A surprising amount of life grows, crawls and flutters around Leiden University’s buildings. During the Biodiversity Challenge – from 30 April to 2 July – the campus will turn into a research site, and you’ll be the researcher. Grab your phone, take a look around and record what you see.

To understand the universe as a whole, simulations on a cosmic scale are required. An international team of astrophysicists, led by Leiden University, is today making one of the largest cosmological datasets ever available for free. It comprises more than 2.5 petabytes of simulation data.

Lecture, Tuesday Talk

Lecture

Conference

On Friday, June 28, 2024, emeritus professor Rudy B. Andeweg passed away. His passing marks the loss of an important figure within the field of political science, not only nationally, but internationally. Here we remember an outstanding researcher, inspiring teacher, capable administrator and an involved…

Arts and leisure, Arts and leisure

Arts and leisure, Arts and leisure

Lecture

Conference

Lecture

Film screening

Lecture, CIEL Seminars

Festival, Experimental Days

In this series the Vice-Dean and portfolio holder of education in the board of the Faculty of Archaeology will reflect on the state of education. Posts can range from shedding light on current national shifts in the university landscape to arguments as to why it’s important to be timely with designing…

The university bid farewell to its Rector Magnificus, Hester Bijl, on 13 January during the ‘Hester’s Highlights’ symposium.

In the course 'From Ceramics to Plastics: The Mediterranean in 12 objects' students were taught to work with 3D scanning technologies. One of the underlying reasons to introduce students to this technology was to teach them to reproduce objects. ‘More and more archaeological information is stored in…

Dr Amanda Henry has secured a prestigious Vici grant for her groundbreaking research project, Hominin FoodWays: Changing Diet and Food Processing Across Climate Frontiers. This five-year study, set to begin in September, aims to unravel the dietary adaptations of Eurasian hominins between 1.8 and 0.9…

Three alumni of our Master’s degree programme in Ancient History talk to us about how they found a job after graduation during the coronavirus pandemic. During the interview, Gabriël hung a huge board covered in post-it reminders behind his laptop, Molly was glad that the members of the selection committee…

When Dutch citizens request information under the Open Government Act (Woo), third parties can ask the public authority to withhold certain information. Leiden research reveals that the position of these third parties is unclear and accessing information is a difficult process.

On 15 December, Director of the MIVD General Jan Swillens, visited the Institute of Security and Global Affairs (ISGA) to give a lecture on international intelligence cooperation together with ISGA/NLDA researcher Pepijn Tuinier. This event, co-organised by the Intelligence and Security Group and the…

The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…

An e-coaching programme helps people with chronic kidney disease, particularly in areas that patients themselves want to work on. ‘A healthy lifestyle is important for patients with kidney disease: it can slow down the loss of kidney function and there will be fewer complications,’ Katja Cardol explains…

Hak, lawyer, international imagery law lecturer, and adjunct associate professor, talks about his PhD research on the use of images in international criminal prosecutions. He was a public prosecutor in Canada for over 30 years and dealt primarily with the prosecution of homicides and other major cri…

Some bacteria, it turns out, have proteins much like ours that organise the DNA in their cells. They just do it a bit differently. This is revealed by new research from biochemists at the Leiden Institute of Chemistry and the Max Planck Institute for Biology. The discovery helps us better understand…

Historic and iconic yet expensive and cold. It’s with mixed feelings that the university is leaving the Gravensteen building, which dates back to the 12th century. How was it to work and study in this former Leiden prison?

ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has made more than three trillion observations of about two billion stars and other cosmic objects. ‘Gaia is already the discovery machine of the decade,’ Leiden…

Yeast, alpacas, and antibodies. They may seem unrelated, but within the project of the Leiden iGEM students, they come together perfectly. For the international synthetic biology competition iGEM, the team is working on an innovative method to produce nanobodies—a special form of antibodies—using brewer’s…

‘Leiden is small, friendly and welcoming,’ says new first-year student Ayla Russel. Strong wind and heavy showers were forecast for the first in-person day of the EL CID on 16 August, which could easily have spoiled this impression. But fortunately the showers – apart from one – fell somewhere else,…

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.

In this series the Vice-Dean and portfolio holder of education in the board of the Faculty of Archaeology will reflect on the state of education. Posts can range from shedding light on current national shifts in the university landscape to arguments as to why it’s important to be timely with designing…

The slogan of the Faculty of Archaeology, ‘The Future of the Past starts at Leiden University’, might sound like empty marketing speak. But there is something to it. The past can teach us a lot about climate change and that could make us fear the worst for our future. Archaeologist Gerrit Dusseldorp…

On Tuesday 30 September 2025, PhD candidate Kathleen Brown will defend her dissertation 'Deception, Risk, and Evasion: The Politics of Sovereign Debt in Emerging Markets' in Leiden’s Academy Building. Her research sheds light on the hidden world of sovereign debt politics, revealing how governments…

Maria Vasile's ethnographic fieldwork in Turin reveals that volunteering and citizen engagement may not empower residents or allow them to shape their cities. Her analysis of urban gardens, food markets, and food aid initiatives calls for a broader perspective on urban peripheral areas and a shift away…

Israel was ordered to take steps to prevent acts of genocide in Gaza. Giulia Pinzauti, an expert on state conflicts and humanitarian law, explains the significance of the case, the specific details of the ruling and what we can expect to happen next.

A cannon, a sabre, guns: these Sri Lankan objects had been in the Rijksmuseum for centuries. In early December, they were returned to Sri Lanka. Associate Professor of Colonial History Alicia Schrikker led the research that formed the basis for the restitution and published a volume on the findings…

Can students solve cold cases? In the elective courses ‘Introduction to Cold Cases’ and ‘Cold Cases’, theory is combined with practice and students investigate actual police files. 'Hopefully, we can add a fresh perspective to investigations.'

Arts and leisure, Arts and leisure

Arts and leisure, Arts and leisure

Lecture

Lecture, Peace Histories Seminar Series

Arts and culture

Book Presentation | Studium Generale Lecture

Lecture, Ancient History Research Seminar

Film screening

Workshop

Workshop