Organisation

Customisation is high on the political agenda, but how do you make it work? Many public organisations are struggling to find an answer to this question. Which steps are essential to effectively implement made-to-measure solutions within an organisation. The Leiden Leadership Centre (LLC) is organising…

The supermassive black hole at the center of the Circinus galaxy is being fed with gas by two spiral arms. This is what PhD candidate Wout Goesaert discovered. But only a small percentage disappears into the black hole, the rest is ejected.

PhD defence

When you think of humanities, you may not immediately think of a new super server. Yet one has just been commissioned. University lecturer Jelena Prokic from Leiden University Centre for Digital Humanities explains more about this development.

An international team of astronomers led by Matus Rybak (Leiden University) has proven, thanks to accidental double zoom, that millimetre radiation is generated close to the core of a supermassive black hole. Their findings have been accepted for publication in the journal Astronomy & Astrophysics.

Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.

‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…

Missiles that travel at approximately six thousand kilometres per hour, up to 5 or 6 times the speed of sound. Has Russia used those against Ukraine and how is that possible? In Leiden University’s Dutch video series ‘De Werkplaats’, Danny Pronk, political scientist, security expert, and researcher…

Elena Maria Rossi is fascinated by black holes. Her appointment as a professor was a long-held wish, partly because there are so few female professors in her field. ‘My appointment is also a milestone for the Leiden Observatory.’

An international team of astronomers led by Violeta Gámez Rosas (Leiden University) has observed a supermassive black hole hidden in a ring of dust. This discovery fits the idea that the so-called active centers of galaxies are much more similar than observations show, because the viewing angle from…

How are supermassive black holes born? That is the question astronomer Elena Maria Rossi is trying to answer. But how do you investigate something you cannot see?

The prestigious journal Science Translational Medicine has published a study by researchers from the Institute of Biology Leiden (IBL) on a potent new antibiotic that can overcome resistance. ‘The idea was to tweak the original antibiotic and create a next-generation drug’, says Nathaniel Martin, professor…

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…

In the 60s and 70s, Black Power groups were also active in the Kingdom of the Netherlands. This is what PhD candidate Debby Esmeé de Vlugt has discovered.

The antibiotic EVG7, developed in Leiden, has proven capable of fighting the dangerous gut bacterium C. difficile with only a minimal dose. What’s more, the bacterium is far less likely to return, a major issue with existing antibiotics. The research was published in Nature Communications.

Delve into the depths of black hole imaging as anthropologist Rodrigo Ochigame unveils the human decisions shaping its portrayal. Explore four alternative color choices at the 'Towards the Black Hole' exhibit, now showing at Rijksmuseum Boerhaave, Leiden.

How do we account for historical power dynamics when writing new histories of slavery and emancipation? What critical methods can we employ when studying preserved archives and collections? A new book series aims to address these questions. The initiators Karwan Fatah-Black and Ilse Josepha Lazaroms…

Touring the campus, meeting current students and taking part in an interactive seminar in the Lipsius building. After 1,5 years of online events due to the corona pandemic, a live Student for a Day took place again on Friday 24 September.

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

On Things That Talk, a website founded and developed by Fresco Sam-Sin, students and researchers describe objects from today and from long ago. By now, more than a hundred objects have been covered. Willemijn Waal, Emma Verweij and Frank van den Boom contributed to the content.

Only the fittest cyclists stand a chance of taking yellow in the brutal Tour de France. Team Jumbo-Visma is working with data scientists from Leiden. They have analysed the stages and performance of Jumbo-Visma’s riders in previous Grand Tours. And they are researching how to determine the fitness level…

Festival, We are Science week

The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…

That was the question physics and mathematics bachelor’s student Daan de Bos set out to explore during his thesis research. Applying machine learning theories to materials presented several challenges, but his efforts led to a working theory that can now be tested on real materials in laboratories.

PhD defence

Lecture, Oort lecture

Lecture, Studium Generale

Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…

Arts and leisure, Arts and leisure

PhD defence

Lecture, Oort lecture

Lecture

The special of the Dutch History Programme Andere Tijden 'Missie Geslaagd?' (Mission accomplished?) tells the story of the last fathers of the Holy Spirit Congregation who live in Gennep. Professor of Anthropology and Sociology of Africa Peter Pels is one of the specialists in this episode. He explains…

PhD defence

Education

PhD defence

Recent fieldwork at the vast desert region in north-eastern Jordan has revealed an immensely rich heritage of an area that is difficult to access and archaeologically less known. Professor Peter Akkermans was interviewed about his groundbreaking research in this area, known as the Black Desert.

Lecture

Lecture, Research Seminar Europe 1000-1800

In the article 'Dankzij Instagram hebben jonge vrouwen over de hele wereld hetzelfde gezicht' in the Dutch newspaper NRC of 4 November 2021, Cultural Anthropologist Jasmijn Rana (Assistant Professor at CADS) talks about what she considers problematic about the Instagram face. The article discusses the…

PhD defence

PhD defence