The Netherlands Council of State ruled at the end of March that WhatsApp and text messages on the work and private cell phones of civil servants are considered to be official records. This decision puts the government in a difficult position. How are you going to store millions of texts and WhatsApp…

The new Erfgoed Gezocht/Heritage Quest website means you can play armchair detective and hunt for undiscovered burial mounds in the Veluwe. This will help stop them being destroyed by construction projects. The website is the initiative of the Leiden University Faculty of Archaeology in collaboration…

If European countries rely solely on technological advances, they won't be able to limit global heating to 1.5 degrees. Households will also need to change their lifestyles. This 'inconvenient truth' is the result of calculations done by industrial ecologist Stephanie Cap. ‘It's not a popular message,…

Alumnus Vincent Renken studied Bio-Pharmaceutical Sciences in Leiden and is now co-founder of an outdoor escape room company. ‘I asked myself: do you want a standard life or an adventure?’

September 26 is the European Day of Languages. There are 24 official languages in Europe but some 200 languages in total are spoken on our continent. What good are all these different languages? And should we all learn Azerbaijani or Swedish? We asked Lisa Cheng, Professor of General Linguistics.

Students stream into the lecture hall, handing in their mobile phones at the door. Once everyone’s seated, silence descends and all eyes turn to the large screen at the front of the lecture hall. A live connection has been set up with the prison where Marco is a long-term inmate. Today, the students…

It is important for social animals to be able to recognise one another quickly. Humans are able to recognise each other immediately from their faces. Faces are also important for chimpanzees, but a new study by neuropsychologist Mariska Kret in PLOS ONE shows that the animals' buttocks also play a…

Various Leiden researchers have been awarded a European grant to explore the commercial or societal potential of previous research.

Simulation project EAGLE has won the 2022 Group Achievement Award of the Royal Astronomical Society. EAGLE is a large collection of simulations about the formation of galaxies. The largest simulation contains as many as 6.8 billion particles and took months to calculate on the world's fastest superc…

This speech from the throne was a little less woolly than last year's, you might think. Gerard Breeman and Arco Timmermans know that for sure. Breeman and Timmermans from the Institute of Public Administration have been analysing the speech from the throne for years. Just like Tuesday 15 September 2020.…

Eight early-career researchers from around the world have been awarded a 51 Pegasi b Fellowship – a prestigious opportunity for astronomers. Julia Santos, a PhD candidate at Leiden Observatory, is one of them. We asked her four questions about this remarkable fellowship.

Chrisandya Sinurat (Sandy), an alumnus of the International Civil and Commercial Law Program from Leiden University, has been awarded the gold medal in the research competition of the International Insolvency Institute’s (III) 2024 Prize in International Insolvency Studies. Sandy was honoured to be…

On 11 June 2023, the International Insolvency Institute (III) announced its 2023 prizes in International Insolvency Studies during its 23rd Annual Conference in Amsterdam. Raghav Mittal from Leiden University was honoured to be a recipient of the Bronze Medal for his paper on Equity retention in SME…

It can seem like an almost childish mistake, but a surprising number of adults confuse left from right. Neuroscientists are only just starting to know more about directional and navigation and understand why it is so difficult to distinguish left from right . Ineke van der Ham is an expert on navigation.…

Scientific methods and techniques have been employed in archaeological research since the very birth of the discipline. It is impossible to imagine modern archaeology without this expertise in archaeological sciences. These archaeological sciences take centre stage in the new temporal exhibition at…

An international team of researchers led by Leiden archaeology professor Marie Soressi and Leipzig senior geneticist Matthias Meyer has recovered the DNA of a woman belonging to an Ancient North Eurasian population from a 20,000-year-old pendant. This is the first time DNA analysis has been used to…

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.

Apply now for the fourth LUCIS Summer School on Philology and Manuscripts from the Muslim world, which will take place from Tuesday 23 August until Friday 2 September 2022 in Leiden. The deadline for applications is Friday 27 June 2022.

On Tuesday 23 January the Creative Intelligence Lab and Media Technology MSc program welcome Ziv Epstein from the Stanford Institute for Human-Centered AI to Leiden. He will give the public keynote to close off our 7th annual Social Technologies Symposium, entitled "The Art and Science of Social Scrying:…

Researchers from the University of Oxford’s Bodleian Libraries and from universities in the Netherlands have used high-tech imaging to uncover the details of a rare Mexican codex dating from before the colonisation of America.

Dr Moritz Jesse, Associate Professor of European Law at the Europa Institute Leiden, was sharing his thoughts on the transition from asylum seeker to refugee from a perspective of immigrant integration in Prague.

We often assume that highly gifted children always perform at maximum capacity. Psychologist Bart Vogelaar discovered that this group too benefits from training and explanation. Strangely enough, the benefits are the same for both groups. PhD defence 18 January.

