging results, it’s important to replicate influential studies.’

How can we tell whether and how a prehistoric weapon was used? How can we better understand the dexterity and combat skills involved in Bronze Age spear fighting? A research team from Leiden and Göttingen University present a new approach to answering these questions: they simulated the actual fight…

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

From more natural beaches to research on how peace advances biodiversity. Two Leiden research projects have been awarded funding from the European Biodiversa+ partnership. These are grants for interdisciplinary research on restoring biodiversity.

Timo McGregor recently joined the Institute for History as a NWO-Veni research fellow. His research explores legal and political thought in early modern European empires, with a particular focus on mobility, political belonging, and enslavement. Below he introduces himself.

Professor of Computer Science Joost Batenburg has received half a million euros from the Dutch Research Council (NWO) to improve the conservation of historical paintings with 3D X-ray imaging.

Astronomer Joseph Callingham and his team have observed for the first time a clear signal from a giant burst from a star outside our solar system. This would have a devastating impact on any unfortunate planet orbiting the star.

Research

Lecture, Language and the Human Past