Want to find out how to assemble a human skeleton? Do you know what chemistry can be found around you? And are you easily fooled by fake news? Discover this and more at our Science Fair on 3 October.

Is it possible to measure subtle oscillations caused by dark matter moving through the earth? A Dutch-American physicist team have discovered a new route toward what could be the first-ever measurement of ultralight dark matter. They suspended a microscopic magnet inside a superconducting enclosure,…

Our annual strategic conference was held this year on 15 and 16 June in Soesterberg, and has now become a tradition at our university.

Arts and culture

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

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

Jasper Knoester, decaan van de Faculteit Wiskunde & Natuurwetenschappen, blikt terug op 2025 in "het jaar van Jasper".

Koen Keijzer combined three mathematical models into one unified system capable of making meaningful predictions about how cells form blood vessels. This helps biologists studying the chaotic, leaky blood vessels found in and around tumours.

Timo Kos has been appointed Vice President of Leiden University’s Executive Board and will take up the role on 1 March 2025. He succeeds Martijn Ridderbos, who will join the board of the Netherlands Authority for Consumers and Markets (ACM) on 1 January 2025.

Three Leiden students will be sharing their knowledge of history while playing video games. The livestreams are part of the ‘Streaming the Past’ project and will be available on the popular streaming platform Twitch. The first livestream will be on Thursday 20 May.

From practicing ultrasound techniques in augmented reality to chatting with virtual ancient Greeks about what an archaeological site looked like back in the day: video & innovation specialist Nathan Saucier gives an insight into the many possibilities of the interactive media and simulations studio…

Paul Wouters is not keen on people with a dual agenda. However, for the coming period, he himself will be in that very position. Besides his work as Dean of the Faculty of Social and Behavioural Sciences (FSW), he is temporarily coming to strengthen the Board of the Faculty of Science. Who is this Acting…

The Countering Syndemic Vulnerability project supports communities by identifying and tackling clusters of social factors and health problems. The project works with residents and professionals in the Moerwijk district in The Hague and the Stevenshof district in Leiden.

The Knowledge Orchard is a jubilee event at Leiden University to highlight, stimulate and strengthen inter- and transdisciplinary cooperation inside and outside the university. The event is aimed at Leiden University researchers and social partners. Put it in your diary!

Scientists regularly appear in the media. They participate in science cafés, write a popular-science book or visit school classes. In that way, they want to convey their knowledge and enthusiasm to society. But do they succeed? To answer that question, a new website is launched, with a toolbox full…

Leiden University is under fire: it is allegedly doing too little to tackle antisemitism. Rector Hester Bijl responds to this accusation and to a video from 2014 on social media in which extreme remarks are made. ‘We can be short about such comments: they are unacceptable. The university is and always…

The annual commemoration of the nation’s war dead on Dam Square and at Waalsdorpervlakte, the Dutch apologies for historical slavery and the Cleveringa Lecture itself: our relationship with history is often ritualistic, Cleveringa Professor Frank van Vree will say in his inaugural lecture on 27 Nove…

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

The Leiden-Delft-Erasmus Universities strategic alliance celebrates its tenth anniversary in 2022. At the ‘The Next Ten Years’ anniversary celebration in the Faculty Club on 12 April, the partners looked back on their achievements and ahead to the major social challenges of the next ten years.

Electrical inner ear prostheses like Cochlear Implants (CIs) help deaf and severely hearing-impaired persons to regain many of their communication abilities. The performance of CI in social environments is, however, not optimal. The new "Machine learning To Enhance teMPoral cOding foR cochleAr impLants“…

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

What do gender identity and digital technology have to do with each other? Together they are the subject of research at Leiden University. Researchers Tessa Verhoef and Eduard Fosch-Villaronga of the faculties of Mathematics and Natural Sciences and Law will investigate the interaction between artificial…

Amid rising polarisation and discrimination, lawyer and human rights activist Lilian Gonçalves-Ho Kang You wants to show in her Cleveringa Lecture on 26 November how dangerous exclusion is.

