What holds people together and what makes them willing to fit within larger political structures? Our project examines this question in the practices of dynastic rulership in Eurasia ca. 1300-1800.

Leiden University and the Netherlands National Museum of Antiquities (Rijksmuseum van Oudheden) are jointly involved in the intensive archaeological exploration of Northern Syria, by means of field surveys and large-scale excavations at a number of archaeological sites in the Balikh basin: the Tell…

In welke mate hebben domaniale structuren de machtsvorming en nederzettingsontwikkeling in en van het gewest Holland bepaald?

Many of the challenges of our time are too complex to be resolved within the confines of a single discipline. Leiden University is a broad-based university where an incredible number of research fields converge. That makes us the ideal breeding ground for, and practitioners of, interdisciplinary research…

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On March 17, our dear colleague Jan Schmidt passed away after a fruitful and valuable life.

One of the holy grails of drug research is to be able to assess the safety of chemicals and pharmaceuticals without using laboratory animals. Researchers from Leiden University, among others, now receive a grant from the National Science Agenda to pursue that goal.

Monica den Boer, who has decades of experience within police and defence and was also active as a Member of Parliament (D66), has been appointed extraordinary professor of Police Studies.

Authors: Pierre-Bruno Ruffini and Olga Krasnyak

Natalia Grincheva (2020). Museum Diplomacy in the Digital Age. London: Routledge. ISBN 978-0-8153-6999-8, 164 pp., £27.99 (paperback).

The use of a new type of detector has generated a strong improvement in the resolution of electron microscopes. The 'low-energy electron microscope' (LEEM) can now be used for research on the thinnest possible materials. The tests with the detector represent the first result of the ESCHER project.

Wouter Verschoof-van der Vaart is refining an artificial intelligence system that can detect and classify archaeological objects on digital images. Such a system is desperately needed because human archaeologists around the world are being flooded with data.

During the summer, staff of the Faculty of Archaeology congregate in all parts of the world, initiating or joining fieldwork projects. Read some of their stories here!

Paleobotanist Menno Booi discovered that 250 previously described fossil tree species are objectively not distinguishable; they belong to only one single species.

The Honours Class From Solar to Fuel with Bio consisted almost entirely of the workshop on Solar Biofuels from Micro-organisms that drew more than eighty specialist researchers to Leiden's Lorentz Centre in late March/early April. Students Erica Wenker (chemistry) and Jasper van Dobben de Bruijn (law)…

A partnership with the Leiden Leadership Programme: what does it bring you? Two partner organisations in the field of sustainability, Arcadis and Bioto, share their experiences: “It's great to be surprised by new insights.”

The youngest institute of the Faculty of Science has had a real growth spurt in recent years. It is up to Martina Vijver as the brand-new scientific director to secure that growth and further develop CML. 'This is a challenge that I am really looking forward too,' says Vijver. 'Together with my colleagues…

Dovilė Rimkutė, Assistant Professor at the Institute of Public Administration in The Hague, received the prestigious VENI grant for her research on risk regulation. 'We expect science to be the core basis of risk regulators’ decisions,' says Rimkutė, 'but at times threats to the regulators’ reputation…

The brain is a complex organ, and researching medicine to treat brain disorders is equally if not more complex. Elizabeth (Liesbeth) de Lange, Professor of Predictive Pharmacology, calls for a structured approach. ‘In effect, it's like playing Mastermind.’ Inaugural lecture on 22 March.

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

What is the environmental impact of the fish on our plates? And is an electric car really more sustainable when we include the generation of electricity? Jeroen Guinée maps the environmental impact of products and technologies. He analyses them from raw material to waste disposal. He was appointed Professor…

Marlien van Mever delved into the analysis of tiny samples, cerebrospinal fluid from transgenic mouse models for example. She validated methods that can now be used to study brain diseases such as migraine and epilepsy. Van Mever will receive her PhD on 14 June.

Practicum Artium is a joint programme by Leiden University and the Royal Academy of Art (KABK) that offers students the opportunity to develop their artistic skills. Due to the pandemic, this year’s exhibition will take place online so we asked a few of these talented students about their experience…

Jean-Eric Paquet, a Director-General at the European Commission, visited Leiden University on 20 February. He was impressed by the researchers’ drive, the wide range of topics that they research and the strong collaboration with Leiden Bio Science Park.

