Space telescope Euclid is capable of unravelling the secrets of the universe. That is what the images published by ESA today show, according to astronomers working with the telescope's data. The images exceed all expectations. Scientists within the Euclid consortium, including astronomers Henk Hoekstra…

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele

The alignment of the James Webb Space Telescope is complete. The space observatory is able to capture sharp, well-directed images with each of its four powerful scientific instruments on board. The MIRI instrument, on which Professor of Molecular Astrophysics Ewine van Dishoeck also worked, was the…

A new technique using fluorescent imaging to track the actions of enzymes might aid drug design for new anti-cancer, inflammation and kidney disease treatments. Researchers at the University of York and Leiden University have published these findings in Nature Chemical Biology.

Mr. S. Al Daghistani defended his thesis on 30 November 2017

The Leiden Centre of Data Science and the Leiden Institute of Advanced Computer Science are part of a consortium that will carry out research on making illustrated and handwritten archives digitally accessible. The project is funded by NWO.

Hak, lawyer, international imagery law lecturer, and adjunct associate professor, talks about his PhD research on the use of images in international criminal prosecutions. He was a public prosecutor in Canada for over 30 years and dealt primarily with the prosecution of homicides and other major cri…

In this dissertation the author digs into the constituent elements of River Plate tango in order to decode how specific musical materials were organized and combined by four outstanding musicians: Pugliese, Salgán, Piazzolla and Beytelmann.

PhD defence

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

Research using the ALMA telescope by scientists including Leiden's John Tobin and Steven Bos has produced the first images of the water snow line within a protoplanetary disc. Publication in Nature on 14 July.

For the first time, astronomers have managed to take a photo of a supermassive black hole and its shadow. They used the Event Horizon Telescope (EHT), a worldwide network of eight radio telescopes that together form a virtual telescope the size of the earth. The news was presented in six press conferences…

Visualizing the internal structure is a crucial step in acquiring knowledge about the origin, state, and composition of cultural heritage artifacts. Among the most powerful techniques for exposing the interior of cultural heritage objects is computed tomography (CT), a technique that computationally…

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The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…

Drug-induced liver injury (DILI) is one of the main reasons for drug attrition during pre-clinical and clinical phases of drug development as well as for drug withdrawal post-marketing.

How to reconstruct the middle parts (videlicet haute-contres, tailles and quintes) from French orchestral pieces, which survived only in their reduced forms (featuring primarely dessus and continuo), according to historical examples?

On 3 December 2019, Hanna Bosdriesz defended her thesis 'Furthering the fight against impunity in Latin America: the contributions of the Inter-American Court of Human Rights to domestic accountability processes'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. M.A.H. van…

On 5 September 2019, Jennifer Doekhie defended her thesis 'Dimensions of desistance: A qualitative longitudinal analysis of different dimensions of the desistance process among long-term prisoners in the Netherlands'. The doctoral research was supervised by Prof. P. Nieuwbeerta.

An international team of astronomers has published the most sensitive images of the Universe ever taken at low radio frequencies, using the International Low Frequency Array (LOFAR). ‘LOFAR is unique in its ability to make high-quality images of the sky at metre-wavelengths’, said Huub Röttgering, Leiden…

Queen Juliana was not, as is often claimed, a monarch with an unstable character who was completely under the influence of spiritual healer Greet Hofmans. Furthermore, her religious circle of friends was not a sect with a political agenda. That is what Han van Bree concludes on the basis of a new archival…

Promotor: K.J. Batenburg

Lecture

Salt crystals, a nano-sized golf stick and molten glass. The LION Image Award competition of 2023 yielded a lot of beautiful images once again. But in the end, only one can be the winner.

How you think about yourself is important for the choices you make. Adolescents are faced with choosing a study programme that will determine their future, while their self-image is still under development. Tough choice? Research by psychologist Laura van der Aar has shown that taking a training course…

Promotores: R. Tijdeman, K.J. Batenburg

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.

GIFs, memes and videos: anyone who opens a social media platform can be in no doubt that today we live in a visual culture. But the role of images in social communications isn’t new, says Associate Professor Marika Keblusek. She has been awarded a Dutch Research Council (NWO) Open Competition (Large)…

In the traditional theory of linear elasticity, superposition dictates that the response of a material does not depend on the sequence of the applied mechanical actuations.

Castles, monasteries and bridges, but also city profiles, history prints and water management works. Leiden University Libraries (UBL) manages one of the most important collections of topographical images in the Netherlands. The collection, bequested to UBL by Johannes Tiberius Bodel Nijenhuis (1797-1872)…

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.