414 search results for “dark matter” in the Public website
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Pitfalls of discretionary conduct
Judicial officers have some leeway in how they act. In most cases that's fine, but it can also lead to abuses, such as ethnic profiling. It is easy to forget that these are not isolated decisions, but are also part of a framework of formal policies. Professor Maartje van der Woude calls for more comprehensive…
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‘All of Leiden will join in with the Seeing Stars experiment’
What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…
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Blogging about the Middle Ages: love magic, face masks and video games
Three years ago, on 13 October 2017, the Leiden Medievalists Blog was established. In their blogs, Leiden researchers from all disciplines talk about the Middle Ages in a fun and interesting way. Editors Jip Barreveld, Marlisa den Hartog and Thijs Porck talk about the blog and why the Middle Ages are…
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Lights out, stars on: Daan Roosegaarde on Seeing Stars Leiden
‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…
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Astronomer Danna Qasim wins two prizes for dissertation on methane ice
Former Leiden Observatory PhD candidate Danna Qasim has won no less than two prestigious prizes with her thesis, titled 'Dark ice chemistry in interstellar clouds'. Qasim received the IAU PhD Prize from the IAU. The Astrochemistry Subdivision of the American Chemical Society (ACS) honoured her work…
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Thierry Rohmer received Ernst Award for elucidating the light-switch of plants
PhD student Thierry Rohmer received the Ernst Award 2009 of the Gesellschaft Deutscher Chemiker (GDCh) for his publication in the Proceedings of the National Academy of Science of the USA on the structure-function relation of the photoreceptor phytochrome. The prize was presented at the Annual Discussion…
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New research centre for studying planet and star formation
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.'
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Ewine van Dishoeck interviews minister Dijkgraaf - Astronomy celebrates 60 years of ESO
With a special symposium at Museum Boerhaave, ESO celebrated its 60th anniversary on Monday, 26 September. More than 100 scientists, politicians and people from industry were present to look back on collaborations, milestones and discoveries. Leiden astrochemist Ewine van Dishoeck was one of the pre…
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Is lack of sleep bad for study performance?
The Netherlands Association for Sleep-Wake Research is studying this issue. Lead researcher Kristiaan van der Heijden, Leiden psychologist and sleep specialist, invites students to take part in the study.
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Solar telescope officially unveiled in Old Observatory
After nearly 70 years, the Leiden Observatory has a new telescope. A crowdfunding action in March brought in the 20,000 euros required to build a solar telescope. On 19 September Rector Magnificus Carel Stolker officiated at the opening.
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Mazène Hochane and Xueying Fan win LION Image Award 2018
Mazène Hochane and Xueying Fan have won the fourth annual LION Image Award. They created a detailed colour image of a human kidney in development.
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Online exhibition
TEXTS FROM ANCIENT EGYPT. Highlights from the Collection of the Leiden Papyrological Institute. Online exhibition on the occasion of the 80th anniversary of the foundation ‘Het Leids Papyrologisch Instituut’ in 2015.
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Doctors and citizens under fire in conflict zones
It is time for the international community to put a stop to war crimes – especially against medical personnel, argued international chair of Doctors Without Borders Joanne Liu in her Cleveringa lecture.
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Material Culture, Consumption and Social Change
New Approaches to Understanding the Eastern Mediterranean during Byzantine and Ottoman Times
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Portrait series Keti Koti
In personal stories, university staff and students with different backgrounds reflect on our colonial and slavery past. How does this history affect the present and the future?
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Leiden astronomers launch biggest space-ice database ever: ‘A kind of phone book, but for ice’
It is the largest database for space ice yet: The Leiden Ice Database for Astrochemistry: LIDA. Created by astrophysicists at the Leiden Observatory, LIDA includes not only hundreds of measurement data, but also software to examine astronomical observations and prepare new measurements with the James…
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A thousand participants in Dies for alumni
The Dies Natalis for alumni on 11 February was an online event. Almost 1,000 alumni tuned in to Bastiaan Rijpkema’s interview with Annetje Ottow, who had then been President of Leiden University’s Executive Board for all of three days. Alumni are part of her portfolio on the Executive Board.
- Night of Discoveries
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After us the deluge: exhibition portrays the end of humanity
From a catastrophic fire to a flood that engulfs the earth. Mineke Schipper, Professor Emeritus of Literary Studies, has collected myths from the four corners of the earth about the end of humanity. These have inspired 30 striking paintings by Japanese artist Yuriko Yamaguchi. The Dutch premiere of…
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Neurodiversity Platform: creating an inclusive workplace
The new Neurodiversity Platform supports staff who need better working conditions because they have ADHD or autism, for instance. Stefan de Jong, who is organising the Platform’s first online meeting on 15 November, tells us about the initiative. Register now if you’re interested.
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Visit the Leiden preliminary heat of FameLab
Which two Leiden scientists will present their research in the most compelling way in three minutes? It could be those with the most supporters. The Leiden preliminary heat of FameLab is taking place on 14 February. Sign up now to be in the audience!