Maartje van den Heuvel, researcher and curator of photography at Leiden University, will be giving a tutorial next semester to master students of Film & Photographic Studies. A great opportunity for them to work with an exceptional collection from the Leiden University Library. Van den Heuvel explains…

Two PhD defences on 9 June by behavioural biologist Errol Neo and underwater acousticianan Özkan Sertlek relate to measuring noise in the North Sea and the harm this noise can do to aquatic animals and their surroundings. Little is known about how harmful human noise can be to aquatic animals.

Can astronomers mitigate climate change? This is what Leiden astronomer Leonard Burtscher and his colleagues discussed at the annual meeting of the European Astronomical Society. For the second year in a row, the meeting was online. And according to Burtscher, it should stay that way. During a special…

The Dutch National Research Agenda announced today that it will provide 17 research projects with a total of 61 million euros in funding. Researchers from Leiden University or the Leiden University Medical Center are involved in five of the projects. All of the projects are interdisciplinary partnerships…

Children find that both dinosaur fossils and replicas belong in a museum, but they appreciate the real objects more. This is shown by research from Leiden University and Naturalis Biodiversity Center. 'Children look beyond superficial looks and attach great value to less obvious characteristics, such…

Does a communal garden provide cool air and warm neighbourly relations? Does an additional row of trees increase biodiversity? These kinds of questions are key in the COMBINED project, on which Leiden scientists and residents of The Hague, among others, can work for six years with 4 million euros from…

For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…

Indonesia still has a long way to go before the country can truly flourish, was the message given by Indonesian Vice President Boediono during his visit to Leiden University on 26 March. He viewed collections in the University Library and the Hortus, and was presented with the William of Orange medal…

Museum Boerhaave commemorated the hundredth anniversary of Einstein’s Theory of General Relativity with the exhibition ‘Einstein & Friends’. The exhibition shined light on the famous physicist’s Dutch friends and his love for Leiden. A review featuring seven images can be found below.

On Sustainable Tuesday, two weeks before Dutch Budget Day, the Dutch cabinet receives a suitcase full of sustainable ideas and initiatives. The initiators' aim: to make the government plans for the upcoming year a little more sustainable. At the Leiden Institute of Environmental Sciences (CML), assistant…

Just off the coast of Libya, aid organisations try to rescue boat migrants. The confiscation of one of the rescue ships shows how important but difficult it is for aid organisations to remain neutral, independent and impartial, says Eugenio Cusumano.

The opening ceremony of the Olympic Games in Munich in 1972 made a big impression on Nicole Hoevertsz. I’m going to be there one day, the eight-year-old Nicole decided. Her passion for sport and her perseverance brought her further than the once so introvert Aruban had dared to hope. Her appointment…

Learning to cycle without a handbrake, saying sorry if you're late for a lecture and fathoming out the weird sounds of Dutch. Leiden's new international students get a crash course in Dutch culture during their introduction week.

When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental scientist Joeri Morpurgo looked at the differences and designed a general…

Leiden University celebrated the Relief of Leiden with the 3 October University. This year the University also took part in the festive parade, to promote 444.

On Wednesday 13 December, Melanie Fink will defend her doctoral thesis ‘Frontex and Human Rights: Responsibility in “Multi-Actor Situations” under the ECHR and EU Public Liability Law’. The defence will take place at 10.00 hrs at the Academy Building of Leiden University, Rapenburg 73. The supervisors…

Crime victims cannot always fully exercise their rights, said Maarten Kunst, Professor of Criminology, in his inaugural lecture on 26 October. His mission is to find out why exactly this is and to see whether change can be brought about.

Smooth platinum electrodes roughen and wear when subjected to repeated cycles of oxidation and reduction, which causes nanometer-scale mounds to grow. Leiden chemists Leon Jacobse and Marc Koper, together with physicist Marcel Rost, discovered the exact details, using a unique tunneling microscope.

Three Leiden students who have made their dreams of studying abroad come true this year with the aid of a VSBfonds scholarship talk about their experiences.

A public symposium was held at Leiden University on 20 February on a hot topic: renewable energy. This is the second time in a year that the University has organised such a symposium. The previous one, about Artificial Intelligence, was a big success.

Flying is cheaper than driving a car, but a disaster for the environment. Yet few politicians dare to levy excise duty on kerosene. This is only one example from a world where emotions and yelling are burying facts, and in which scientists lose connection with society.