The Service Centre International Staff supports and advises all international staff at Leiden University. Not just about things like immigration, accommodation, taxes, insurance and dual career, but also about the social side of things like feeling welcome and at home at Leiden University. SCIS’s recent…

How can mentors and social workers foster the vocational identity of at-risk youth and improve their prospects? This is the subject of Rineke Keijzer-Groot's thesis. She is a dual PhD candidate at ICLON and Dual PhD Centre. Defence on 18 November.

The shock wave triggered by one of the five galaxies making up the iconic Stephan’s Quintet appears to be less disruptive than previously thought, with the shock likely being cushioned by dust particles in the surrounding gas. This is according to the analysis of the first scientific observations of…

On 21 February 2025, Sarah Coombs successfully defended her PhD thesis at Leiden University in which she analysed the impact of research conducted by Universities of Applied Sciences (UAS).

The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…

Conference

The majority of professors of tax law in the Netherlands have links to accounting and law firms, writes Dutch newspaper De Volkskrant.

Organisation

In its ruling this week, The Hague Court of Appeal made short work of how the Dutch Border Police allow the colour of a person’s skin to be taken into account when selecting people to check. According to Maartje van der Woude, this ruling reaches far beyond the border police. ‘This is a problem for…

Paco Barona Gomez is the newest associate professor at the Institute of Biology Leiden (IBL). The Mexican researcher is fascinated by the evolution of natural products: compounds made by microbes, but also plants and animals. ‘It’s like we investigate chemical dark matter.’

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighbouring stars for the first time, providing a new window to better understand the chemical evolution of the cosmos.The results are published today in the journal Nature Astronomy.

Different PhD tracks are available for different PhD candidates. Information is given here about the types of tracks, the admission requirements and the administrative steps to be taken.

You can apply various means to increase your societal impact: through interaction with professionals, the commercial sector or general audiences. The University can support you in this process in a number of ways.

In some cases, PhD candidates are permitted to follow a PhD track that involves conducting research and receiving supervision at two institutions: Leiden University and another university. On this page, you can read what forms of agreement there are.

Episode 5 of BOLDcast, the podcast of the Leiden-Delft-Erasmus Centre for BOLD Cities, discusses the evolution of libraries from simple lending points for books to places where people can come together and brush up on their digital skills. The guests in this episode are Frank Huysmans, associate professor…

‘Quantum technology is going to change the world, but most people don’t feel connected to it. I want to change that,’ says Julia Cramer, assistant professor at Leiden University. Known for her passion for science communication, Cramer actively seeks opportunities to share the wonders of quantum technology…

Last July, Robbert Dijkgraaf, Minister of Education, Culture and Science and Annetje Ottow, President of Leiden University's Executive Board, opened the new front office of the Leiden University office in Jakarta. The office - located on the grounds of the Dutch embassy - has a dual role. Firstly, it…

Anneleen van der Meer discusses Russia's alleged use of chemical weapons in Ukraine in an article for The Conversation.

Two talented academics from Leiden who recently obtained their PhD have been awarded a Rubicon grant by the Dutch Research Council (NWO). The grant enables them to gain experience at a knowledge institute abroad.

PhD defence

The use of fire can tell us a lot about human evolution. Archaeologist Femke Reidsma has developed a more accurate technique to identify how our ancestors used fire. Existing archaeological studies will need to be revised. Reidsma’s study was published in Nature Scientific Reports on 2 November.

For already two years, Vincent Niochet has been affiliated with the Leiden Faculty of Archaeology as an external PhD candidate. Now, he has been awarded an NWO PhDs in the Humanities grant, allowing him to continue his research as a paid PhD staff member. ‘The past two years have been quite challenging,…

Tracking mucus-eating bacteria, mapping the complexity of planetary nebulae and a signalling pathway in cancer. These three Leiden projects have been awarded Open Competition Science-M funding by the Dutch Research Council.

Jaap de Hoop Scheffer, Professor of International Relations and Diplomatic Affairs at the Institute of Security and Global Affairs, says we must block and expel Putin wherever possible.

Professor of Cognitive Psychology Mariska Kret studies how humans and animals express emotions. Comparisons between humans and great apes offer important evolutionary insights, Kret will say in her inaugural lecture on Friday 9 September.

Sustainable biotechnology, new insights into genome evolution and combining forces in mathematics. The NWO has awarded grants to these three innovative Leiden research projects in the ENW-M Open Competition.

For a successful return to society, incarcerated individuals must work on their reentry during their sentence. Not all such individuals receive good reentry support. This is according to a report by Leiden criminologists.

Women’s football is steadily gaining attention. It’s as though the sport is becoming emancipated. And yet in conversations with professional female footballers philosopher Nathanja van den Heuvel discovered that a male culture still prevails. Female footballers often feel like second-class athletes,…

Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.

Four PhD researchers of Leiden University have been selected to participate in the Europaeum Scholars Program 2022-2023. Two of them, Lena Riecke and Sophie Vértiter, are doing their research at ISGA. Time for a introduction.

In the fight for a liveable planet, we desperately need a fairer distribution of wealth and equal rights for all, argues anthropology professor Marja Spierenburg. ‘That will also generate broad-based support for sustainable development.’

Assistant professor Looi van Kessel writes in The Conversation about the passing of drag performer The Vivienne, reflecting on their significance for LGBTQ+ advocacy in Europe.

The carnivore diet, a fact or just a trend?

How do classroom demonstration experiments help students learn chemical reasoning? Marie-Jetta den Otter, PhD student at ICLON, researched this. She defends her thesis on 6 December.

Many children have an unhealthy diet and do not get enough exercise. Sanne de Vries wants to help everyone get a healthy start in life.

Professor of cardiology Douwe Atsma (LUMC) looks beyond the traditional boundaries of hospitals and healthcare institutions for solutions to increasing pressure on the current healthcare system.

An international research team is to search for invisible life in the Galápagos Islands. The diversity of bacteria and other microscopic organisms may not be evident to the naked eye, but it is essential to nature. To the islands' giant daisies, for instance: unique endemic plants that are currently…

Some bacteria, it turns out, have proteins much like ours that organise the DNA in their cells. They just do it a bit differently. This is revealed by new research from biochemists at the Leiden Institute of Chemistry and the Max Planck Institute for Biology. The discovery helps us better understand…

Simulations of galaxy formation provide much more information about galaxies than a telescope. Simulations have been improving significantly in recent years. Astronomer Evgenii Chaikin made such a significant contribution to this field that he graduated with honours on February 27th.

Astronomers have captured a new deep field of Pandora's Cluster (Abell 2744) with the James Webb Space Telescope. The images show never-before-seen details. The results are described in four scientific papers. Leiden astronomers Marijn Franx and Mariska Kriek collaborated on the study. 'This opens a…

Leiden scientists lead COLIBRE, a groundbreaking set of cosmological simulations. By including key missing physics, cold gas and cosmic dust, they offer the most realistic picture yet of how galaxies formed and evolved since the dawn of time.

For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…

Microorganisms that temporarily ‘go to sleep’ play an important role in the evolution and survival of a population. Mathematician Shubhamoy Nandan conducted research on the effect of this characteristic called ‘dormancy’ in a novel mathematical model.

No less than four Leiden research teams have been awarded a grant by NWO. On 27 July NWO honoured 21 applications in the Open Competition ENW-XL. NWO awards the grants to consortia in the exact and natural sciences who are doing unconnected fundamental research that is 'driven by curiosity'.