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 Economic Community of West African States (ECOWAS) has formally approved the withdrawal of Niger, Mali and Burkina Faso from the regional body. The approval comes just days after President Bola Tinubu promised German President Frank-Walter Steinmeier that ECOWAS would handle the three countries'…

So much has happened this year! 2023 was an eventful year in which several wars raged about which our experts could offer interpretation. It was also the year in which the government made apologies for the slavery past. Leiden humanities scholars were at the forefront of this with their research on…

In a sailboat, a canoe or stowed away on a ship: during the Second World War, many Leiden students tried to cross the sea to join the Allies in Britain. ‘Soldier of Orange’ is the most famous, but who were the other ‘England voyagers’ or Engelandvaarders as they are known?

Most people talk about truck drivers rather than to them. That’s an error of judgement, says PhD candidate Anke van der Hoeven, who explains why we should be making their lives easier. ‘People just don’t realise it, but they’re an invisible group that keeps the European economy running.’

Leiden University contributed to colonialism and slavery through its research and teaching. And governors and residents of Leiden had an active role in colonial networks. These are the findings of two explorative studies presented on 3 April.

On January 25th, artist Jonas Staal will defend his dissertation which explores the development of propaganda art from the 20th to the 21st century.

What moral concerns do people have when they encounter the financial sector in their everyday life? Erik Bähre's ERC consolidator project 'Moralising Misfortune: A comparative anthropology of commercial insurance’ aims to find out. In collaboration with Brechtje Boeke, five short documentaries from…

Collaboration within Europe is currently at a low ebb. This is threatening to undermine our freedom and the rights that are anchored in the European legal order, says Piet Hein Donner, Vice-President of the Council of State and Cleveringa professor at Leiden University for 2015. His lecture on 26 November…

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…

Alumnus Sam van Raalte followed his passion into freelance journalism.

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.

'How do you write a slogan to win an election?' Steven Ooms answers this question in his PhD research into ideas about good prose in the time of Caesar and Emperor Augustus. This period is considered a high point for the development of literature. The Roman Cicero and the Greek Dionysius of Halicarnassus…

This summer, Leiden University will be setting up camp at Lowlands with two research projects. Participants are invited to explore their fears and feelings, and in doing so, contribute to scientific research.

The Sixteenth International Conference on Parallel Problem Solving from Nature (PPSN XVI) will be held in Leiden, The Netherlands on September 5-9, 2020. Leiden University and the Leiden Institute of Advanced Computer Science (LIACS) are proud to host the 30th anniversary of PPSN.

The 'language analysis interview' on the basis of which the Immigration and Naturalisation Department attempts to determine where an asylum-seeker without any documents comes from, does not meet the criteria of reliability and validity. Joachim Detailleur, student of Arabic, substantiates this statement…

Professor Ewine van Dishoeck, together with an international team of colleagues, has written an overview of everything we know about water in interstellar clouds thanks to the Herschel space observatory. The article, published in the journal Astronomy & Astrophysics, summarizes existing knowledge and…

When university lecturer Martine Bruil was on exchange in Ecuador as a teenager, she fell in love with the area's ancient languages. Now, more than 20 years later, she is starting a research project on the kinship of the language Awapit with the Quechua language that was spread by the Incas.

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

Researchers have used AI to reconstruct the rules of a board game carved into a stone found in the Dutch city of Heerlen. The team concludes that this type of game was played several centuries earlier than previously assumed.

Apply now for the LUCIS Summer School on Philology and Manuscripts from the Muslim world, which will take place from Tuesday 15 August until Friday 25 August 2017 in Leiden. The deadline for applications is Friday 16 June 2017.

What do you do when you get the chance to meet Nobel Prize winners in your field? You say ‘yes’, of course! Two young chemists from Leiden had the opportunity to attend the Nobel Laureate Meeting in Lindau, Germany. They share what the experience was like.

PhD defence

Using enslaved people as servants, becoming an administrator in the Dutch West India Company or making uniforms for the colonial army. Many people from Leiden played a role in colonialism and slavery. Historians are conducting preliminary research and finding striking examples.

Compared to its European neighbouring countries, the Netherlands undertake relatively few attempts to bring back women and children from Iraq and Syria. De Roy van Zuijdewijn explains why on Dutch NPO 1 radio.

The analysis of protein residues extracted from the storage containers of circa 50,000 year old bone-tools reveals Neandertal strategic selection of bovid ribs to make some of their “lissoirs”.

Lecture, SMILE Talks

A pandemic of lianas is sweeping through tropical forests, reducing their ability to store carbon and limiting their role in mitigating climate change. Two recent studies from Leiden University highlight the issue. ‘We now understand why lianas are visible in satellite imagery.’