What causes depression in a child and how can they get over it? Leiden Professor of Psychology Bernet Elzinga and behavioural scientist Carine Kielstra recently hosted a webinar on the subject of depression in teenagers. The level of interest was overwhelming.

Festival

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.

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

An impressive 12 researchers from Leiden University have been awarded an 800,000-euro grant by the Dutch Research Council (NWO). This will enable them to develop their own line of research over the next five years.

Professor Bussemaker and Professor Koenders draw lessons from the handling of the current corona crisis. In a blended guest lecture with some 60 students in Wijnhaven and some 250 online participants, they entered into a discussion led by Willemijn Aerdts. The guest lecture took place on May 25.

Theo van den Doel received his PhD in January for his research on veteran support. This showed that for long the government learned little from past missions. He has since presented his dissertation to the Lower House of Representatives, and the Minister for Defence, Kajsa Ollongren, has responded to…

We are saddened by the news of the unexpected passing of prof.dr. Pieter Sjoerd van Koningsveld on 28 July 2021.

On April 14, 2025, Dr. Hans Petschar, the recently-retired Director of the Bildarchiv und Grafiksammlung at the Austrian National Library in Vienna, delivered the Sixth Annual Austrian Studies Lecture 'Austria’s Present Past: A visual journey through Austrian history 1925 – 2025'.

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…

On Monday 27 October, Jasper goes on safari in the Van Steenis building. And will he manage to stay dry more often than he gets soaked cycling between meetings? You’ll find out – along with the rest of Jasper’s day – in this column.

At the start of his PhD, intelligence analyst William Lippert didn’t yet know what to expect. Little had been written on the subject. Three years later, he is sure: conventional arms control agreements promote peace.

Dialysis patients experience a range of physical and mental symptoms that interact and influence each otherIn her doctoral research, psychologist Judith Tommel wanted to find the optimum approach to help these dialysis patients improve their quality of life. ‘We need to make sure we avoid excluding…

Simulations of galaxy formation provide much more information about galaxies than a telescope. Simulations have been improving significantly in recent years. Astronomer Evgenii Chaikin made such a significant contribution to this field that he graduated with honours on February 27th.

The Legal Post-graduate Training (JPAO) of Leiden Law School changed its name to Leiden Law Academy on 1 May 2023. A new name for the educational programme for professionals and the place to be for events and conferences. What changes will be made and what does the team hope to achieve in the coming…

Delve into the depths of black hole imaging as anthropologist Rodrigo Ochigame unveils the human decisions shaping its portrayal. Explore four alternative color choices at the 'Towards the Black Hole' exhibit, now showing at Rijksmuseum Boerhaave, Leiden.

Various meetings will be held over the next few weeks to discuss organisational development at Leiden University. On the agenda are a vision of organisation and management, an exploration of the central services organisation and a teaching logistics programme.

Would you like to organise a session during the biggest multidisciplinary event in Europe - the EuroScience Open Forum (ESOF) conference - to be held in Leiden from 13 to 16 July 2022? If so, send us your proposal! Archaeologist Corinne Hofman is one of the driving forces behind the conference and…

Collaboration is worthwhile. A joint LUMC and Leiden Law School project has received €142,500 from the Dutch Research Council (NWO). This grant will advance research into the law and ethics of regenerative medicine.

After sixteen years in various roles, Arianne Pen knew straight away: 'This is my chance.' As the new head of department at SOSZ, she uses her extensive network and experience to improve educational processes – and to give the support staff the recognition they deserve.

As well as offering students a first-rate education, Leiden University provides a wide range of training for professionals, so they can be lifelong learners. And that is not just of value to participants. ‘As a university, you start a dialogue with society to achieve better knowledge together.’

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.

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.

Eva Loeve (22), a fourth-year student of Cultural Anthropology, worked for five months at Centre for Research on Multinational Corporations (SOMO). At the end of May 2021, the report "Spinning Around Workers' Rights" about working conditions in spinning mills in South India was published, on which Eva…

Rikki Holtmaat has been our faculty’s confidential counsellor for PhD candidates since 2018. In this role, she listens, offers advice and supports PhD candidates dealing with various problems. ‘My approach is to find a solution together.’

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

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.

A professor from Leiden University, together with a former employee (who is also the professor’s partner), has been guilty of long-term unacceptable and often transgressive behaviour in the form of abuse of power and manipulation. This behaviour led to a culture of fear among staff who were largely…

Limburg lawyer Roger Cox has caused a legal revolution. With high-profile cases against the Dutch state and Shell oil company, he transformed the law into a tool to enforce climate policy. Leidraad alumni magazine spoke to him about a life defined by radical choices for a better world.