Una Europa, an alliance of 11 top European universities, provides annual seed funding for new research and teaching projects. Assistant Professor Carmen van den Bergh applied for funding with her Flemish and Italian counterparts. Thanks to this funding and the support of Erasmus+, students can now take…

Young Leiden researchers Alisa van de Haar and Marleen Kunneman have received a KNAW Early Career Award. The prize, awarded annually for outstanding achievements, consists of 15,000 euros and a unique work of art.

Jasper Knoester startte op 1 januari als onze nieuwe decaan. Hoe gaat het met hem, wat doet hij precies en hoe ziet zijn dag eruit? In elke nieuwsbrief geeft Jasper een inkijkje in zijn leven als decaan.

AI-related activities and programmes are springing up throughout the university. In research, for example, at SAILS, and for staff in workshops and co-creation labs. As an AI champion at the ISSC, Julian van der Kraats is involved in various AI developments.

Leiden researchers share their work with a global audience through the international journalistic platform The Conversation. What are the benefits? And how does it work? Two researchers talk about their experiences and why colleagues should consider taking the same step.

A European team of astronomers, led by Leiden-based researcher Konstantinos Migkas, has uncovered a large filament — a long, thread-like structure — of hot gas connecting four clusters of galaxies. This filament is made up of what scientists call the warm-hot intergalactic medium.

For four years, Vicky Beckers examined thin slices of wood under a microscope, mapping the anatomy of two plant families. Her research helps identify different wood species, benefiting both the timber trade and archaeology.

What is the best way to restore dune ecosystems? The project TERRA-Dunes researches the role of soil microbes in the development of natural dune areas. Recently, the project went into a new phase: planting 412 oak seedlings grown in different type of soils.

The university's CO2 footprint - a visual representation of Leiden University's environmental impact - is calculated every year. The CO2 footprint for 2020 shows a striking break in the trend in terms of energy use, mobility and waste.

Leiden University and the Municipality of Leiden will develop new plans for an alternative Humanities Campus in the city centre. This means they will not proceed with the compulsory purchase of the De Doelen housing complex to facilitate the construction of the new Humanities Campus. The plans to demolish…

Be it in climate change, public health or artificial intelligence, when different disciplines join forces, science often flourishes. The new small-scale Kiem grants will enable Leiden researchers to explore or start collaborative projects with colleagues from other faculties. ‘So seek each other out…

Leiden University and Stadslab Leiden invite you to improve the Leiden and The Hague environment with 450 extra trees – a living reminder of 450 years since the Relief of Leiden and the foundation of Leiden University.

Data from 41 million galaxies does not shake up the standard cosmological model after all. To that conclusion, to their own surprise, comes an international team of researchers including Koen Kuijken, professor at the Leiden Observatory.

The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…

Each year on or around International Women’s Day, the university hosts the Annie Romein-Verschoor Lecture. You are welcome to attend − even if you wouldn't call yourself a feminist, says professor and organiser Nadine Akkerman. ‘You get the best discussions with a diverse audience.’

With a self-converted red camper van, biologists and twin brothers Kevin and Marvin Groen go on a nature adventure in Eastern Europe. Together, they search for wild animals, beautiful nature and places to sport. From a long search for a bear in the Slovakian wilderness to the discovery that pelicans…

Getting young people excited about history is quite possible without books. Researchers from Leiden travelled to Morocco to work with schoolchildren on reconstructing cultural heritage in the popular video game Minecraft. The result: one virtual 14th-century city gate – and 20 teens with a greater appreciation…

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

Understanding the proces of electrochemical reactions is essential to improve the technology for the energy transition. Fuel cell cars, for example use hydrogen produced from the electrolysis of water. Mariana Monteiro did fundamental research on the process and won two prizes with her thesis.

There should be more social meeting places on our campus. That's one of the outcomes of to the second brainstorming session on the strategic plan. On Tuesday, education and the campus took centre stage during the meeting in Corpus. Professor and programme director Miranda van Eck and student assessor…

Workshop

Health conditions and social problems often go hand in hand. To address this complex issue in families in The Hague, researchers, managers, support services, policymakers and residents are joining forces. What are the results of this transdisciplinary approach?

Facility, Organisation