Jeanine de Roy van Zuijdewijn, PhD candidate at ISGA, explained the dilemma countries face in the aftermath of terror attacks.

The renovation of the South Cluster has been in full swing over the recent period. As the completion date approaches, no later than 1 April, we're excited to provide you with a glimpse of the current state of the building.

‘Countering violent extremism – the international deradicalization agenda’ is the name of the book Tahir Abbas published last month. In this interview the associate professor in Terrorism and Political Violence at ISGA tells about the backgrounds and goals of the book.

Safety and security risks ranging from cybercrime to terrorism threats are a growing concern worldwide. Technological developments have made security issues increasingly complex. This is typically a topic for the multidisciplinary Leiden-Delft-Erasmus Universities (LDE) curriculum.

Today, Leiden University announces who the new Cluster Zuid on the Witte Singel will be named after. Summer 2023, a ballot determined the name of the complex on the former Van Wijkplaats/Van Eyckhof, which is expected to be completed in March. It was already established that the complex would be named…

The Capacity to Innovate is a recently published book by Sarah Giest, Assistant Professor at the Institute of Public Administration. In this article Sarah gives insight in the main findings of the book and the experience developing it.

The new Cluster Zuid building is progressing steadily. The glass roof over the atrium has been installed and the window frames are being fitted. The future locations of the offices and classrooms are also becoming increasingly visible. See Stijn Poelstra's photo report below.

A lot has happened at Cluster Zuid since the highest point of the building was reached in December. See the photo report below.

At the International Federation of Classification Societies (IFCS) conference 2022 in Porto, psychologists Tom Wilderjans, Jeffrey Durieux and Julian Rossbroich won the IFCS Cluster Benchmarking Challenge. They wrote the best paper on benchmarking and were awarded with an official plaque and book voucher…

Just a few years ago, jihadist terrorism was seen as Europe’s most pressing threat. Today, we are facing hybrid warfare and extremist groups that are undermining our safety from within. Bart Schuurman, Professor of Terrorism and Political Violence, calls for a different kind of research.

There has been good progress with the new South Cluster construction through the summer months. All the door and window frames are now in place, the building will soon be wind and watertight and the interior finishing has already begun. The work will be completed in the months ahead, with the building…

An international team of astronomers has discovered a large reservoir of hot gas in the cluster-in-formation around the Spiderweb Galaxy. Based partly on that hot gas, the astronomers predict that the cluster-in-formation will grow into one of the largest objects in the universe. A step closer to discovering…

Now that the South Cluster is reaching its concluding phase, we are looking ahead to the next building to be developed in the context of the Humanities Campus: Matthias de Vrieshof (working title: North Cluster).

Astronomers have used data from the European Gaia Space Telescope to discover 55 high-speed stars launched from the young star cluster R136 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This increases tenfold the number of known “runaway stars” in this region. The team of astronomers,…

Terrorism expert Bart Schuurman has been appointed professor. As a researcher and lecturer at ISGA, he has witnessed the terrorist threat evolve and broaden. 'How can we explain these shifts and protect our society against them? That is what I want to focus on more,' he says.

Astronomers have captured a new deep field of Pandora's Cluster (Abell 2744) with the James Webb Space Telescope. The images show never-before-seen details. The results are described in four scientific papers. Leiden astronomers Marijn Franx and Mariska Kriek collaborated on the study. 'This opens a…

Extremely painful chronic cluster headaches – sometimes referred to as ‘suicide headaches’ – can be prevented by stimulating the occipital nerve in the back of the head, according to research conducted by Professor Emeritus of Neurology Michel Ferrari from Leiden University Medical Center (LUMC). The…

Concrete pillars without a roof, windows without glass, storeys without walls. It’s clearly evident that the South Cluster is being dismantled. Take a look at the photos!

The construction work on the South Cluster is going ahead throughout the summer. See the photo's and the video below!

The South Cluster - the former Van Wijkplaats/Van Eyckhof on Witte Singel - is currently undergoing an impressive transformation. On 25 October, more than 100 enthusiastic colleagues witnessed the progress of the renovation during a series of tours of the building.

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 European Space Agency (ESA) has published an interim data release from Gaia, the space telescope mapping out the Milky Way in 3D. The first scientific papers published today reveal half a million stars in the Omega Centauri globular cluster, nearly 400 candidate gravitational lensers and the positions…

The start of the renovation of Cluster Zuid was a long time coming, but the moment has finally arrived. On Wednesday 8 June, Dean Mark Rutgers, accompanied by the contractor Constructif, symbolically marked the start of the demolition and reconstruction works by demolishing part of the roof.

People already diagnosed with a mental disorder before the COVID-19 pandemic did not show a disproportionate increase in symptoms afterwards. This is one result from the first systematic review of longitudinal studies following their study population from before to during the first eighteen months of…

Isabelle Duyvesteyn, Professor of International Studies and Global History at the Institute of History and member of the advisory board of Leiden University’s Centre for International Relations (LUCIR) is widely regarded as an expert on civil wars and conflicts. Her new book, Rebels and Conflict Escalation,…

Terrorism is not a successful communication strategy. After an attack, the attention quickly shifts from the terrorists to authorities and citizens. This is what Jeanine de Roy van Zuijdewijn argues in her dissertation: 'The aftermath: meaning-making after terrorist attacks in Western Europe'. ‘A year…