Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde

Since the Middle Passage is in the North Atlantic, and the North Atlantic has a relationship with the arctic, what relationship does the Arctic have with the Middle Passage? How can this relationship be used to provide a space of healing by uncovering Afro/diasporic counter narratives?

We have conducted a full spectral line survey of the 3-13 micron region of two massive protostars, AFGL 2591 and AFGL 2136, for the first time at high spectral resolution.

This is the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). The summer school is intended for Bachelor (BSc) students in physics. It covers topics from quantum matter and optics, to biological & soft matter physics and cosmology and theoretical physics.…

Promotor: J. N. Kok, Co-promotor: A. J. Knobbe

At our Summer School on Philology and Manuscripts from the Muslim World we offer graduate students and researchers lectures by experts, practical classes, and hands-on experience with manuscripts from Leiden University’s famous collection of oriental manuscripts.

Discover the Summer Schools of Leiden University

Holidaymakers, day-trippers and tourists could book a university tour with a student as their guide in summer 2025.

Promotor: M. Franx, Co-Promotor: I.F. Labbé

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

Holidaymakers, day-trippers and tourists were able to book a University tour, with a student as their guide.

The annual Leiden Institute of Physics (LION) summer school offers outstanding bachelor students the opportunity to discover the research frontiers of modern physics. The programme includes seminars by renowned physicists on variety of topics, visits to research laboratories, and a range of social a…

Are you a researcher eager to share your work with a broader audience? Do you want to develop your science communication skills and learn how to engage effectively with society? Then join our Summer School in Science Communication in Leiden! Jointly organized by the Faculties of Science and Social…

Do you want your research to have meaning beyond your academic peers? Whether you work in the natural sciences, social sciences or humanities, communicating your work to a broader audience can lead to new insights, unexpected collaborations and opportunities to contribute to societal challenges and…

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)

Discover the Summer School Program Population Health Management by LUMC and learn about strategies to deal with current issues and developments in healthcare.

An ageing population, epidemiological challenges, rising healthcare costs, and technical developments in the medical sector are some of the topics that will be covered during the 5 day Summer School on Population Health Management. You will learn strategies and acquire new competences to understand…

Philology and Manuscripts from the Muslim World

Check our varied programme starting in May 2026

Optimally solving real-world expensive Black-Box Optimization (BBO) problems w.r.t. real-world constraints, such as wall-clock time and computational costs, is extremely difficult and tedious.

Practical information about the physics summer school of Leiden University: the frontiers of modern physics. This page contains information about the cost and price of the summer school, the available scholarships, location, housing and the programme. This summer school is a part of the Leiden Insitute…

Discover the Summer School Frontiers of Children’s Rights by Leiden Law Academy, with this year's theme of accountability and access to justice. Read more here!

In this book Adam Fairclough chronicles the odyssey of black teachers in the South from emancipation in 1865 to integration one hundred years later.

The Leiden Summer School in Languages and Linguistics 2026 offers a varied program of introductory as well as more advanced courses in Anatolian, Classics, Descriptive Linguistics, Language Documentation, Eastern Christianity, Germanic, General Linguistics, Historical Linguistics, Indo-European, Indology,…

The physical origin of the dozens of stellar-mass binaries, the mergers of which have been detected by the LIGO-Virgo-KAGRA collaboration via gravitational waves, is still unknown.

Optimization tasks in practice have multifaceted challenges as they are often black box, subject to multiple equality and inequality constraints and expensive to evaluate.

The Graduate School of Social and Behavioural Sciences in collaboration with the Department of Methodology and Statistics and researchers in the field of Methodology and/or Statistics of the other Institutes provides training courses for PhD candidates and other researchers.

The Event Horizon Telescope (EHT) collaboration receives the 2021 Royal Astronomical Society Group Achievement Award. In April 2019, the EHT team presented the first-ever photograph of the shadow of a black hole. Leiden professor Huib-Jan van de Langevelde has been director of EHT since last year. Three…

In White Lies and Black Markets, Fatah-Black offers a new account of the colonization of Suriname—one of the major European plantation colonies on the Guiana Coast—in the period between 1650-1800.

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.

Continuous optimization is never easy: the exact solution is always a luxury demand and the theory of it is not always analytical and elegant.

This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Een minuscuul cirkelvormig stukje DNA zorgt ervoor dat de darmbacterie Clostridioides difficile resistent raakt tegen een veelgebruikt antibioticum. Dat ontdekten wetenschappers van het Leids Universitair Medisch Centrum (LUMC) nadat artsen hen attendeerden op een patiënt met een moeilijk behandelbare…

This book is the first systematic analysis of the changes in the use of goods and services by households of Black South Africans since the early nineteenth century.

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

Geheime diensten en criminelen kunnen inbreken in slimme apparaten, door slechte beveiliging. De markt lost het niet op: bedrijven willen gadgets verkopen, burgers doen ook weinig. NRC sprak hierover met Bibi van den Berg.

The Dutch Black Holes Consortium receives 4.9 million euros from NWO for unravelling the mysteries of black holes and other mysteries of the universe. The Astronomy and Society group at Leiden Observatory is affiliated to use the leading research to introduce people of all ages and background, and children…

Meet the newest Full Professor at the Leiden Observatory: Joe Hennawi. All the way from Santa Barbara, California, Hennawi will strengthen the astronomy institute. In Leiden, he will use his recent ERC Advanced Grant to study how supermassive black holes come into existence.

Over the past decade, several novel types of spatially resolved

NASA’s telescope SOFIA has provided a new glimpse of the chemistry in the inner region surrounding massive young stars where future planets could begin to form. Leiden PhD candidate Andrew Barr writes about it in the Astrophysical Journal. The scientists found massive quantities of water and organic…

The aim of the project is to contribute to the process of archive formation ongoing in Post-Apartheid South Africa through the inclusion of photographs that have been either unacknowledged or excised from the national canon.