A microscope with incredible sharpness that leaves samples unharmed – Guido Stam helped develop one. During his PhD research, he combined light and electrons to study biological samples. ‘We can now measure things that simply weren’t possible before.’

For over a year now, the James Webb Telescope has been sending stunning images that exceed astronomers’ expectations. The photos are fascinating to see, but what exactly are we looking at? Assistant professor Melissa McClure explains.

How do you really measure how a country is doing? Researcher Annegeke Jansen is looking for alternatives to gross domestic product (GDP) to assess the state of society. As an economist, she focuses on well-being, inclusivity, and a healthier environment. ‘The economy should be a tool to achieve those…

The interdisciplinary AI & Society minor of Leiden University brings together students and lecturers from a wide range of disciplines. Together they look at the impact of AI on society. Students are enthusiastic about this merging of worlds.

The Dutch research funding landscape is changing. What developments can senior grant adviser Walter van Raaij see? And what are his tips for a successful grant application?

A true shower of awards for students from the Faculty of Science during the annual KHMW Young Talent Awards ceremony. On Monday, 25 November, no less than nine first-year students received a prize for the best academic results in their first year. In addition, there were graduation prizes for master’s…

The LUMC, Leiden University and The Hague University of Applied Sciences want to help health professionals support behaviour change in the population. Such change would help people live healthier lives and reduce their risk of disease. The Municipality of The Hague is supporting this educational project…

The Young Academy Leiden (YAL) acquired six new members on 1 September. We talked to the new and former chair of this platform for young academics about what they have achieved over the recent period and what is on the agenda for the coming year.

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

Innovative, future-proof teaching methods were the theme of the tenth Leiden Teachers’ Academy Education Conference that took place on 5 June.

Even with state-of-the-art technology, it is almost impossible to see: a cosmic neutrino. Yet scientists have managed to image this particle with a deep-sea telescope. And that could help to better understand our universe. Leiden particle physicists collaborated on this ambitious project, published…

Het zal niemand ontgaan zijn dat de digitale dreigingen blijven toenemen. Uit monitoring door onze cybersecurity-experts blijkt dat er continu wordt geprobeerd om ook onze systemen binnen te dringen. Wat doen wij daartegen en hoe kan jij als medewerker bijdragen aan onze cyberveiligheid?

Martina Huber, Jacqueline Labra Munoz research Alzheimer's disease. They study ferritine, iron storage in the brain. An inbalance of iron could play a role in this form of dementia.

Leiden physicists Alexandre Morin and Samadarshi Maity study self-organisation and flocking phenomena. They shed light on flocking, which helps to understand how it is possible that birds in a flock don't collide. With plastic microbeads, they create an experimental setup and they developed a mathematical…

‘I'm setting Academia in Motion by promoting transparent and rigorous research practices and by advocating for more interaction between science and society.’ With these words, Ludo Waltman, Open Science Ambassador for Academia in Motion, highlights how he is contributing to the culture change towards…

Last week’s sunny Lowlands festival was not just an occasion for partying and dancing. Visitors were also given a glimpse – as test volunteers – into scientific research. How do you conduct research on fear and silent communication at a festival?

One discovered that arteriosclerosis resembles an autoimmune disease, while the other developed a system to aid in the search for new medications. For these achievements, Marie Depuydt and Jurren de Groot were awarded the Krijn Rietveld Memorial Innovation Award on the evening of Tuesday 4 June.

The university is responsible for the safety of over 40,000 people who work, study and visit around 50 buildings in Leiden and The Hague. Find out which security measures are changing and what this means for you.

Five consortia within the Perspectief programme that include Leiden researchers have received funding to start their research projects. These projects focus on (further) developing technological innovations, with societal and economic impact at their core.

Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Netherlands Institute for Space Research, dives into this intricate connection. In her PhD research, she explored how elements like oxygen influence the…

During our special Fall symposium on November 28, we celebrated the 40th anniversary of Bio-Pharmaceutical Sciences. Organized in collaboration with our study association L.P.S.V. „Aesculapius”, the event brought together staff, students, and alumni for an afternoon focused on four decades of ‘Innovation…

It doesn't happen every day that the research project of a first-year bachelor’s student results in a scientific publication. And not only that, but as first author and on the cover of a leading physics journal. ‘We have given our lab education a thorough overhaul and it is paying off.’

The Advanced Nano-electrochemistry Institute Of the Netherlands (ANION) consortium will receive 23.6m euros in Gravitation funding for research on important electrochemical processes for energy transition. An additional four consortia with members from Leiden have also been awarded funding.

A fresh vision on publishing, a broad set of quality criteria for education and research and plenty of opportunities to share good practices and learn from each other. These are all on the 2025 agenda for Academia in Motion: our university-wide programme that brings together Open Science and Recognition…

The James Webb Space Telescope continues to surprise us with stunning pictures, but of what exactly? Astronomer Nienke van der Marel shows with three images how massive stars lead short but explosive lives.

