How can we promote more durable solutions to protracted refugee situations and which roles can connectivity and mobility of displaced people play to improve protection and resilience?

What are the key technical, social, regulatory, economic, and ethical considerations for scaling up ocean-based Carbon Dioxide Removal (CDR) approaches, and what integrated assessment frameworks and governance structures are needed to facilitate their implementation at scale?

Born in Europe roughly 100 years ago, quantum physics brought forth a veritable technological revolution through semiconductors, lasers, fibre optics, and many other technologies that are today ubiquitous in our lives. Now, during the second quantum revolution, Europe can take the lead once more in…

Leiden is a real student city! We would love to tell you more about the student life as an Advanced Master student International Children's Rights.

The student life of Leiden is exciting! Join for example a study association to enhance your study experience in Leiden and make new connections.

Leiden is a real student city and has everything you’ll need to turn your time as a student into the time of your life. Read more about student life and study associations.

Read more information about Leiden, the student city. The city has everything you’ll need to turn your time as a student into the time of your life!

Leiden is a real student city and has everything you’ll need to turn your time as a student into the time of your life. Read more about student life in Leiden.

What is our place in the Universe? How did stars, planets, and galaxies form? Could life exist beyond Earth? The minor Our Universe invites you on a journey through space, time, and society. You will explore the scientific story of modern astronomy, the origins of life, and the role of the cosmos in…

In February 2026, Leiden University’s new Sport Centre opened on a prominent new site directly on the Campusplein. Its relocation brings sport visibly into the heart of campus life, with the outdoor fields seamlessly connected to the building. Substantially larger than its predecessor, the centre offers…

The programme is structured along learning lines on environmental sustainability, governance and skills.

On this page, you will find the recordings of the Tuesday Talks since April 2025. Recordings of the precursor to the Tuesday Talks, This Week’s Discoveries, are also available here.

Lecture

Back in 2008, Jason Laffoon moved from Chicago to Leiden. He came to join the Faculty of Archaeology’s Caribbean research group as a PhD candidate. Now he is an assistant professor, bridging departments through his innovative research methods. ‘I focus both on the archaeology of the Americas, as well…

The Belgian elections are over. Now it is up to the formateur to form a cabinet, but that is difficult. Fauke Deceuninck, program leader of Politics and Governance at the Center for Professional Learning, explains to Speechmakers why that is.

Alastair Reed, Assistant professor at the Institute of Security and Global Affairs (ISGA) is interviewed by Devex, the media platform for the global development community.

Annually, the Dutch Palynologische Kring invites nominations for the Florschütz Award for best MSc thesis in Palynology and Palaeobotany. This year, the thesis of Archaeology alumna Oda Nuij was deemed to be the best one. Oda was surprised to hear she won, since she was not sure that the thesis would…

To be eligible for Bio-Pharmaceutical Sciences and Education at Leiden University, you must meet the following admission requirements.

To be eligible for Bio-Pharmaceutical Sciences at Leiden University, you must meet the following admission requirements.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.

Jos F. Brosschot has been appointed as a professor by special appointment on the chair ‘psychophysiological mechanisms of stress in daily life’. This chair has been created by the Foundation for Research into Psychosocial Stress.

This year, an NWO PhD in the Humanities grant went to Mink van IJzendoorn, enabling him to investigate the disappearance of amphorae. ‘We take means of packaging and shipment for granted, but they are deeply ingrained in our daily lives; they are crucial.’

Middle East Studies Lecture

In the beginning of December 2016 PhD candidate Catarina Guzzo Falci was awarded a scholarship for a collections study by Musée du quai Branly. The Musée du quai Branly has implemented this scholarship programme to document its collections.

Last week, Joris Larik, Assistant Professor of Comparative, EU and International Law, was mentioned in an article by Euronews about the SWIFT ban.

Leiden researchers Arko Ghosh and Enea Ceolini analysed the usage data of hundreds of mobile phones and discovered that our body has rhythms ranging between 7 and 52 days. These cycles influence how we behave. Their research resulted in an article in npj Digital Medicine journal, a Nature Portfolio…

Industrial Ecology is the science of sustainability, a discipline which is vital to solving today’s environmental problems. In this two-year MSc programme, we are committed to training students who will go on to play instrumental roles in addressing and positively impacting the world’s sustainability…

Governance of Sustainability is a two-year programme, worth 120 European Credit Transfer System points (ECTS).

Learning a programming language is challenging. Even one of the first –but crucial– concepts to learn, variables, is hard to grasp. Variables can represent different roles and functions within a code and need to be named appropriately to support code comprehension and debugging.

A team of three students affiliated with Leiden University is shedding new light on the lives, diets, health, and mobility of individuals buried at the historic church site in Koudekerke, Zeeland. The project, a collaboration with the Walcherse Archeologische Dienst and funded by the Municipality of…

Leiden researchers Arjen Doelman, Tom Huizinga and Manfred Wuhrer have been awarded ERC Synergy Grants worth millions of euros for their research on preventing tipping points being reached in ecosystems and helping eradicate rheumatism.

The first settlers of the Caribbean have long been regarded as bands of highly mobile groups who subsisted exclusively by hunting, gathering, and fishing. In recent years, however, there has been increasing evidence for the cultivation of domesticated plants by early groups and a lower degree of mobility…

Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.

The leading medical journal The Lancet has withdrawn a controversial publication on the antimalarial drug hydroxychloroquine. The reason for this is the open letter to The Lancet that over a hundred scientists signed, including Richard Gill, Leiden Professor emeritus of Mathematical statistics.

Americans more often donate funds to a presidential candidate if the campaign is backed by financiers from different, recognised social groups. This is the conclusion of Leiden researcher Vincent Traag in an article in Plos One published on 14 April.

PhD defence

Workshop

Workshop