Two teams of astronomers, including one from Leiden University, have discovered oxygen in the most distant known galaxy, JADES-GS-z14-0. This groundbreaking discovery shows that galaxies could form much faster in the early universe than was previously thought.

Visitors to Leiden's City Hall and the University Library can visit the 444 Years of Leiden University exhibition from 25 January.

This summer, everyone from Leiden locals to day trippers and tourists can take a guided tour of the prettiest University buildings in the centre of Leiden. Our exclusive Summer Tours offer a glimpse behind the scenes at the Academy Building, the P.J. Veth building and Bibliotheca Thysiana: buildings…

For decades, this prize has highlighted rising scientific talent — young researchers who often go on to make their mark in the field. Here you can explore how the award began and discover the many promising scientists who received it over the years.

Scientists have long assumed Neanderthals simply lost the evolutionary race against humans. But their disappearance may be a bit more complex. In Discover Magazine, Gerrit Dusseldorp sheds light on this illusive question.

Psychologist Hilmar Zech found that overweight people are actually more attracted to food pictures after eating than before. He did so using an old research method that he revamped for use on smartphones. Zech will defend his PhD on 30 April.

In 2019 Leiden University was 444 years old. This special birthday called for a special celebration. We celebrated this milestone with the residents of Leiden and The Hague. In, with and for these two cities.

Controlling fire was a turning point in the development of human civilisation. But how did fire become part of the human toolkit? The BBC radio show CrowdScience discusses the topic with Leiden archaeologists Andrew Sorensen and Kathy MacDonald.

Nicky Boer is enrolled in the Educational Master’s Programme in Social Studies/Social Sciences at ICLON, the Leiden University Graduate School of Teaching.

Astronomer Alexander Mushtukov, currently working at the University of Amsterdam, received a Veni grant of 250,000 euro’s which he will execute in Leiden. Supervised by Simon Portegies Zwart, Mushtukov will use advanced simulations to understand the unknown physics in extremely bright neutron stars.

Research of the Leiden Institute of Chemistry into the development of a sustainable fuel cell has accidentally resulted in an exceptionally efficient catalyst for the production of hydrogen peroxide. The catalyst, discovered by Dennis Hetterscheid and PhD candidate Michiel Langerman, may lead to a more…

Leiden scientists have discovered a new plant genus with two new species at a potential nickel mine site in Indonesia. Remarkable characteristic of the plants: they store manganese in their leaves.

The combination of data science and sports is a hot topic. In a talk during the opening of the Academic Year at the Faculty of Science, Professor Joost Kok explained what data analytics can teach us about sports.

Leiden University College (LUC), an institute of Leiden University in The Hague – the international city of peace, justice, and security – offers the English-taught Bachelor's degree in Liberal Arts and Sciences: Global Challenges since 2010. Inspired by the American university college model, LUC combines…

Leiden University College (LUC), an institute of Leiden University in The Hague – the international city of peace, justice, and security – offers the English-taught Bachelor's degree in Liberal Arts and Sciences: Global Challenges since 2010. Inspired by the American university college model, LUC combines…

Ahead of the times? We’ve been that for over 450 years. As the oldest university in the Netherlands, we’ve sailed through the centuries with our sights fixed firmly on the society of the future. Our anniversary in 2025 was a chance to look back too. A chance to celebrate the impact of our research and…

How many men and women die per year at the hands of others? What are the motives behind these killings? Are there as many homicides today as years ago? How can we explain the rise and fall of homicides over time? And: What is the influence of (early) childhood and adolescence on the likelihood to commit…

Over the past few years, citizen scientists from the Heritage Quest project have scoured the entire Veluwe and Utrechtse Heuvelrug areas for unknown archaeological heritage. One of the results of this research is that the number of known burial mounds in this area has doubled.

A unique archeological find near Tombos in Northern Sudan. Archaeologist Sarah Schrader from Leiden University, working with a team of international researchers, has discovered a grave of a ritually buried horse that is over 3000 years old. Both the grave and the skeleton are in perfect condition. The…

200 years ago, in 1818, Caspar Reuvens was appointed Professor in Archaeology at Leiden University. This was effectively the start of the academic study of archaeology in the Netherlands. To celebrate this occasion, the faculty organises events related to the future of archaeology throughout the yea…

The opening of the Academic Year 2019-2020 took place on Monday 2 September 2019 in Pieterskerk church.

The opening of the Academic Year 2024-2025 took place on Monday 2 September 2024 in the Pieterskerk church.

De opening of the Academic Year 2021-2022 took place on Monday 6 September 2021 in Pieterskerk church.

The opening of the Academic Year 2017-2018 took place on Monday 4 September 2017 in Pieterskerk church.

De opening of the Academic Year 2023-2024 took place on Monday 4 September 2023 in Pieterskerk church.

De opening of the Academic Year 2022-2023 took place on Monday 5 September 2022 in Pieterskerk church.

Researchers from Leiden University Medical Center (LUMC) have discovered how malaria parasites escape the immune system of mosquitoes. The so-called QC enzyme changes proteins on the outside of the malaria parasite such that the immune cells are unable to recognise the parasite. As a result, the parasite…

Leiden's Boerhaave Museum and Leiden University Medical Center (LUMC) have discovered parts of a skeleton in an 18th-century manikin. The manikin was once used as a teaching aid for midwives. As far as we know, this is the only one of its kind in the world.

The opening of the Academic Year 2018-2019 took place on Monday 3 September 2018 in Pieterskerk church.

Leiden University opened its doors in 1575 – the very first university in the Netherlands. The law faculty was involved from the start and so in 2025 they, too, were celebrating their 450th anniversary.

This volume contributes to the scholarly debate regarding the reception of Cicero and focuses on one particular moment in Cicero’s life: the period from Caesar's death (March 44 BCE) up to Cicero’s own death (December 43 BCE).

The opening of the Academic Year 2020-2021 took place on Monday 31 August 2020 in Pieterskerk church.

The opening of the Academic Year 2016-2017 took place on Monday 5 September 2016 in Pieterskerk church.

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.

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…

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…

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…

Are you exploring the options for a master's programme? If so, come to our Master's Day on 10 March. You can visit the presentations by the different programmes and ask all your questions of the lecturers, students, alumni and study advisers. And you can also get to know the best student cities in…

The number of students at Leiden University in The Hague is growing every year. From 21 to 25 August more than a thousand new students were given an introduction to The Hague during the HOP week. From museums to embassies and from international organisations to a day at the beach: The Hague has it…

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…

New ALMA observations show there is ordinary table salt in a not-so-ordinary location: 1,500 light-years from Earth in the disk surrounding a massive young star. Though salts have been found in the atmospheres of old, dying stars, this is the first time they have been seen around young stars in stellar…

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.