While investigating 16 years of images of young stars from a retired astronomical camera, Leiden master's student Sam de Regt discovered that two of those stars were still enveloped in birth clouds. Never before has anyone captured these two stars in so much detail. He publishes his data-cleaning method…

When we think about ancient Egypt, the first things that come to mind are usually mummies and sarcophagi. According to researcher and Rijksmuseum van Oudheden curator Lara Weiss, that impression is unjustified. She made an audio tour for the Rijksmuseum van Oudheden that focuses on living Egyptians…

LUC historian Jacqueline Hylkema unmasks forgeries from the early modern Dutch Republic in the research project "Mapping the Fake Republic".

Arts and culture

Stories of resistance in the Second World War are widely covered in Dutch historiography: Hannie Schaft, Erik Hazelhoff Roelfzema, and Professor Cleveringa are some of the best known. But these accounts largely focus on the Dutch domestic perspective. On the other side of the world, a complex colonial…

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Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

When deciding what to study you undoubtedly read a lot of information about your study programme. Leiden University employs various systems to provide information about programmes and courses and to facilitate communication between lecturers and students.

In Sci-Fi comic book Resist NOW!, wondrous adventures will illustrate possibilities to combat antimicrobial resistance. But the comic book will only be produced if enough money is raised to make the project into reality.

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Sex and power are closely linked, and this was certainly true in the former Dutch colonies. PhD student Sophie Rose investigated how sexual and love relationships influenced eighteenth-century power structures there. 'You can see that there was constant fighting over who stood where in the social hi…

In Bronze Age Europe many bronze objects such as axes, swords and jewels were deliberately left at specific spots in the landscape. PhD research by Leiden archaeologist Marieke Visser shows that these practices were expressions of people’s relationship with the world around them. ‘It was a completely…

Study information

The decolonisation war in Indonesia was violent partly because the Dutch military operated on the conviction that ‘an uprising had to be forcibly suppressed.’ This what historian Christiaan Harinck from the KITLV discovered in his PhD research.

Diplomauitreiking

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster R136, 60,000 years ago. The analysis reveals that five stars were involved in the event in the Tarantula Nebula.

The war between Ukraine and Russia is playing out not just on the battlefield but also on the geopolitical playing field of gas. Conflicts at the start of this century about this energy source were, says PhD candidate Ilia Barboutev, a precursor to today’s war.

The interdisciplinary, English-taught minor ‘Violence Studies’ looks at violence from very diverse scientific perspectives. What are the benefits from this approach? Students and lecturers evaluate: ‘This minor’s a goldmine’.

Study information

Leiden PhD candidate Jo-Anne Verschoor discovered that nearly twenty percent of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. ‘Bacteria are just like people,’ says Verschoor. Her research was published in the journal Communications Biology,…

Today, anyone wanting a new look for their living room watches a home decorating programme or buys an interior design magazine. In the eighteenth century, people went to an upholstry specialist, who would provide you with new wall coverings, curtains and much-needed accessories. PhD candidate Aagje…

Historian Eric Storm discusses how nationalism shapes our world in Princeton’s UP Ideas podcast.

Minuscule elementary particles from space colliding with Earth can give us an insight into the distant objects they come from. But first, you need to know how to catch them. With a Vidi grant from NWO, researcher Sjoert van Velzen will 'hunt' for neutrinos coming from exploding black holes.

Lecture

Lecture

Historians recently started preliminary research on Leiden University’s role in colonialism and historical slavery. Our knowledge about this is too limited and fragmented. They are looking with fresh eyes at Leiden’s archives and collections. An interview with historians Alicia Schrikker and Ligia G…

For the first time, we’re seeing what Euclid sees. The telescope’s initial observations have provided a wealth of new information about our universe. But according to cosmologist Alessandra Silvestri, this is just the beginning. The research helps us gain a deeper understanding of the past, present,…

In summer 2018 classical archaeologist Hanna Stöger passed away. At that moment she was in the midst of several cutting-edge research projects on the use of space in the Roman city of Ostia. To make sure that her groundbreaking work would not go unpublished, long-time colleagues Hans Kamermans and Bouke…

The stadtholder’s court in the Republic of the Seven United Netherlands has long been underestimated. Real courts and the associated court culture were to be found elsewhere in Europe. PhD candidate Quinten Somsen is trying to reverse this image. ‘The stadtholder’s court was actually very lively.’

Conference, Call for papers

A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…

Lecture