The image of the European Union (EU) as a remote law-making machine is widespread. Quite often journalists and politicians deliberately depict ‘Brussels’ as bureaucratic, even undemocratic, bypassing its citizens. And many of us buy into that image. Nikoleta Yordanova, Anastasia Ershova and Aleksandra…

White clouds of ice-cold gas flowing across the floor. Magical, but be careful not to freeze your fingers off. We are of course talking about liquid nitrogen and helium. You may have seen the spectacular Freezing Physics science show by the student organisation Rino. But did you know that this commodity…

What developments preceded modern Standard Dutch? PhD candidate Iris Van de Voorde conducted research on ‘pluricentricity’, or the idea that language norms arise in different places and spread outwards from there. PhD defence on 19 April.

Leiden scientists and companies receive 1.37 million euros to develop technology for the Einstein Telescope. This underground telescope will measure gravitational waves and must therefore be extremely sensitive. To that end, the consortium conducts research on the damping of vibrations at temperatures…

Political scientist Claire Vergerio (Leiden University) has made it to the final stage of the selection process for Central European University’s annual European Award for Excellence in Teaching in the Social Sciences and Humanities. As the 2019 Casimir Prize winner, Vergerio was nominated by the Faculty…

Following in the footsteps of Professor Jan Zaanen, visiting fellow Louk Rademaker is exploring quantum effects in so-called strange materials. His research is paving the way for new materials that could be used in emerging technologies.

On Things That Talk, a website founded and developed by Fresco Sam-Sin, students and researchers describe objects from today and from long ago. By now, more than a hundred objects have been covered. Willemijn Waal, Emma Verweij and Frank van den Boom contributed to the content.

17 November is all about high tech. From consultations with ASML and a component for the world's largest telescope to our high-tech education. Oh right, and a conversation with the new rector magnificus.

Seed funding to summer schools, research collaborations and joint degree programmes: in these ways and more, we’re creating impact as a partner in Una Europa, an alliance of 11 leading research universities. To wrap up the year, we asked six colleagues to reflect on what they’ve achieved through Una…

Is aviation on a one-way journey or a round trip? That is the question Steven Truxal will answer in his inaugural lecture From Disruption to Innovation in Air and Space: Legal Solutions for a Sustainable Future on Monday 15 November. This professor of air and space law is positive. That’s one thing…

The European University for Well-Being (EUniWell), an alliance of seven European universities including Leiden University, is celebrating its first anniversary! All employees and students are invited to the online FestiWell event to celebrate this landmark together. Reason enough to call Melissa Koops,…

Working together, taking responsibility, making connections or pushing boundaries: all competences that are essential for leadership. With HRM Learning & Development's range of training courses, you can grow these competences and develop into a manager. Two colleagues talk about their experiences.

When you think of physics, do you think only of complicated formulas? You’re not the only one. Therefore, every year, the Leiden Insitute of Physics organises the LION Image Award to show another side of physics: beautiful images about intriguing science. The winner of the 2022 photo competition captured…

Looking to share your academic results or insights with a global audience? Leiden University is a ‘contributing member’ of the international journalism platform The Conversation. In 2024, this resulted in 51 articles, which together were read by more than 667,000 people.

These days we do not just have wars and civil wars – more of a global civil war, says Bashir Azizi, who received a PhD in April 2020 for his thesis on global citizenship. The second edition of his thesis was recently published.

On 26 November historian Jan Grabowski and sociologist Barbara Engelking will both give the Cleveringa Lecture. They wrote a book about the Holocaust in Poland and were taken to court for defamation.

The exhibition Leiden celebrates – 450 years of parades at Museum De Lakenhal shows how parades and society have changed through the centuries. Alumnus and historian Danielle van Goethem worked on the exhibition. She gives a preview.

A team of researchers from Young Academy and the Huygens ING/NL Lab has brought a three-century-old fragrance to life based on a recipe by Constantijn Huygens. The fragrance makes the past more tangible and can help people experience history differently.

What do you get when you bring a percussionist and a trumpet player together in a project orchestra? A story full of passion, unique experiences and a healthy dose of enthusiasm. We spoke with Tommy and Jeroen, both staff members at ISGA, about their participation in the Leiden Canal Concert on Sunday…

At the entrance of the Van Steenis building you may now visit an exhibition on material culture. Unexpectedly, it does not display pottery or tools, but building materials. And recent ones at that! Check out the exhibition on Legos lost at sea, conceived and assembled by PhD candidate Maia Casna. ‘These…

With ongoing protests across Iran, many are asking whether the regime is on the brink of collapse. Three Leiden experts share their perspectives.