402 search results for “dark matter” in the Public website
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Working with datasets that are larger than the entire university
Radio telescope LOFAR maps the sky. It produces incredibly detailed images of the universe - and vast amounts of data. Huub Röttgering, director of the Leiden Observatory, talks about the challenges of working with those enormous datasets.
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Lipid bilayers decorated with photosensitive ruthenium complexes
Promotor: E. Bouwman, Co-promotor: S. Bonnet
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Fruits of our labour: Work and organisation in the global food system
This is the first special issue of any organisation studies journal on food labour. Why is this a big deal? In this Introduction, we argue that the field should pay much more attention to the agri-food system and the work that goes into producing, distributing and consuming foodstuff. Food is such an…
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Science & Cinema
In films kunnen de meest wonderlijke acties plaatsvinden. Maar zijn die acties in de 'echte' wereld ook mogelijk? En in hoeverre houden filmmakers ons voor de gek? Tijdens het Leiden International Film Festival komen film en wetenschap samen.
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Vertebrate automated screening technology (VAST)
How can you use robots and automatic recognition of microscopic images to test the effect of drugs exceptionally quickly?
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Landscapes of Survival
The Archaeology and Epigraphy of Jordan’s North-Eastern Desert and Beyond
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Islamophobia and Radicalisation
A measured yet theoretically innovative exploration of how Islamophobia and radicalisation intersect and reinforce each other.
- Our story
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Focal-plane wavefront sensors for direct exoplanet imaging: Theory, simulations and on-sky demonstrations
One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…
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The formation of complex organic molecules in dense clouds-Sweet results from laboratory
Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.
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Painting with techniques inspired by old masters
Arts and leisure, Arts and leisure
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Workshop Christmas painting
Arts and leisure, Arts and leisure
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Painting with Acrylics
Arts and leisure, Arts and leisure
- Meet our staff
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Athens
Athens is universally known as a symbol of democracy, philosophy, and ancient Greek aesthetics. Some of the most famous classical monuments, including the Parthenon and the temple of Hephaestus, can be found here.
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Veni awards for seventeen young Leiden researches
The Netherlands Organisation for Scientific Research (NWO) has awarded Veni funding to seventeen researchers who recently obtained their PhD. This award offers promising young scientists the opportunity to develop their own ideas over a period of three years.
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Three Leiden scientists receive NWO ENW-KLEIN grant for innovative research
The origins of Surinamese rice, a digital twin of the Earth and a large big-data project in the Chilean sky: three Leiden scientists receive an ENW-KLEIN grant for innovative, fundamental research.
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The symmetry of crystals and the topology of electrons
Promotor: J. Zaanen, Co-Promotor: V. Juricic
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Measuring what Matters
PhD defence
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Narrative and Belief
How do religious narratives persuade their readers to believe their message? And how can it be that some readers even come to treat fantasy and science fiction as authoritative religious texts? These are the core questions treated in Markus Davidsen’s new book Narrative and Belief: The Religious Affordance…
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Old/New Histories that Continue to Matter: M.A. History Students use Leiden Austria Centre programming as they study the Holocaust in Central
Nearly eight decades after the liberation of Auschwitz, we continue to learn more about how the Holocaust “happened” in central and eastern Europe. In Prof. dr. Sarah Cramsey’s History MA Research Seminar “New Approaches to the Holocaust in Central and Eastern Europe,” a dozen Leiden students read what…
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Reactivity on interstellar ice analogues
The
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Self-Portrait with Gorget
In this penetrating self-portrait dating from around 1629, Rembrandt presents himself as an aristocratic young man. He enrolled in Leiden University as a student of the arts in 1620, but whether he actually attended lectures is unknown. In his paintings and prints, he incorporated many topics that are…
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Johan van Meurs Een studie over een pionierend orgeladviseur
In specialist organ literature a negative verdict is given on organs and organ specialists from the 1930’s. Did the same verdict apply to Johan van Meurs’ (1903-1986) work? Which role does Van Meurs’ collection of organ specifications play in the historical research on the organ?
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Alba, General and Servant to the Crown
This book on Alba is edited by Maurits Ebben, Margriet Lacy-Bruijn and Rolof van Hövell tot Westerflier. Each of its fifteen chapters are dedicated to developing a new understanding of a sometimes misunderstood figure in European history.
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DEEPSEA SOUND: pioneer explorations into biological relevance and anthropogenic disturbance
Are there acoustic cues for settlement stage larvae in deep-sea soundscapes around hydrothermal vents?
