How did disability become a global concern? In this project we will identify the contribution of international agencies, governmental and non-governmental organizations and, just as importantly, disabled people themselves, to the IYDP and by showing the connections, interactions and entanglements between…

Researchers have discovered oxygen in the furthest known galaxy JADES-GS-z14-0. Leiden astronomers Sander Schouws and Rychard Bouwens were part of the team that made this discovery. This news was reported in all newspapers and online media.

They were called 'annoying brats', the group of campaigning scientists who in 1978 founded what is now an internationally acclaimed ecological research institute. Their stories and those of the current staff of the Institute of Environmental Sciences are described in the book 'Forty years of Leiden…

Since September 2001 Leiden University's Media Technology MSc program has educated modern academics, creative nerds, playful programmers, tinkering thinkers, and conceptual cross-disciplinarians. On May 13th, we celebrate!

The Leiden wall formulae, Einstein's sink or the signature wall of Ehrenfest. It are just a few of Leiden's hidden science treasures. Alumnus from the Leiden Observatory Alex Pietrow described a few of these places on travel website Atlas Obscura.

A flake of limestone (ostracon) inscribed with an ancient Egyptian word list of the fifteenth century BC turns out to be the world’s oldest known abecedary. The words have been arranged according to their initial sounds, and the order followed here is one that is still known today. This discovery has…

The Faculty of Archaeology proudly presents the research brochure Perspectives on the Past, featuring passionate, dedicated researchers introducing a dazzling scala of research topics: from present-day traditional knowledge in Africa to the power of glue in Palaeolithic Europe. In addition to these…

A team of laboratory astrophysicists from Leiden University managed to make glycerol under conditions comparable to those in dark interstellar clouds. They allowed carbon monoxide ice to react with hydrogen atoms at minus 250 degrees Celsius. The researchers publish their findings in the Astrophysical…

During the Masterclass “Archaeology from the Sky”, participating students have used small drones to acquire aerial photos from the Italian landscape of Molise. With sometimes amazing results.

In a publication in Science, Noam Zelcer from the Division of Biopharmaceutics describes a previously unrecognized pathway to regulate LDL-cholesterol levels. He is also able to modulate this pathway. This opens the possibility for complementing and improving the efficacy of statins: A class of drugs…

Leiden Law Practices (LLP)

In 2017, in an ordinary field, two brothers from Brabant discovered more than 100 ancient coins. The Leiden historian who examined the coins concluded that they constituted a genuine Roman treasure. Here follows a reconstruction in three acts.

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.

A team of researchers at the Institute of Biology Leiden, in collaboration with scientists from Utrecht University, has discovered a novel approach to improve the production of antibiotics and enzymes in the soil bacteria Streptomycetes.

Since 2000 the Leiden Student Council (LSR) yearly awards a prize for the best teacher of the university at the Dies Natalis.

The handbook is a wide-ranging survey of a crucial period in prehistory during which many social, economic, and technological changes took place. Written by specialists in the field, the book provides coverage both of the themes that characterise the period, and of the specific developments that took…

April 10 at 7 pm - April 12 at 8 pm

Moscow's Heavy Shadow tells the story of the collapse of the USSR from the perspective of the many millions of Soviet citizens who experienced it as a period of abjection and violence.

This reflection for Critical Studies on Terrorism, explores two decades of the 'War of Terror' and what it means today.

2017 was the Leiden Asia Year. Leiden has had connections with Asia and built up extensive knowledge of the continent over many centuries. This Leiden-Asia link has been in the spotlight for the past year.

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…

It is the dream of Professor Susana Chuva de Sousa Lopes to grow fertile egg cells in the lab. But she says there is a long way to go in her discipline until that is possible. This is the message of her inaugural lecture on 29 June 2020, the first digital inaugural lecture at Leiden University.

Physicist Diego Garlaschelli co-authored an extensive review in the journal Nature Reviews Physics. Surprisingly, the subject wasn't physics at all, but the networks of banks and other financial institutions, and the way their structure relates to financial crises.

Researchers at Leiden University have mapped genes that cause breast cancer cells to migrate. The Leiden toxicologists Professor Bob van de Water, Dr Wies van Roosmalen, Dr Sylvia E. Le Dévédec and colleagues studied 1500 individual genes. They found eight, including the SRPK1 gene, that regulate the…

The book 'The United Nations Convention on the Rights of the Child' is the result of the international academic conference – ’25 Years CRC’ – which was held in November 2014 in Leiden on the occasion of the 25th birthday of the UN Convention on the Rights of the Child.

How does language work and how do we learn a language? The more we know about language, the better we can understand how people interpret the world in words. Roberta D'Alessandro carries out research on the architecture of language. There is now a dossier about her work online.

At the start of the COVID-19 pandemic, researchers from 15 departments at Leiden University Medical Center (LUMC) realised they could do more for patients if they joined forces. This is how the BEAT-COVID group has been able to rapidly gain knowledge about COVID-19, the role of the immune system and…

In this project the already developed parcel based historical GIS (HISGIS) for the Dutch province of Friesland (Frisia) will be extended with a series of crucial datasets and map layers.

From a successful April Fool’s prank and alumni love stories to a fabulous float on 3 Octobe: these were the highlights of our year on our social media channels. Hope you’re following us?

This book connects labour history, global history and the institutional or political history of international organisations.

Our cameraman could regularly be found on location in 2019, reporting back on funny, remarkable and interesting University stories. This gave us films about our 444th anniversary, celebrated scholar Hendrik Lorentz and a Neolithic house in flames...

Bringing young, enthusiastic and driven academics from different disciplines together, that’s the goal of the Young Academy Leiden (YAL). As a new member, Assistant professor Jan van Rijn is excited to look at AI from different perspective. ‘I want to bring my expertise together with different point…

The risk of a brain tumour recurring can be predicted more accurately by counting the number of immune cells in the tumour under a microscope. These are the findings from research conducted by LUMC, Erasmus MC and Heidelberg University.

Leiden University is 444 years old this year! And we have big plans to celebrate this special birthday in 2019 - together with the people of Leiden and The Hague.

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

Curiosity and a passion for science - that’s what connects the people of FWN. Our Faculty is international and diverse, and together we create a great place to work. On this site, we celebrate our community by highlighting the nominees and winners of our Faculty Awards. Explore their stories and get…

The Faculty of Science celebrated the Chinese New Year on 26 January, with an event that was organised together with the Leiden Science China community. After a warm welcome and New Year Wishes by Dean Geert de Snoo, visitors could participate in various activities, such as a calligraphy lesson.

Covid year 2021 might have felt somewhat less strange than the year before, but the virus still left its mark on University life and our students and staff. Fortunately there was also room for research, visiting dignitaries and in-person classes. And our social media accounts weren’t only about covid…

As a critical commemoration of its centenary, this book presents a mosaic of one hundred carefully curated fragments by expert authors, shedding light on politics, economy, society, culture, gender, and arts in a hundred years of Turkey.