High-angular-resolution observations of the circumstellar material have uncovered numerous and very diverse substructures in protoplanetary discs, raising the question of whether they are caused by forming planets or other mechanisms.

The ALMA Local Expertise Group (Allegro) is located in the Leiden Observatory (Sterrewacht). Professor Ewine van Dishoeck: ‘The Netherlands has played an important role in establishing ALMA. Thanks to this subsidy, we can now reap the scientific benefits.'

This thesis examines the link between simple molecules and the underlying structure and chemistry within protoplanetary disks - the birthplaces of planets.

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde

Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…

The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.

This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.

Two teams of astronomers, including one from Leiden University, have discovered oxygen in the most distant known galaxy, JADES-GS-z14-0. This groundbreaking discovery shows that galaxies could form much faster in the early universe than was previously thought.

Promotor: J.N. Kok, Co-promotor: M.S. Lew

Our research at CWTS is organized in three focal areas. These focal areas represent our core areas of interest, as defined in our knowledge agenda for the period 2023-2028.

We present our plans on five work areas: Students, Inclusive Education, Staff, Research, and Accessible and Inclusive Learning and Working Environment. For each work area, we explain which topics are relevant and what policy measures we (plan to) take.

The GTGC programme advances interdisciplinary research on how we govern – and could govern – major world-scale changes in contemporary society. These global transformations and governance challenges cover the themes listed here. The distinctions are not rigid, of course, and affiliated researchers often…

Large-scale computing infrastructure, such as supercomputers, cluster, and clouds, are already pervasive, most members of our society interact with them daily: social networks, government services, media streaming services--all systems heavily interfacing with the members of our society--are powered…

This research focuses on the distribution of chemical elements in protoplanetary disks, the birthplaces of planets. These disks form around young stars and contain gas and dust, from which planets grow. Ice plays a crucial role in planet formation, aiding the clumping of dust particles and influencing…

Within the Graduate School you can conduct your PhD research in a wide range of subjects across the Social and Behavioural Sciences, with five distinct research areas offered by its Institutes.

A study into the investment and impact of construction projects on Mycenaean communities in Late Bronze Age Greece

Promotores: F.H.J. Redig, W.T.F. den Hollander

PLATO is active in various fields of work.

The Tappino Area Archaeological Project aims to map and analyze ancient settlement patterns and dynamics in a small valley in Central-Southern Italy, in modern Molise (province of Campobasso). The first sites in the area date to the Bronze Age. In the Iron Age to Classical period, it was reportedly…

Paul Hudson, Associate Professor of Physical Geography at Leiden University College, examines human impacts on lowland rivers in his new book.

An in-depth history of Large Language Models—and what their ubiquity, disruption, and creativity mean from a wider sociopolitical perspective.

To truly understand complex regions such as the Middle East and Asia, you have to know their culture, history and local societies inside out. Driven by curiosity for other cultures, the Leiden University Institute for Area Studies (LIAS) provides an understanding and analysis of current and historical…

Everyone wherever they are in the world can follow free online academic courses offered by Leiden University.

The Centre is the proud home of several research programmes.

Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma

Discover which Bachelor's programmes at Leiden University suit your area of interest.

Discover which Bachelor's programmes at Leiden University suit your area of interest.

The Leiden Bio Science Park (LBSP) is the largest innovation district in the Netherlands in the field of Life Sciences & Health. The clustering of high-quality education, research, healthcare, and industry attracts students, scientists, and entrepreneurs from all over the world to the knowledge city…

Recent study led at the Leiden Observatory has observed Orion with unprecedented detail. New data from the Atacama Large Millimeter/submillimeter Array (ALMA) and other telescopes have been used to create this stunning image showing a web of filaments in the Orion Nebula. These features appear red-hot…

ALMA has observed stars like the Sun at a very early stage in their formation and found traces of methyl isocyanate - a chemical building block of life. This is the first ever detection of this prebiotic molecule towards solar-type protostars, the sort from which our Solar System evolved. The discovery…

The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…

The Leiden University Institute for Area Studies (LIAS) is devoted to the study of places in the human world from antiquity to the present time in a comparative and interdisciplinary perspective.

Promotor: S.M. Verduyn Lunel

In this thesis I highlight the applications of Oxford Nanopore Technologies (ONT) sequencing. This technique is a relatively new approach in the sequencing field, where nanopores are embedded in a membrane, DNA molecules are pulled through nanopores and an electrical current serving as the sequencing…

In the past decade many population studies have been performed with the Atacama Large Millimeter/submillimeter Array (ALMA) to understand the bulk properties of protoplanetary disks around young stars. These population studies mostly consisted of low mass stars, with relatively few of the disks around…

Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disc galaxy seems as orderly as present-day galaxies, but we see it as it was when the Universe was only 700 million years old. This is surprising since, according to our current understanding of…