In a new Leiden-Delft-Erasmus Universities white paper, researchers and practitioners start the conversation that society desperately needs to have. ‘We’ve outsourced the visionary thinking to tech companies.’

On 21 June, our beloved colleague Joan van der Waals passed away after a long and rewarding life.

Facility, Organisation

A week after the kick-off of the Healthy University Let's Walk Week 2021, colleagues together already have made 7276 'ommetjes'. The Let's Walk Week was entirely devoted to getting and staying active for our personal, physical and mental health.

Research on Asian plants is his life's work. Now a crown is added to that: a plant from the coffee family bearing his name. Paul Kessler is LUF professor of botanical gardens and botany of South East Asia and Scientific Director of the Hortus botanicus. 'Completely unexpectedly, you get to see the results…

Language is omnipresent: when you talk, app or meet in Teams. Understanding how we communicate with one another and what communication does to us is essential. In her inaugural lecture, Nivja de Jong will call to redress the balance between the sciences and the humanities.

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

Thursday 15 January starts with a long journey and ends with an equally long working day full of current issues. Jasper visits the Mathematical Institute with the scientific directors of our faculty and attends a meeting on collaboration with the Ministry of defence.

How to take ownership of your career? To find out, students from ‘Design Your Career as a Climate Change Maker’ visited a farmer who has done just that. They learned from him that it’s never too late to start working on something you believe in.

A star does not just appear in the sky overnight. Its creation takes tens of thousands of years. Twenty years ago, astronomers took a picture of a star in its birth phase. The James Webb Space Telescope (JWST) could now capture that same star in much greater detail. This does not only provide beautiful…

A beautiful speech by vice-dean Bart de Smit, a mini-lecture on exoplanets and the presentation of three faculty awards. That's how we started the new year at the faculty. Together with colleagues and students, we raised our glasses to a new year full of great collaborations, science and education.

How can the Netherlands help secure a peaceful future for Israel and Palestine? At a recent meeting at the university, two remarkable speakers shared their perspectives: Somaya Bashir, a Palestinian woman living in Israel, and Palestinian journalist, Houssam Khadra, who fled Gaza over a decade ago.

Egyptologist Marleen De Meyer has been appointed the new Director of the Netherlands-Flemish Institute in Cairo (NVIC). Dr De Meyer has worked for the institute, which promotes Egyptian, Dutch and Flemish collaboration in the field of education and research, since 2016.

The Netherlands is embroiled in a complex nitrogen crisis. Berent Baris wants to use his NitroGenius game to demonstrate the complexity of this crisis.

Young Academy Leiden (YAL) will change its board this month and welcome seven new members. Outgoing chair Julia Cramer and incoming chair Rachel Plak look back at the highlights of the past year and discuss YAL’s plans for the coming period.

From receiving our salary to doing our shopping: we are completely dependent on commercial banks for all our payment transactions. But what happens if they collapse? In his inaugural lecture, Professor Bart Joosen calls for a rigorous change: ‘Put payment transactions for private clients under one…

Sharing scientific data, transferring money, or sending other sensitive information online: with cryptography, applications make sure your data does not fall into the wrong hands. Mathematician Thomas Attema (CWI/TNO/Leiden University) helps with this. For his PhD research, he developed a new technique…

Her office is a bit tucked away in a corner of the building, but her department is always buzzing with activity. Since May 2024, Renate Rijbroek has been our new Head of Facility Management. There was no slow start: ‘We are working hard towards the official opening in September.’

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.

Marco van Eijk is the new Educational Director of the Bachelor's Life Science and Technology (LST). Since 1 September he has been responsible for ensuring the quality of the programme. ‘LST is a unique programme and everyone has to keep working hard for that. That is my main task.’

What practical steps can we take to resolve cross-border claims to looted art and prevent illicit trafficking in cultural goods? That's what the European Parliament asked Leiden legal scholar Evelien Campfens. Her advice: develop a registration system, issue art with a ‘passport’ and set up a European…

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.

Giving all scientists at the Faculty the same opportunities, that’s what assistant professor Emily Strange stands for. As women face different challenges as scientists, RISE (Researchers in Science for Equality) provides a network and support group for women at the Faculty. Two months ago, Strange…

Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.

Moving an electron microscope of 2000 kg is a delicate challenge. The highly sensitive instrument needed to be moved to a new measurement hall, but even a tiny bump could damage it. After a few nerve-racking weeks of preparing the move and reinstalment, the researchers finally have a verdict: the instrument…

They confounded expectations and went to university anyway – as a woman of colour, a working-class student or refugee... Throughout the centuries the university has always welcomed pioneers. Students for whom going to university was not the obvious choice and who did not grow up in an academic environment.…

What is the environmental impact of the fish on our plates? And is an electric car really more sustainable when we include the generation of electricity? Jeroen Guinée maps the environmental impact of products and technologies. He analyses them from raw material to waste disposal. He was appointed Professor…

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. On March 13, 2026, he is on a knowledge mission to South America.

Pim Overgaauw, Director of Operations of the Mathematical Institute at Leiden University, is an avid bird watcher and photographer.

The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.

An important part of the Leiden Leadership Programme (LLP) is the practical assignment that students are given by a partner organisation. How does this benefit the organisations? Two Leiden partners talk about working with the students.

Lecture, NGL-lezing

Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

The person who cried out at Dam Square on Remembrance Day in 2010. For Michiel van der Wolf this marked the rise of a new phenomenon: that of ‘confused people’. Because since that Remembrance Day, the number of reports of ‘confused people’ in the Netherlands has increased rapidly in the statistics.…

Learn how to use Maileon’s editor and how to follow the editorial guidelines.

Student dean Romke Biagioni is committed to help students have an easygoing and pleasant time during their studies. She assists students with disabilities, looks for solutions to problems such as housing issues and counsels students with social or financial problems. For MSc student Computer Science…

Like many others, Ruurd Halbertsma has had a rollercoaster of a year. His museum, the National Museum of Antiquities (RMO), was closed for a long while because of the lockdown. Visitor numbers picked up again from September, but it the next few weeks will be tense now the hospitals are full again. Halbertsma:…

You need not be completely miserable in your current job to start a discussion about your professional development. And if internal career coaching still feels like too big a step, you can take a look at the university’s Career Platform instead.

AI is already widely being used in HR processes, but it’s unclear whether these applications contribute to fair and inclusive decision making. Leiden researcher Carlotta Rigotti is involved in BIAS, a big consortium research project that aims to provide answers and develop a new, trustworthy AI app…

The Dutch universities as a whole are lobbying for a 'normal' academic year from the end of August, where on-campus teaching will be possible. It's a view that Leiden University shares. Rector Hester Bijl talks about what teaching will be like then. She also looks back on a year of lockdown.

Revelations about unacceptable behaviour and sexual misconduct in the TV and sporting world have rekindled the public debate about a safe environment. At Leiden University we are coming together to prevent unacceptable behaviour and provide proper care and support for victims. According to President…

Sinéad Mulcahy recently started the Europaeum Scholars Programme, a two-year policy and leadership course for a group of thirty talented and committed PhD candidates from universities across Europe. She is already enthusiastic – both about the programme and her fellow scholars. ‘I would like to bring…

Commercial MRI systems cost millions of euros to purchase and require highly trained technicians to operate. Prof. Andrew Webb works on accessible MRI techniques that offer new opportunities in both developed and developing countries. Webb is a professor at the Radiology Department of the LUMC and,…

Seminar

Ionica Smeets is planning to give the prize money that she won with the Iris Medal, a prize for excellent science communication, to student projects.