Hoping to learn something about the human brain, Leiden researchers are creating a setup to shoot single photons, particles of light, into someone’s eye. ‘The eye is a passageway to the brain.’

This week Dr. Lara Weiss (of the National Museum of Antiquities in Leiden), who together with Dr Christian Greco (of the Museo Egizio in Turin) heads the project "The Walking Dead: The Making of a Cultural Geography in Saqqara", was visited by the NVIC team. During the visit she introduced them to the…

The METIS instrument that’s being built for ESO's future Extremely Large Telescope (ELT) in Northern Chile under the leadership of the Dutch Research School for Astronomy (NOVA) has reached an important milestone: the preliminary design has been approved.

Microscopic swimmers such as bacteria do not always swim alone. There are advantages to exchanging information and cooperating. Stefania Ketzetzi and colleagues now show in Nature Communications that human-made microswimmers, too, can cooperate.

To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…

The objectives of the 2011 campaign Tell Balata Archaeological Park are to carry out excavations, promotion and awareness, community involvement, gathering oral histories and educating children. The objectives are described in a handout produced for the opening ceremony on June 21st 2011.

The Defence White Paper, titled ‘Strong, smart and together’, is debated in the House of Representatives along with the Defence Budget and raises concerns especially in uncertain times.

Our solar system probably evolved in the same way as most of the other planetary systems around us. This has been shown by German-Austrian-Dutch research on more than 870 planet-forming disks in the Orion cloud A. The five researchers, including three from the Leiden Observatory, published their findings…

For already two years, Vincent Niochet has been affiliated with the Leiden Faculty of Archaeology as an external PhD candidate. Now, he has been awarded an NWO PhDs in the Humanities grant, allowing him to continue his research as a paid PhD staff member. ‘The past two years have been quite challenging,…

Cut marks on the bones of bears show that people in North-West Europe used bearskins to keep warm 300,000 years ago.

As the father of a family with four children, he already visited the Hortus regularly. Now Tom Schreuder also comes there for his work. Every day he travels from Lisse by bike. The new Director Operations calls it a ‘perfect match’.

CERN has approved the construction and operation of SND@LHC, a neutrino detector at the Large Hadron Collider. It's a precursor for SHiP, a detector meant to detect dark matter. Leiden physicist Alexey Boyarsky is one of the initiators of both SHiP and SND@LHC.

This academic year, researchers from both inside and outside of Leiden Law School took the opportunity to inform the interested public about their ongoing research during the monthly ILS Lunch Seminars. On Thursday 14 June, the last lunch seminar before the summer break took place. The festive ending…

Dutch people are proud of the fact that genever, their national drink, was the prototype for gin, the now so fashionable British spirit. And Leiden people are proud of their Professor Sylvius, who invented genever in the seventeenth century. But is this really true?

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.

Thanks in part to the persistence of a Leiden research group, cancer could be detected in the near future with just a single drop of blood. Not only can the diagnosis be determined at an earlier stage, but the blood test is also cheap, fast and patient friendly. The first results of this method seem…

17 November is International Student’s Day, dedicated to showcasing the international experience of international students in the Netherlands.

After three (or four) years of hard study, there are every year a lot of Bachelor students that say goodbye to go and explore the wide world. Where are they going next? And what will they miss most about our beautiful city? For the coming weeks, we will tell the stories of 6 recent Bachelor graduates…

How is it that the internet works so well, with billions of users sending millions of gigabytes all together every day? That's because the foundation of the internet is solidly set up. Yet sometimes there are problems on the internet. For example, when certain systems misbehave and disrupt the routing…

TRI Leiden has been strongly involved, together with Nottingham Law School, in the development of the EU Cross-Border Insolvency Court-to-Court Cooperation Principles (‘EU JudgeCo Principles’). They were finalised in February 2015 and recently a book has been published. During a business rescue conference…

The ERC Council has awarded Starting Grants to five promising Leiden researchers. With an impressive three laureates, the Faculty of Social and Behavioural Sciences has done particularly well. The fourth grant goes to the LUMC and the fifth to the Faculty of Governance and Global Affairs.

On Friday 17 April Leiden Mayor Henri Lenferink will officially open the new Metabolomics Facility of Leiden University. The facility’s ultimate goal is to prevent disease and to improve health throughout the human lifespan.

Two Stolpersteine (stumbling stones) have been placed in front of the University Library in memory of the Jewish Cosman family. At the time of the Second World War, they lived in one of the houses where the library is now located.

Always wanted to find out what zero gravity is like? Now's your chance! In December 2017 a Dutch student team will be conducting experiments during a parabolic flight, and they're looking for healthy volunteers. You do have to meet a number of strict conditions, says the team leader.

Over the past months regular updates have been provided on the work of the Leiden Turnaround, Rescue & Insolvency team (TRI Leiden) in creating EU Cross-Border Insolvency Court-to-Court Cooperation Principles. During the last week of January this project was finalised, resulting in 26 EU Cross-Border…

Research master's student in history Jesse Dijkshoorn collaborated on a transcription system for medieval texts. ‘It’s nice to make the Middle Ages accessible to people.’

