In zoos, at festivals and in a mobile lab at the market: everywhere, Mariska Kret tries to understand human and animal emotions with her distinctive behavioural research. Now she has received the Mercator Sapiens Stimulus of €1 million for her efforts.

On the 19th of May 2020, our dear colleague and friend Professor Dr. Huib Ovaa has passed away from prostate cancer. Last summer Huib became ill, and in first instance it appeared that he had attracted a relatively harmless infectious disease. Unfortunately, it became soon apparent that he suffered…

The monthly research lunches have become a regular point on the Law School’s agenda and are steadily developing into somewhat of a tradition. During this lunch seminar series, all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers…

On 22 May, astronaut André Kuipers opened the new Mediterranean garden in the Hortus. With this water-efficient garden, the Hortus aims to offer inspiration for future- and climate-proof garden planting. Prefect Paul Keßler and scientific director of the Leiden Observatory Ignas Snellen also signed…

Expats in the Netherlands receive a much warmer reception than other migrants, Leiden University's Aniek Smit has discovered. ‘But municipalities need to pay more attention to the differences between expats and the effects of their presence on other residents.' PhD defence 25 January.

String theory has come under fire in recent years. Promises have been made that have not been lived up to. Leiden theoretical physicists have now for the first time used string theory to describe a physical phenomenon. Their discovery has been reported this week in 'Science'.

Niels Laurens recently started as the new Director of Operations at the Faculty of Archaeology as well as the Faculty of Governance and Global Affairs. We sat down with him for an interview on his background, his drive, and his take on archaeology. ‘My main drive is to enable researchers and lecturers…

Our motto is Praesidium Libertatis, or ‘bastion of liberty’. How did it come into existence, and in what way is Leiden University staying true to its meaning? Five questions about our motto.

She began as an IT professional but after 7 years in the business world, she devoted herself to an entirely different field: Islamic Theology. As co-founder of the Leiden Islam Academy, Fatiha Azzarhouni now works at Leiden University to increase understanding of Islam in Dutch society.

Three Leiden students who have made their dreams of studying abroad come true this year with the aid of a VSBfonds scholarship talk about their experiences.

Alumna Nadeshda Jayakody (25) from Australia graduated cum laude in Human Rights Law. What did she learn in Leiden that has been most useful? ‘I had to pretend that I already worked for an NGO.’

Every person on earth can read another person’s mind. Not in the way psychics or witches do, but by putting themselves in the shoes of others and considering how they perceive the world. This kind of empathy greatly facilitates communication and interaction. Max van Duijn studies this phenomenon to…

The tenth International Conference on Rapa Nui (Easter Island) and the Pacific will be a special edition with a focus on reconciliation. The fatal shooting in 1722 will be remembered, when the Dutch shot and killed ten Easter Islanders. The conference will be held in Leiden from 19 to 24 June.

The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…

This week more than 400 international students are starting their study programme in Leiden or The Hague. Why did they choose to study here? And what is the advice from their mentors?

Historians and experts in American studies from Leiden University are holding an online international conference about the arrival of the Pilgrims in America and the consequences for the indigenous societies. We asked four questions to two of its organisers, American Studies expert Joke Kardux and historian…

Anthonya Visser, Professor of German Language and Literature, was a PhD candidate in East Berlin just before the fall of the wall. The 'Wende' became the theme of her research. 'My focus is always strongly on the East German perspective.' On 7 November Visser will give a lecture in the Studium Generale…

On 20-21 June, the Society for Terrorism Research (STR) held its annual conference in Oslo. The Center for Research on Extremism (C-REX) of the University of Oslo led by Professor dr. Tore Bjørgo hosted one of the main academic conferences in the field of terrorism studies. The central theme was the…

In collaboration with the The Hague Historical Museum and photographer Dagmar van Weeghel, Leiden University Libraries (UBL) is the first to present a retrospective exhibition of the photographic oeuvre of Alexine Tinne (1835 – 1869). New research into her life and work is the reason for a reappraisal…

On 24 May, Iyiola Solanke, Jacques Delors Professor in EU Law at the University of Oxford's Faculty of Law and Fellow of Somerville College, gave the annual Europa Lecture organised by Europa Institute in Leiden Law School's historic Lorentz Lecture Hall. Her lecture was entitled ‘A decolonial approach…

Vivian Ng came back to Leiden last June to finally sign the walls of the Sweat Room. Graduated in 2020 during the pandemic, she missed out on this wonderful tradition, like so many others. While enjoying a day off in Leiden, we talked about her time as a student and her current job.

If you replace the standard hydrogen atoms in ice with a heavier variant, something odd happens. The volume occupied by the molecules increases by 0.1 per cent. Leiden chemist Jörg Meyer and his colleagues have created a theoretical model that describes this behaviour. Their research appeared on the…

From mandrill teeth to the microstructure of bones: archaeology alumna Simone Lemmers (31) is determined to reveal the past by studying old remains. Her curiosity has led to a very international career, also in the UK, where she witnessed the Brexit referendum.

Ecologist Sebastiaan Grosscurt became a successful wildlife journalist after graduating. But he decided to focus on science instead. He started his PhD research this year on the cumulative effect of light and noise pollution on animal behaviour.

