The rule of law is crumbling in the Netherlands, lawyer Lilian Gonçalves-Ho Kang You warned in her Cleveringa Lecture.

Leiden psychologists receive an Outreach Grant from the Young Academy Leiden (YAL) to talk about facts and fables in their field of research. Marieke Bos, Lara Wierenga, Marit Ruitenberg and Sanne Willems will receive up to €1000 to realise their project.

The tuk-tuk of the European City Of Science Leiden 2022 sent science on its way to the neighbourhood. On the Vijf Meiplein in Leiden, Andrea Evers' placebo team pitched its tent to everyone who wanted to know more about the effect of words and expectations. Experience the day of the placebo effect in…

The 'deepest and sharpest' image of the Universe to date: the first photos from the new James Webb space telescope yesterday mesmerised astronomers and the public alike. Leiden Professor of Molecular Astrophysics, Ewine van Dishoeck, spoke to various media outlets about the first images, which include…

Lecture, Research Seminar

PhD defence

Master’s students in the Honours Class ‘Leiden, City of Refugees?’ were asked to contemplate the concept of ‘the other’ from both an academic and an artistic perspective. The result was the exhibition ‘The Invitation’ which was presented at Stadsbauhaus on 4 June.

From an academic study with local residents to a specially developed newspaper: humanities scholars contributed to Leiden European City of Science in various ways. In this video, they look back on a special year.

Various Leiden researchers have been awarded a European grant to explore the commercial or societal potential of previous research.

From 22 to 24 October, researchers of the MARBLES-project informed museum visitors about microbes: bacteria and fungi that live all around us. The event was organised around the Micro-day of Leiden, which is this year’s EU City of Science.

A dissertation covered in hot pink faux fur, antique prints of PhD ceremonies, a pot encrusted with sealing wax: the Hora est! anniversary exhibition at Oude UB takes you to the ritual yet idiosyncratic world of PhD ceremonies.

On this page we've bundled the best practices which will be presented during the Education Market of 19 June 2025.

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.

Lecture, Unfolding Finitudes

Lecture, LIAS After-Lunch Talk Series

Roundtable

Lecture, Research Seminar

Lecture, China Seminar

End of Year Event

Lecture, China Seminar

CADS Research Seminar

Writing a book on the recent history of Leiden University in corona times. For educational and policy historian Pieter Slaman (34), this has meant working in the attic of his parents’ house while they looked after his daughter, along with numerous online conversations and very few, if any, visits to…

Not only dark matter, but also ordinary matter and dark energy are tracked in the largest ever cosmological computer simulation ever. In the FLAMINGO simulations, you can see virtual galaxies and clusters of galaxies emerging over the course of billions of years. This is no easy task: with more than…

Planets existing in other solar systems contain invaluable information about the origin of planets and life. PhD candidate Yapeng Zhang has studied their atmospheres by looking at their smallest parts: isotopes. With her research she hopes to discover what makes our own solar system unique.

After many years of preparations, CERN has approved a groundbreaking new experiment: the Search for Hidden Particles (SHiP). Physicist Alexey Boyarsky was involved from the start. ‘We know there is physics that’s missing and we aim to find it.’

A CT scanner to treat eye cancer, energy-efficient software for the future and a test to identify male chick eggs. Three projects by researchers from Leiden University are to receive funding from research funder NWO’s Open Technology programme, to which the business sector also contributes.

Do you often find yourself exhausted in the lecture hall or at your workplace? Not great for your mental well-being, as Laura Pape knows. She is investigating how an online self-help program can assist in addressing sleep issues and preventing mental health problems. Join her on this elevator pitch…

The Sustainable 100 is an initiative by Dutch newspaper Trouw, consisting of a list of the top 100 sustainable civil initiatives. In October of 2020, the Jonge Klimaatbeweging (Youth Climate Movement NL) became the first youth organization to win first prize. An interview with LUC Alumna and Board Member…

On 4 May, Leiden University remembered the victims of the Second World War from our university community. Alumni, students and present and former staff of the University came together for this Hour of Remembrance.

With his clever measuring methods Ignas Snellen – together with his team – was the first to detect carbon monoxide in the atmosphere of exoplanets. For his pioneering work the Leiden astrophysicist has been awarded the Spinoza Prize, the highest academic honour in the Netherlands. The prize of 2.5 million…

It’s not healthy but we often do it anyway: sit hunched at our computer for hours on end. But exercising and relaxing at work doesn’t have to be complicated. These staff members have come up with fun and easy ways to help their colleagues stay fit and healthy. ‘You don’t need sportswear and won’t end…

Hundreds of students and staff from Leiden University gave a ‘whistle concert’ on 11 December against the planned cuts to higher education. Similar protests were held in other student cities on the same day.

In this episode, we talk with Mariska Kret about the expressions of emotions in humans and animals. Mariska explores the similarities and differences in emotion expression in humans and primates. Want to learn more about Mariska's research and discover why it's important that we learn more about animal…

When you think of a library, you probably picture books – or students quietly studying. But for subject librarian Rutger de Jong, most of the work happens online. ‘We never throw anything away. Everything produced here in the name of science should remain findable.’

Four researchers from Leiden University will receive funding from arthritis foundation ReumaNederland over the next five years. This should facilitate long-term research into arthritis.

Immunologist Leender Trouw specialises in the complement system, which is part of the immune system. In some diseases drugs help activate or inhibit this system. This is best done ‘in the right place at the right time’ − the title of his inaugural lecture.

Conference

Conference

In this episode, we talk with Leonie Vreeke and Nina Komrij about the Cool Little Kids research project. CLK explores the effectiveness of training parents of anxiety prone toddlers to prevent their children from developing anxiety on a later age. Want to learn more about their research and discover…

In this episode we talk with Mara van der Meulen about prosocial behaviour and social exclusion in children. Van der Meulen also explores the role of genetics and environment in the development of social behaviour. To find out more about her research on why some children are beter able to develop their…

Permission was recently given for all members of the examining committee and co-supervisors at PhD ceremonies to wear academic dress, even if they’re not full professors. How historic is this change?

The year 2021 is coming to an end, and with it the first official year of EUniWell. We want to reflect on our highlights of the year with you, celebrate what we have achieved within EUniWell so far and look to the future, to all that is yet to come!

The tuktuk of the European City Of Science Leiden 2022 sent science on its way to the neighbourhood. In the town center of Oegstgeest, the Empathy Team, consisting of Liesbeth van Vliet, Hinke Hoffstadt, Yvette van der Linden and Jenny van der Steen, took interested visitors on a journey into the experience…

...What does seem clear, though, is that there is a great deal of room for improvement in the process of out-of-home placement. The FSW's social and behavioural scientists give their views.

The Caribbean as we know it today is fundamentally a product of colonial activity and globalisation. Practically everyone that inhabits the Caribbean has ancestors from different continents due to colonial activity, which profoundly affects the area to this day. Caribbean writers, both in the Caribbean…

As sea levels rise and climate change speeds up, knowledge about the ocean becomes increasingly important. But how is this knowledge being created and how can we use it best to prepare for the future? To answers these questions, Jackie Ashkin studies the day-to-day work of ocean scientists from up c…