Are you a Leiden researcher looking for opportunities for interdisciplinary research and collaboration in the fields of local communities, health and disease prevention? If so, Health Campus The Hague is the right place for you. Take a look at these four examples of current research.

Assistant professor Joost Willemse firmly believes that as a teacher, you’re never done learning. ‘Students ask questions about things you’ve never thought of yourself. Ultimately, that makes you better at your job.’ That’s why he always encourages his students to ask questions. And it’s appreciated:…

What will it be like to study at Leiden University in 2075? Ten surprising, artistic uni-visions could be brought to life. It’s up to you to vote for your favourite.

In the next decades, thousands of wind turbines will be added to the North Sea. Environmental scientist Chen Li identified the most beneficial areas for their construction, focusing on material use, carbon footprint, and environmental impact. His paper was published in Environmental Science & Techno…

The Phase 3 clinical trial results of the promising Covid-19 vaccine of Johnson & Johnson are expected this month. The Dutch electron microscopy facility NeCEN helped develop the company’s vaccine, and they have now published their scientific findings in Nature Communications.

One and a half hectares of polder, a large volume of water, and a group of curious researchers from various universities and scientific backgrounds led by ecologist Maarten Schrama. These are the ingredients needed to answer the question: how do water retention areas affect nature, animals, and our…

It was not until 1878 that the first female students enrolled at Leiden University, but the discussion on whether women were suited to study was by no means over. 8 March is International Women's Day. BBC correspondente Kim Ghattas will deliver a lecture on 6 March on the struggle by Arabic women for…

All Leiden University staff will receive an invitation on 17 October to fill in the Personnel Monitor. Why is it important that everyone completes it? And what has happened with the results of the last Personnel Monitor? Vice Chairman of the Executive Board Martijn Ridderbos explains.

No fewer than 55 applications were submitted for a Kiem seed grant, an initiative for developing new interdisciplinary, interfaculty research partnerships and encounters. The draw took place on Monday for the allocation of 22 seed grants. The Executive Board was so impressed with the number of applications…

How can the academic world best handle the new political reality in the United States? This is the question that managers, lecturers, researchers and students at Leiden University discussed on Friday afternoon at a gathering in the Kamerlingh Onnes building. ‘Don’t just give in; defend academic free…

Seven interdisciplinary projects involving Leiden University academics have been awarded up to €27,000 in seed funding. They will work with Una Europa alliance partners to advance topics including academic freedom, AI in the humanities, sustainable mining and maternal health care.

Leiden students often prefer complicated theory and a difficult test to experiments. Yet associate professor Paul Logman believes students learn a lot from practical teaching. He challenges his students to come up with their research questions themselves. The Leiden Institute of Physics (LION) is at…

‘What I find most alluring about soil life is that you can steer it,’ researcher Martijn Bezemer of the Institute Biology Leiden (IBL) reveals. ‘You can ask: What do you want? And then I can transform the soil into something you need. At least, that is what we thought.’

From the birth of the universe to the molecules in a planet's atmosphere. The first five pictures from the James Webb Space Telescope (JWST) show the enormous range in which the space telescope can operate. Ewine van Dishoeck, professor of molecular astrophysics, took a look at the first images Tuesday…

Roderick Bouman is collection manager of the Leiden Hortus botanicus. He keeps track of which plants there are in the garden, where they come from and makes sure visitors can find the right information about them. ‘We are like a regular museum,’ says Bouman. ‘Except that our objects are alive. That…

What if I completely changed everything? A subject without lectures or exams, where the right answer is not important and where students work with their hands. With this idea, Michiel Brentjens reformed the course Radioastronomy. His students are so enthusiastic about this approach that they nominated…

Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.

Leiden University is switching to a new system for HR, finance and purchasing on 1 January 2026, after 27 years of using SAP. We spoke to Wouter Peters, Director of ASSC and Programme Director of BAS, about what this means for the university and you as a member of staff.

What motivates citizens to participate in a citizen science project on plastic pollution? And does that motivation change over time? Liselotte Rambonnet tried to answer these and other questions with her research on the Clean Rivers (‘Schone Rivieren’) project. Rambonnet is a PhD student at the Institute…

Five Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to two million euros will enable them to continue and expand their scientific research.

It has only recently been discovered that single-celled organisms (bacteria and archaea) also have histones—proteins that structure DNA. Now, Leiden PhD candidate Samuel Schwab has found that the histones in these organisms are much more diverse than previously thought. Schwab and his colleagues describe…

An atomic vandal has finally been caught! Scientists from Leiden University and the Department of Energy’s SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This breakthrough paves the way for more affordable green hydrogen production and…

Many protoplanetary discs in which new planets are formed are much smaller than thought. Using the Atacama Large Millimeter/submillimeter Array (ALMA) scientists of the Leiden Observatory looked at 73 protoplanetary discs in the Lupus region.

In the complex academic playing field, it is crucial that researchers and research support professionals know how to find each other. At Leiden University, these collaborations are indispensable too, say professor Gilles van Wezel and project manager Mariana Avalos Garcia. ‘Without support, this project…

Yuchen Lian defended her thesis on AI and language evolution at Leiden University.