Studying ancient materials and the way they were made can give us groundbreaking insights into the past. Not only that, the interplay between people and materials is highly relevant for society today, says Ann Brysbaert, Professor of Ancient Technologies, Crafts and Materials, at the Faculty of Archaeology.…

Cornelia Pabst is a PhD candidate at Leiden Observatory, whose research is based around primary data taken by instruments onboard SOFIA, an airplane-based observatory on which she has flown multiple times. Pabst explains how this airplane has impacted her research career and gives her views on the ever-present…

Professor Jojanneke van der Toorn has held the chair in LGBT workplace inclusion for five years. To celebrate, organised an international online conference on workplace inclusion, in cooperation with Workplace Pride that was hosted by the university on 20 and 21 May.

Two years ago, Amanda Henry joined the Faculty of Archaeology’s Archaeological Sciences department. She investigates diet and human evolution, with a specific focus on plant foods. ‘Most of the studies on the prehistoric diet focus on meat and hunting. This just didn’t make sense to me.’

Dr. Els de Busser, assistant professor and researcher at the Institute of Security and Global Affairs, as principal investigator of a consortia, has been awarded 1.45 million euros for a project called C-SIDe.

What does the future of quantum look like? Vedran Dunjko (Assistant professor at LIACS and LION) is co-founder of the applied quantum algorithms (aQa) leiden interdepartmental initiative research that will investigate this. They are part of the Quantum Delta NL consortium that was recently awarded substantial…

Sex without mutual consent is a criminal offence. The proposed new Dutch sexual offences law aims to better protect victims of sexually transgressive behaviour. But the key issue is this: the rules of evidence have not changed, so will victims actually benefit from the new legislation?

There is no such thing as the quintessential cybercriminal. It can be a Russian gang or the boy next door. What we do know is that cybercrime is an enduring societal problem that can affect every one of us. ‘We do not know enough about the criminals’, says Professor of Governing Cybercrime Rutger Le…

It's one of the big cosmology debates: the universe is expanding, but how fast exactly? Two available measurements yield different results. Leiden physicist David Harvey adapted an independent third measurement method, using the light warping properties of galaxies predicted by Einstein. He published…

Rychard Bouwens from the Leiden Observatory is the first scientist in the Netherlands to be assigned a Large Programme on the state-of-the-art ALMA telescope in Chile. With his team, he wants to use the unique capabilities of the billion-euro facility to investigate the build-up of massive galaxies…

From global warming to the decolonisation of knowledge. At the EuroScience Open Forum (ESOF) in Leiden over 500 speakers from 60 countries have come together to discuss the big themes of our times. Why have the delegates come?

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

How do you make lobbying and rhetoric both challenging and understandable for high school students? Professor Jaap de Jong found the answer in climate activist Greta Thunberg. Together with his colleague Arco Timmermans, he developed a digital guest lecture on how to present a convincing story.

Beads are among the oldest types of human artistic expression. Even so, the small ornaments have a bad status record regarding archaeological investigation. PhD candidate Mette Langbroek, usually at home studying early medieval beads, had the opportunity to work on a publication and exhibition on 5000…

We are pleased to invite paper proposals for the 1.5-day interdisciplinary workshop: “Who rules over migrants? Autocratic elements in migration policies”, that will take place at the University of Leiden on 14 and 15 November 2024.

After an extremely painful conclusion, the Western allies have left Afghanistan and the Taliban have regained supremacy. How will Afghanistan move forward, and what does the departure mean for global relations? Rob de Wijk, emeritus Professor of International Relations and Security, analyses the failure…

North Korea may seem like an isolated country but it has strong ties with African regimes. This alliance, which trades in arms despite international sanctions, is increasingly operating out of the liberal world order’s sight, PhD candidate Tycho van der Hoog warns.

European dependence on Russian gas, earthquake damage in Groningen and the changing climate: the call for an energy transition is getting louder. This transition will be accompanied by an increasing demand for 'new' raw materials. The Geo-Resources for the Future minor looks at exactly that developm…

Not all problems are easy to solve, but with enough bright minds, you make progress step by step. ‘The kind of problems I am interested in have been occupying mathematicians for over two millennia,’ says theoretical mathematician David Lilienfeldt. In September, he started at the Mathematical Institute…

Environmental scientists Stefano Cucurachi and Paul Behrens and astronomer Jorryt Matthee have received prizes during the New Year's reception of the Faculty of Science on Tuesday 8 January. In addition, Kavli Prize winner Ewine van Dishoeck announced a new award.

Dutch and foreign alumni from Leiden are the oil that keeps the wheels of Dutch-Asian relations moving smoothly. That’s one of the conclusions reached during the area day of the Dutch ambassadors in Asia and Oceania. All of them gathered in Leiden University’s Academy Building on 30 January.

The 2023 Digital Humanities Pilot Project Symposium and Digital Winter School took place, 30 Jan – 2 Feb 2023.

Doing a PhD can be challenging. Moving to a foreign country can be challenging too. PhD candidate Ilya Kokorin, who was born in a small town in Siberia, faced both, while at the same time having to overcome a number of additional challenges and build a future post-PhD.

On June 14th, Jeroen Duindam, Professor of History at the Faculty of Humanities, was awarded an exceptionally high distinction for his achievements in the field of Austrian history.

Quantum Rules lab van Leiden Universiteit biedt proefjes en experimenten voor middelbare scholieren om te leren over kwantum natuurkunde. Henk Buisman vertelt over het 5 jarige jubileum.

Seven years ago, Aris Politopoulos left Athens for a master’s programme at the Leiden Faculty of Archaeology. Now he has nearly finished his PhD dissertation. Furthermore, he has become a lecturer at the research group for the Archaeology of the Near East, and co-founded a foundation that deals with…