Smiling faces, sweltering heat and a record-breaking donation – that was the Leiden Science Run 2025. On Saturday 21 June, the Leiden Bio Science Park turned bright orange as enthusiastic runners completed 4.5 kilometres to support research for vulnerable children.

June 23rd was the annual Science meets Business & SBB barbecue. The event offered brilliant opportunities for SBB alumni to meet companies for internships, job openings and networking, or to just reunite with old friends.

Water is all around us and is vital for all aspects of life. Studying the various compounds and life forms that inhabit natural waters lets us better understand the world around us.

By comparing individual health data with population data, doctors can provide personalized health advice and patients can learn from each other's experiences. Wessel Kraaij, professor of Applied Data Analytics shows how personal data can have predictive value.

The future of Europe as a community of democratic states is deeply uncertain. The European Union, founded to promote ‘ever closer’ integration, aims nominally for peaceful, prosperous cooperation. But this ideal has been battered by a series of bruising crises, and now by war.

The Oxford Handbook of Dutch Politics provides a comprehensive longitudinal overview of the state of the art of academic research on the Dutch political system: its origins and historical development, its key institutions, main fault lines, pivotal processes, and key public policy dynamics. In each…

Design of a Linguistic System for Interstellar Communication Based on Logic

Hans de Iongh, associate professor at the Institute of Environmental Sciences (CML), was named 'Officier in de Orde van Oranje Nassau' on Thursday 27 October. His work on the prevention of lion extinction in Africa was one of the reasons for this award.

Minister Grapperhaus wants to use intelligence services in the investigation of drug crime. There are many doubts about this wish in the intelligence world. Paul Abels, Professor by Special Appointment Governance of Intelligence and Security Services at the Institute of Security and Global Affairs (ISGA),…

Professor Joke Bouwstra has been elected as member of the Koninklijke Akademie van Wetenschappen (KNAW, The Royal Dutch Academy of Sciences). This is a very prestigious recognition and a great honor for Joke. You can find the announcement by the KNAW below (short version) and as an attachment.

On 7 February, the first co-creation event of the Expanding (Event) Horizons project took place at Leiden University. Nearly 30 educators, scientists and consultants from diverse backgrounds designed inclusive projects for engaging students from underrepresented minority groups with educational Science…

The university campus at Leiden Bio Science Park will change rapidly over the next few years. A short film shows the transformation to a full campus. See what this mix of new university buildings, student accommodation and restaurants and cafés will look like. And sustainability and biodiversity won’t…

Computer scientist Matthijs van Leeuwen is one of four science faculty members who obtained the Senior Qualification in Education in 2021. What was that like and what drives him? ‘In my own education I would have liked to see more attention paid to the responsibility that machine learning and data mining…

The Leiden Bio Science Park (LBSP) is very important not only for the city of Leiden but also for the Leiden region and the Netherlands as a whole. This is the finding of an investigation conducted by the Leiden-Leiderdorp Audit Committee. The large-scale development of the LBSP in recent years has…

As of 1 September 2024, Thed van Leeuwen is professor by special appointment of the chair “Monitoring Open Science Policies and Practices” at the Centre for Science and Technology Studies (CWTS) at Leiden University. The mission of the chair will be to understand the changes in policies and practices…

Why is water wet? What is ADHD? In De Hoe?Zo! Show, curious 9-and-10-year-olds get answers to their questions. PhD candidates take to the stage to demonstrate just how exciting science can be while enhancing their own communication skills at the same time.

Seminar 12th of April

Is scientific research useful? In his dissertation, Jorrit Smit argues that in order to answer this question one should not look at, for example, prominent scholars or influential organisations, but at places where knowledge exchange and co-creation take place. Promotion 6 May.

Come to the Night of Arts and Science in Leiden 's historic city centre on 17 September. You can enjoy music, interactive experiments, theatrical plays, lectures, modern dance, comedy and much, much more. Many of the activities are in English.

As schools in the U.S., students have to enter through security gates; schools in Belgium were forced to remain closed for several days after the attacks there; and even in the Netherlands various bomb scares have led to children having to stay at home. And yet fear of terrorism remains a difficult…

How do we get better at detecting research errors? And how do we ensure that we no longer see those errors as evidence of our inability, but as keys to better and more reliable research? Scientists offer advice during the third Psychology Connected.

This article describes the creation of an app that can help raise climate awareness and the action globally.

This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.

Arco Timmermans, Professor by special appointment Public Affairs at Leiden University, brought sience to practice by designing an “ideal” academic education programme on public affairs, to be embedded and taught at the graduate level.

In January 2020, Dr Min Jung Cho and Dr Annie Trevenen-Jones of LUC The Hague applied for the LUF - SVM (Stichting Verpakking en Milieu/ Foundation for Packaging and the Environment) grant. In June 2020 they were awarded a grant amounting to the sum of €75,000.

Five projects with a lead applicant from Leiden will receive an Open Science Fund grant from the Dutch Research Council (NWO).

Lecture

Growing health inequalities, rising healthcare costs, an ageing population, and shortages of healthcare staff are just some of the challenges facing healthcare, both in the Netherlands and beyond. These issues transcend the boundaries of the medical sector and touch on broader themes such as social…

The Citizen Science Netherlands (CS-NL) network was officially launched this month with the aid of an Open Science NL grant. The new vision for this network was presented on 28 May.

Reprohack, an initiative from community members, won the Open Initiative Trophy on 11 February, a prize for the best open science initiative in the Netherlands. A Reprohack is a hackathon-like event where participants repeat research to see whether the results were reproducible.

Astronomer and science communicator Pedro Russo is awarded the K.J Cath Prize and € 2,500 for his outreach efforts that bring science to the general public. ‘There are so many bright scientists, and so few people communicating about science.’

Political scientist Maurits de Jongh (Leiden University/Sciences Po) argues that political liberalism is self-defeating as a framework of justification for liberal conceptions of justice. He explores how the framework's self-imposed criterion of acceptability in the eyes of all reasonable citizens leads…