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Model painting with diverse techniques
Arts and leisure, Arts and leisure
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Urban sketching
Arts and leisure, Arts and leisure
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H.L. Wesseling Fund
The Europa Institute has been the beneficiary of a generous grant from the H.L. Wesseling Fund. The Fund was established in memory of Professor Henk Wesseling (6 August 1937 – 18 August 2018), Dutch historian, Professor of contemporary history at Leiden University, and former rector of the Netherlands…
- ESA Space Talks
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Hall of Fame
Many of our staff and students have won an award, received a grant, obtained an academic fellowship for their quality or have been socially engaged due to their specific expertise. See below for an overview per year.
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Light-activatable metallodrugs and metal-functionalized liposomes
Metal-containing molecules combine geometrical features and a reactivity that are inherently different from that of organic molecules. My research focuses on light-activatable metal-based anticancer drugs and metal-functionalized liposomes. Light is a very selective way to activate photosensitive drugs…
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Night Spaces: Migration, Culture and Integration in Europe (NITE)
How are night spaces imagined, produced, experienced and narrated by migrant communities in Europe? This research project considers this question in eight European cities: Aarhus, Amsterdam, Berlin, Cork, Galway, Lisbon, London, Rotterdam. Authorities have historically wrestled with the issue of night-time…
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Online Master’s Experience: Practical Matters: Admission & Application
Study information
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‘We’re undermining science and that’s a great shame’
Kerstin Perez has reached the position of Assistant Professor of Particle Physics at the renowned Massachusetts Institute of Technology (MIT). For people from minority groups this is by no means a common experience. Perez will explain how improvements can be made at the annual Diversity and Inclusion…
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Ronald Stark and Amina Helmi join the management of NOVA
The directorate of the Netherlands Research School for Astronomy (NOVA) has two new members. Ronald Stark (currently at NWO) will be the new Executive Director of NOVA from 1 September. Amina Helmi (Professor of Dynamics, structure and formation of the Milky Way at the University of Groningen) will…
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Leiden Classics: The Leiden Observatory, the world’s oldest university observatory
Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.
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CPP Colloquium 'Varieties of competition (and why they matter)'
Lecture
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Scleral pigmentation leads to conspicuous, not cryptic, eye morphology in chimpanzees
Researchers of the National University of Singapore and Leiden University have discovered that chimpanzees and bonobos share the contrasting colour pattern seen in human eyes, which makes it easy for them to detect the direction of someone’s gaze from a distance.
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Special Issue: Missions, Powers and Arabization in Social Sciences and Missions
This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.
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Public Outreach
The Astronomy & Society Group provides the focus for Leiden Observatory’s aim to engage the public with the wonders of the universe and share the scientific, technological, cultural and educational aspects of astronomy with society.
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Time and persistence
Contemporary Maya Calendars
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Development matters - Longitudinal pathways in brain and behavior
Conference
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‘Building blocks for life' may originate in space
Amino acids are the building blocks for life on earth. They may originate in space and reach the Earth via comets and meteorites. Daniël Paardekooper examined part of this hypothesis. PhD defence on 5 July.
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Bouncing gel balls popular in the media
The explanation from physicist Scott Waitukaitis for the screaming and bouncing gel balls in a hot pan has been covered in several media, including the Washington Post.
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Blog Post | Colouring Diplomacy through Feminist and Pro-Gender Bodies and Foreign Policies
In the past months the COVID-19 pandemic has made the world become more reliant on digital communication and social media. As virtual spectators of diplomacy during these times, it is not difficult to notice that diplomacy is more colourful nowadays.
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Building with flexible blocks
On an apparently normal cube a pattern of hollows and bulges appears when the cube is compressed. A method has been developed to design such three-dimensional structures and to construct these using simple building blocks. Publication in Nature.
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Tiny clumps recycle themselves into complex structures
Manufacturers produce high-end technology mostly top-down with large machinery, but small particles are able to build structures by themselves from the bottom up. A major challenge is that these particles easily clump together. Leiden physicist Daniela Kraft has developed a method to use this phenomenon…
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How to attract stargazing tourists? Leiden Observatory launches a new manual for astrotourism
How to create an unforgettable astronomy experience for tourists? And how to create fun activities that also have scientific and educational value? The Astronomy & Society Group at Leiden Observatory has translated a manual that answers those questions. The Observatory’s public engagement team hopes…
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‘Flocking birds, marching penguins and the marvelous physics of active matter' 24 August
Lecture