Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

Hermelijn Smits is Professor of Host-commensal Interactions and Immune Modulation. In this role she is increasing our current understanding of the way in which microbes and parasites shape our immune system to protect us from respiratory infections and chronic inflammatory diseases. In her inaugural…

PhD defence

From 16 to 26 July, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.

When the government introduced its corona measures, the future of EL CID suddenly looked uncertain. But this annual introduction week will start on 5 August after all. How did the EL CID board pull this off? A glimpse behind the scenes through the eyes of chair Mirte Haanappel.

Hundreds of new students at Leiden University attended the opening of the 2015-2016 academic year. They came from all corners of the world for the start of their new study programme. Portraits of some of the newcomers.

Researchers from all parts of the world will be in Leiden from 2 to 4 May for a major malaria conference. The Leiden University Medical Center (LUMC) is organising a two-day workshop on how vaccines can be tested safely in humans.

For nearly twenty years the Lorentz Center has been a unique venue where researchers from all over the world work in intense collaboration. In an inspiring academic climate, researchers are free to organise specialised workshops within and across disciplines, be it humanities, social sciences or sci…

Patients who can’t afford medicine. Refugees who need help. Expats who are ill. All alongside research into obesity. Having trained as a doctor, Dennis Mook-Kanamori chose the hard reality of life as a GP together with a job as a researcher at the LUMC.

How do you microscopically image zebrafish larvae? The new free online course ‘Imaging the Vertebrate embryo’ teaches you all about it. Leiden PhD candidates Salomé Muñoz Sánchez and Radoslaw Gora contributed to the course.

On the 9th of November 2022, 149 groups of last year's primary school children from 31 schools around the Netherlands had the opportunity to become social scientists for a day, researching their own social environment in a Citizen Science project called ‘Wij vinden!” (We find!)

It appears to be a paradox: ultra-thin material that absorbs all the incident light. Nonetheless, it does exist. Two Leiden researchers report on their research in ‘Applied Physics Letters’. The article is among the Top 20 of the most downloaded articles of this reputable journal in May.

Generations of Leiden students and academics have done archaeological research into the early medieval history of Oegstgeest. This makes this old settlement one of the best-documented sites from that era. In a new book Leiden researchers take stock.

A pop-up exhibition ‘All the Einsteins’ will open at Rijsmuseum Boerhaave on 29 May 2019. This is the first time that the museum will present its entire collection of handwritten letters and documents by Einstein. The exhibition marks, among others, the publication of the first photo of a black hole…

Now the election results are in, how should we interpret them? Time to call Associate Professor in Political Science Tom Louwerse.

Just like every other organism on Earth, plants’ ultimate goal is to survive and reproduce. In order to achieve this, they must make trade-offs between where and how to allocate their finite set of resources. Whether they put their resources and energy into their growth, reproduction or maintenance,…

In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

The ninth Museum Night in Leiden will take place on Friday 19 May 2017. This year's theme will be 'About time'. Nine museums are taking part and the city centre will be brightly lit.

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.

Part Three: A Change of Course

'The EU should not give way under pressure as the war continues,' writes Joris Larik, assistant professor of European law, in an opinion piece that was recently published in Dutch newspaper FD.

Nearly all university buildings at the Leiden Bio Science Park will be open and operating again as of Wednesday 24 May. Last night a team worked hard to restore the power to the buildings in phases and this was successful. Students and staff can work and study there again.

Markus Kornprobst writes about managing international crises.

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…

A vitamin D deficiency is often associated with smoggy English industrial cities during the Industrial Revolution, but research carried out on skeletons now suggests that the ‘English disease’ was also prevalent in rural areas of the Netherlands. Doctoral defence on 29 January.

In March, Jan Pronk starts as the new Executive Director at the Faculty of Archaeology. We sat down with him for an interview on his background, his drive, and his take on archaeology.

In October 2020, the Dutch Journal of Administrative Law had a special PhD issue, giving an overview of all PhD research currently being conducted in the area of administrative law in the Netherlands.

Every year the newly arriving Archaeology students are invited to join an introduction day during which they get to know the Faculty and each other. This year, however, for the first time, the students were invited to join in on introductory activities of a less static and more fun nature, organised…

Since 2023 the newly arriving Archaeology students are invited to join an active introduction day during which they get to know the Faculty and each other in a playful and fun way. The activities are organised by Study Adviser Cleody van der Eijk. ‘It helps people to loosen up and get to know each o…

'When taking into account all finds in the Islamic world of this enigmatic vessel, it would perhaps be wise not to restrict this container to merely one function.'

While the first votes of the American elections are being counted, PhD candidate Tessa van Buchem appeared as a guest on Radio 1. During the radio broadcast, she discussed the US Supreme Court: ‘The judges are seen as politicians in gowns.’

On 16 September 2017 the fifth edition of the Night of Arts & Sciences will take place in the city of Leiden. This is your chance to showcase your own work at the festival!

PhD candidates in medicine, Wouter Jan Geelhoed and Nan van Geloven, are the winners of the Leiden preliminary round of FameLab. They are through to the final on 22 April.

Research by Leiden University, LUMC and the Public Health Department (GGD Haaglanden) in The Hague has shown that over a quarter of the families in the city who took part in the survey experience some form of food insecurity. Some families have too little money to make a healthy meal or are worried…

They have known each other since they were small but Rianne and Tom first fell in love when working together at the university. That love culminated in a fairytale wedding amid all the revelry last 3 October.

Every year the newly arriving Archaeology students are invited to join an active introduction day during which they get to know the Faculty and each other in a playful and fun way. The activities are organised by Study Adviser Cleody van der Eijk. ‘It helps people to loosen up and get to know each o…

On 1 February 2018 Professor Maartje van der Woude (professor of Law and Society at the Van Vollenhoven Institute for Law, Governance and Society) became Associate Director of the Oxford-based Border Criminologies Network.

Looking for a great day out during the Christmas holidays? The University’s Rembrandt Route in Leiden is a fun and educational activity for both young and old. This special outdoor exhibition takes in seven University buildings, and there’s a treasure hunt for children [in Dutch]. Get your free English…

Arco Timmermans Public Affairs

Skype a Scientist is an online platform that matches scientists with classrooms and families around the world. At the start of the corona crisis, PhD candidate Maia Casna got involved with this online platform. Now she holds online sessions to talk about science and her research project during the lockdown.…