More than 700 visitors got to know the Science Faculty during the Leiden Science Family Day. People of all ages could enjoy fascinating experiments, tours, interesting lectures, spectacular nitrogen shows and various workshops. It was an informative day with many (future) scientists, amazement and,…

During the summer, staff of the Faculty of Archaeology travel to all parts of the world, initiating or joining fieldwork projects. Read some of their stories here!

On 7 June, the National Museum of Antiquities opened a mini exhibition 'Scanning for Syria'. The exhibition shows how Leiden archaeologists and Delft technical specialists make reconstructions of 3000-year-old Assyrian clay tablets. The originals, stored in museum depots in Raqqa (Syria), have been…

How do galaxies form? That is what astronomer Mariska Kriek will be researching in the coming years. She received an NWO Vici grant of 1.5 million euros to study galaxies in the early universe. ‘This research uses new and unprecedented observations from the James Webb Space Telescope (JWST). These allow…

No less than four Leiden research teams have been awarded a grant by NWO. On 27 July NWO honoured 21 applications in the Open Competition ENW-XL. NWO awards the grants to consortia in the exact and natural sciences who are doing unconnected fundamental research that is 'driven by curiosity'.

Art historian Elizabeth den Hartog has been studying medieval sculpture at Leiden University for 32 years. Like a detective, she searches buildings, books and archives in the hunt for the cultural meaning of unique sculptures.

Bodies come in all different shapes and sizes. For his PhD, Andries Hiskes researched the disabled body and the reactions it can bring.

American physicist and quantum computing pioneer Seth Lloyd is the 65th Lorentz professor. He will deliver the Ehrenfest lecture on 5 June, and several more lectures on quantum computing on 11, 18 and 25 June.

Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.

Boys with autism are more prone to develop physical complaints, depression and aggressive behaviour. Psychologists at Leiden University have discovered that this is mainly related to rumination. Publication in the Journal of Autism and Developmental Disorders.

Join this lecture from professor Daniel Aldrich at the Spanish Steps in Wijnhaven on Wednesday 3 November. Dr. Sanneke Kuipers, associate professor in Crisis Governance, will be the moderator of the lecture and she and professor Aldrich give us a preview of the event.

BA 3 student Dasha Derzhavets is one of the first students to be back in the lab at the Faculty of Archaeology. She is conducting experiments in the ceramic and experimental lab for her thesis. ‘It is different in the labs, a lot quieter, I can better concentrate on my work however.’

The SRON space research institute, Leiden University and the TU Delft are appointing six researchers to jointly carry out space research. The research will focus on exoplanets, the evolution of structure in the Universe and technology for developing new pioneering space instruments.

Take a walk through any city, and you are likely to come across a brightly coloured mural. Although these paintings often seem to serve solely as a backdrop for Instagram snapshots, art history professor Minna Valjakka says there are rich traditions and intricate histories that uncover more critical…

How can a single origami crease pattern be folded into two precisely defined target shapes? Researchers at AMOLF and Leiden University have created an ‘alphabet’ of 140 origami ‘puzzle pieces’ that allows them to do just that, as described today in Nature Physics. This discovery could help in the construction…

Deep observations made with the MUSE spectrograph on ESO’s Very Large Telescope have uncovered vast cosmic reservoirs of atomic hydrogen surrounding distant galaxies. The exquisite sensitivity of MUSE allowed for direct observations of dim clouds of hydrogen glowing with Lyman-alpha emission in the…

In 1800, French explorer Nicolas Baudin led an important scientific expedition to Tenerife, Mauritius, Australia, Timor and South Africa. He returned with hundreds of exotic bird species. PhD candidate Justin Jansen reconstructed this ‘catch’ in a weighty book and talked to us about the wonderful fi…

Tropical butterflies adapt to their environment to improve their chances of survival. The changes are triggered by hormone signals that transmit information about temperature to the butterflies' tissues. Biologist Ana Rita Mateus shows how a complex combination of environment, physiology and genetics…

Archaeologist Victor Klinkenberg examined an old Assyrian settlement in Syria, near to the IS stronghold Raqqa. 'Social life was more important than military life.' PhD defence 27 October.

Three young MI students have upheld Leiden's honour in the finals of the International Collegiate Programming Contest (ICPC). PhD candidate Ludo Pulles and Master's student Reinier Schmiermann travelled to Russia and came 15th out of 117 teams. PhD candidate Pim Spelier participated in the online contest…

Building the neutrino detector KM3NeT on the Mediterranean Sea floor has picked up pace. Five detection lines, each carrying eighteen detectors, have been sunk and installed, and the first measurement data are coming in, says neutrino physicist Dorothea Samtleben.

Astronomers from, among others, SRON and Leiden Observatory have discovered long-sought intergalactic gas with ESA’s space telescope XMM-Newton. This gas is one of the pieces of the puzzle to map the total amount of ‘normal’ matter in the universe. The research will be published in Nature on 21 June…

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…

The Pieter de la Court Medal is awarded annually by the Faculty of Social and Behavioural Sciences for an initiative by a student or group of students that, over the last academic year, has made a particular contribution to at least one of the Pieter de la Court themes. This year, this medal has been…

An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…

The Epic of Gilgamesh was a lifelong inspiration to artist Harry van Kruiningen. This tale from Mesopotamia about the adventures of Gilgamesh, the legendary king of Uruk, and his friend Enkidu is one of the oldest surviving epics in world literature. Despite its almost 4,000 year age, it still captures…

What rules should regulate AI, who should make them, and how will they be enforced in the digital arena?

Five thousand years before the common era (BCE), Proto-Indo-European, the mother of many languages that are spoken today in Europe, Central Asia and South Asia, originated in eastern Europe. PhD candidate Axel Palmér has combined a 175-year-old hypothesis with new techniques to demonstrate how descendants…

Rodrigo Ochigame’s project explores how AI redefines scientific evidence, aiming to help scientists critically navigate these transformations with the Veni grant.

Alumni event

She stands out for the moderate tone she takes in discussions on Dutch talk shows. Without judgement you can have an open conversation, criminal lawyer Natacha Harlequin learned in her student days in Leiden. ‘What I personally think of the alleged act doesn’t matter so much.’

Lecture, PCNI Research Seminar

PhD defence

Lecture, Talk

Lecture, CMGI Brown Bag Seminar

No more lectures and exams for the Radio Astronomy course taught by Michiel Brentjens. The corona crisis is a moment of reflection that has changed his whole way of teaching. Instead of being in front of the class, he lets his students build a radio telescope with paint cans.

From a ship that has been designed to tell you what maintenance it needs and when, to an intelligent journey planner for global goods transport. The three universities in Zuid-Holland are abuzz with AI research in the field of ports and maritime. Three researchers explain. Part two in a series of five…

Many students are finishing their master thesis on sustainability this summer. In this blog, we reflect on their topics, approaches, and goals by highlighting theses from Governance of Sustainability, European Law, Global Archaeology, Computer Science: Artificial Intelligence, Industrial Ecology, and…

Lecture, Research Seminar

Conference

Alumni event

PhD defence

An overview of awards and prizes granted to our staff and students in 2020, as well as special appointments at Leiden University and other institutions.

What happens to the different waste streams?

The Hague Journal of Diplomacy regularly publishes reviews of recent books within the field of diplomacy and global affairs.

Lecture, Leiden Yemeni Studies Lecture Series

Conference

Lecture, Seminar

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

Every year around 8 February, Leiden University, the oldest university in the Netherlands, is celebrating its birthday. Why does the King still receive a telegram on the day of the Dies Natalis? 4 questions on the origins of Leiden University and its traditions for celebrating its foundation day.