How wonderful would it be to use art, technology and science in Ukraine's recovery? Young Ukrainians currently residing in Poland get guidance to develop creative programmes and activities that can later be implemented. Leiden astronomers Pedro Russo and Kateryna Frantseva cooperate in the project.

At the International Online Conference 'Fair Medicine and Artificial Intelligence' organised by the University of Tübingen (Germany), Hadassah Drukarch, junior researcher at eLaw, gave a presentation on how current algorithmic-based systems may reinforce biases in healthcare. This topic forms part of…

Scientists have developed a material that breaks one of the fundamental principles governing many physical systems. Ordinary materials transmit external forces equally, no matter where the pressure comes from. The newly developed material breaks this rule and could potentially be of interest in soft-robotics…

The rare Ethiopian wolf is increasingly coming into contact with local cattle farmers. PhD candidate Girma Eshete explored ways of saving this elegant animal from being wiped out. Phd-defense on 5 September.

Mahmood Kooria shows in his dissertation that Islam often adapts to the regional context. PhD defense 14 December.

A cover over your drink in the pub, deodorant as pepper spray or headphones to avoid hearing catcalling: many women use everyday objects to feel safer in public spaces. Student Anne van der Linden made an online exhibition about this.

'With this artwork, I want to give the audience a glance into my overstimulated brain and that of other people with autism', says Jasmijn den Hoed. The Faculty of Social and Behavioural Sciences is exhibiting her artwork 'Overstimulated' in the restaurant near the blue wall during Autism Week 25 March…

Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.

The Greek alphabet dates back to the eighth century BC. At least, that is what science assumed for a long time. Associate Professor Willemijn Waal is going to use a Vici grant to investigate whether the Greek alphabet may be centuries older, and was initially written only on perishable materials.

'How is the Dutch government tackling the corona crisis?' and 'what are the most important aspects for such approach to succeed?' are questions that Dr. Sanneke Kuipers and Mr.drs. Wouter Jong explore in their article for the Montesquieu Institute.

On Wednesday, September 17, 2025, Prof.dr. Sarah Cramsey convened a book manuscript event at the beach of Wassenaar near Leiden to discuss her new book 'Caring through Catastrophe: Jewish Children and their Caretakers during the Holocaust' which is under contract with Indiana University Press.

Below we present our past and future events of the Multigreen project

An organized overview of the current global fungal diversity, that is what Irene Martorelli and colleagues try to achieve with the new MycoDiversity Database (MDDB) she builds in collaboration with Naturalis Biodiversity Center. The new database will make it easier and quicker to observe which fungi…

An international team of astronomers that includes researchers from Leiden has discovered the most distant galaxy yet. The galaxy, called EGS8p7, is 13.23 billion light years away from Earth and already existed when the universe was only 550 million years old.

On Thursday, May 16, Leiden University Libraries is organizing a workshop on early photography of the Middle East. In the workshop, curator Maartje van den Heuvel shows photos of three adventurous Dutch nineteenth-century travel and photography pioneers. They created beautiful photos and photo albums…

Eight major scientific consortia are to receive research investment funding from the Netherlands Organisation for Scientific Research (NWO. Leiden University is involved in all these project and is the lead applicant for four of the awards.

‘Working in Leiden is a dream come true.’ Ákos Kovács studied in his birth country Hungary and worked in Germany, Denmark and Groningen. As professor of Microbiome Ecology at IBL, he immediately started working together with his new colleagues to make discoveries about the versatile bacterial species…

Stijn Bussels will attend the two-day conference on The Tableau Vivant – Across Media, History, and Culture at the Colombia University of New York. He will deliver a paper on ‘‘Restored Behaviour’ and the Performance of the City Maiden in Joyous Entries into Antwerp’.

The European Research Council, better known as the ERC, turns ten this year, and researchers from Leiden celebrated this on 23 June. The ERC is an important provider of research funding, also to Leiden University. Over the past ten years researchers from the University have been awarded over 70 ERC…

Scientists remain puzzled by the sudden extinction of Neanderthals, some 40,000 years ago. New research by scientists from Eindhoven University of Technology, Leiden University and Wageningen University now suggests we might have been too quick in attributing the demise of Neanderthals to invasions…

There are times when an insolvency practitioner has to weigh his role in administering bankrupt estates. This was the message of Professor Reinout Vriesendorp's inaugural lecture that took place on 24 June 2016. According to Statistics Netherlands, 5,271 companies were declared bankrupt in 2015.…

Are you looking for some listening material for the upcoming long weekend? Staff members and alumni of the Faculty of Humanities have been creating various podcasts over the last few months. A selection is shown here:

A KIEM grant was recently awarded to a diverse group of Leiden researchers, aiming to organise an interdisciplinary conference with the title ‘Ancient Religions and the Materiality of Danger’ in 2026. The topic of the conference marks a shift towards the study of the role of objects.

Many students on the Master’s programme in International Relations and Diplomacy had their internship cancelled last year because of the pandemic. As an alternative, together with Professor of International Relations Madeleine Hosli, they wrote a book: The Future of Multilateralism.