An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…

How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

'We are very happy with this recognition! The great thing about this prize is that it celebrates team effort', Joanne Mouthaan responds to the Casimir Prize for the education project 'E-learning Suicide Prevention'. Colleague Maartje Schoorl calls the prize the icing on the cake of good education in…

In the ‘Educatips’ column, Psychology lecturers share their most important insights about teaching. This month: Ambra Brizi uses AI to encourage students to reflect and think more critically. ‘What are the limitations, and what is the potential of this technology?’

Recently Professor Joanita Vroom’s book Feeding the Byzantine City was published by the prominent academic publishing house Brepols. This volume is the fifth in a series called Medieval and Post-Medieval Mediterranean Archaeology, of which she is the editor. ‘This series aims to offer new perspectives…

Cristina Del Real, Assistant Professor in Cyber Crisis at the Institute of Security and Global Affairs, participated in the presentation of the Office of Science and Technology (OficinaC) of the Spanish Congress of Deputies (the Spanish Parliament). She is an expert on cyber security, one of the four…

A banker who puts making money second and makes a profit nonetheless. A farmer who stops ploughing and using insecticides but still has a good harvest. A new white paper by Leiden-Delft-Erasmus and Naturalis Biodiversity Center shows how the meeting of disciplines provides solutions to climate change…

The board of the Pastoor Schmeits Prize for Astronomy Foundation has awarded the Pastoor Schmeits Prize 2025 to two individuals: Yamila Miguel, affiliated to the Leiden Observatory, Leiden University and SRON, and to Else Starkenburg, affiliated to the Kapteyn Institute, University of Groningen. The…

Using all the software you need for lectures on your own laptop. From the new academic year, that will be the standard at our faculty. That is when the Bring Your Own Device pilot will start. The arrival of the software distribution platform brings many benefits. ‘Teaching will become more flexible…

The underwater world around present-day Indonesia has changed greatly in recent centuries as a result of human activity. University lecturer Johannes Müller has been awarded an NWO XS grant to map the history of the Indonesian ecosystems.

The train to The Hague holds no secrets for Jeroen Touwen anymore. Since October, the Vice-Dean of the Faculty of Humanities has been part of the board of Campus The Hague. One day a week, together with Jan Crijns (Professor of Criminal Law and, as of February 15, Vice-Dean of the Law Faculty), he oversees…

Michaël Peyrot has been appointed professor of Comparative Indo-European Linguistics at the Leiden University Centre for Linguistics with retroactive effect from 1 January. He is looking forward to passing on his love for the subject to a new generation of students.

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

Conference

Debate, Panel Discussion

Lecture, Book Launch

Debate

Lecture

Lecture, European Union Seminar

PhD defence

Lecture

Lecture

Lecture, COGLOSS lecture

Political scientists study topics that affect society, but their work often remains out of the spotlight. Not always: the research of Leiden political scientist Simon Otjes does have a visible impact.

Political scientists study topics that affect society, but their work often remains out of the spotlight. Not always: the research of Leiden political scientist Simon Otjes does have a visible impact.

Space telescope Euclid is capable of unravelling the secrets of the universe. That is what the images published by ESA today show, according to astronomers working with the telescope's data. The images exceed all expectations. Scientists within the Euclid consortium, including astronomers Henk Hoekstra…

The government, the people and the country were in desperate straits. This about sums up the state of affairs in the Disaster Year of 1672. It was 350 years ago, and to mark the occasion PhD candidate Roosje Peeters collaborated on a series of letters to and from a key political figure Johan de Witt,…

The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…

From one year to the next, face masks have started to appear in the environment. As the masks are discarded, they end up in the top soil, in sediment layers, and in refuse heaps. In a couple of generations archaeologists will study the layer that has already been labeled the Face Mask Horizon. Current…

Lecture

Lecture, LIMS seminar | Book Talk

Lecture, LUCL Colloquium - Series '24/'25

Lecture

PhD defence

Lecture

Lecture, Descriptive Linguistics Seminars

Lecture

How much energy and greenhouse gas emissions can Dutch homes save? Xining Yang uses Leiden as an example and shows with his research how enormous the impact can be. At least, if we work harder on becoming more sustainable. Based on the models he developed, Yang will receive his doctorate on 28 June.

Laura Kamsma (31) has been coordinating the International Office (IO) of FGGA for a few months now. An introduction to the ambitious Nijmegen native, who has set herself the goal of making the International Office more visible: 'Knock on our door if you have an internationalisation issue. Now you can…

Fear of repayment demands is causing people to forgo benefits and financial support, even when they are eligible. This was one of the finding of Olaf Simonse in his PhD research on financial stress and the non-use of social services. His proposal: 'Let the government take the initiative.'

Anti-immigration protests over asylum seekers receive extensive attention, but PhD candidate Clare Fenwick says it’s a vocal minority taking to the streets. 'The silent majority might also have migration concerns, like job losses due to labour migration, but these views seem to remain outside public…

She has had the idea for seven years, but now environmental scientist and conservation biologist Kat Stewart finally gets to work on it. She has been awarded a Vidi grant by NWO to find out how DNA from water can be used to shed light on invasive species and their impact on native populations.

For decades, the trade in pocketbooks prescribing how to be a good Muslim flourished in East Africa, but in recent years the number of books in circulation has been declining. University lecturer Annachiara Raia is the recipient of an Impact Explorer grant to revive this tradition, in cooperation with…

Each research institute has its own dynamic. The Executive Board is visiting our institutes to find out what they are up to. On 24 June, it was the turn of the Institute for History. ‘History helps us make sense the present, whether through family stories, local issues or world politics.’