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Celestial worlds and comet hysteria in Van Dishoeck exhibition
A moon rock from the Apollo 17 mission, antique globes and the cosmos according to Wassily Kandinsky. Ewine van Dishoeck, Professor of Molecular Astrophysics, has put together an impressive exhibition at Rijksmuseum Boerhaave.
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We finally understand how oxygen reacts on platinum
Platinum is a widely used catalyst, but its precise mechanism largely remains a mystery to scientists. Ludo Juurlink has now demonstrated for the first time how oxygen reacts on the platinum surface. Together with PhD students Kun Cao and Richard van Lent and international colleagues he publishes his…
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Four reasons to visit the Night of Art & Sciences
On 16 September, the Rapenburg canal will be the setting for the Night of Art & Sciences. There will be plenty of things to do, including for international students and staff. We have selected four great acts in advance.
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Cosmic recipe discovered for making glycerol
A team of laboratory astrophysicists from Leiden University managed to make glycerol under conditions comparable to those in dark interstellar clouds. They allowed carbon monoxide ice to react with hydrogen atoms at minus 250 degrees Celsius. The researchers publish their findings in the Astrophysical…
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Astronomers destroy former record for most distant galaxy
An international team of astronomers that includes researchers from Leiden has discovered the most distant galaxy yet. The galaxy, called EGS8p7, is 13.23 billion light years away from Earth and already existed when the universe was only 550 million years old.
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Summer exhibition in the Old Library: artworks by colleagues
Silver jewellery, sculptures made of cork and intriguing photos of psychiatrists' treatment rooms. Staff at Leiden University exhibit their artworks in the Old Library. The summer exhibition can be viewed until 12 August.
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Facts and Fiction about Serial Killers
Prof. dr. Marieke Liem, Professor Social Resilience and Safety at ISGA, discussed the facts and fiction surrounding serial killers on Dutch NPO Radio 1.
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Single Molecule Detected for Use in Quantum Network
Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…
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The early Middle Ages a ‘golden age for the elderly’? Not quite!
According to a number of British historians, the elderly had a particularly high status in the early Middle Ages. A new book by Leiden cultural historian Thijs Porck sheds a different light on the matter: elderly people had to earn that respect first, and old age was often described in negative terms…
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Leiden project wins international astronomy engagement award
The online summer programme Space in Your Living Room by Leiden Observatory has won the first prize ‘Most Innovative Event’ of the Astronomy@Home Awards from the International Astronomical Union. In July and August 2020, participants could for example talk to real astronauts and imagine life forms in…
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Medieval women better dressed than men
Women in the Middle Ages often wore better quality clothes than men. This is one of the conclusions drawn by Leiden archaeologist Chrystel Brandenburgh, who studied textile remnants from the period from 400 to 1000 A.D. PhD defence 10 May.
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ERC Starting Grants for five young researchers from Leiden University
The ERC Council has awarded Starting Grants to five promising Leiden researchers. With an impressive three laureates, the Faculty of Social and Behavioural Sciences has done particularly well. The fourth grant goes to the LUMC and the fifth to the Faculty of Governance and Global Affairs.
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My favourite spot: one for the coffee lovers
'This one is really for the coffee lovers out there, but tea drinkers and co. need not tune out because this spot has got more to offer than just coffee.' Rachel Quennell, student of International Studies in The Hague, is a mine of information for lovers of good coffee.
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Royal decoration for Jo Hermans and Jan Schmidt
Two of our colleagues received a royal decoration. Professor Jo Hermans became “Ridder in de Orde van Oranje Nassau”, and Professor Jan Schmidt became “Officier in de Orde van Oranje Nassau”. They receive the decoration as an acknowledgement for their extraordinary and selfless contribution to others…
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'One of the most connecting experiences I have had online'
Poetry, video editing, musical art: the first installment of the 48 Hour Project, in which students created a piece of art in only two days, has resulted in a wide variety of creativity. For participants, it was a glimmer of light in a rather dark year of lockdowns: “I felt like I was physically there with…
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Science & Cinema: Leiden researchers at the Leiden International Film Festival
A film and quiz at the Old Observatory, a film whose ending you decide or a political satire in The Hague. These are some of the options at Science & Cinema, the 444 edition, a special programme during LIFF, the Leiden International Film Festival.
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Seven Leiden researchers win €1.5m Vici grant
Seven Leiden researchers have each been awarded a Vici grant by the Netherlands Organisation for Scientific Research (NWO). This will enable them to form a research group and develop their own innovative line of research.
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First comprehensive study on gun violence in Europe identifies alarming trends
The steady decline in lethal gun violence in the EU came to halt in 2012 and some countries, such as Sweden, have even noticed an increase since then. An arms race among drug criminals and an increase in the availability of illegal firearms could lead to more criminal and gun violence. This is one of…
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Playing with light and shadow
Depictions of Rembrandt, Michelangelo and many other artists are given a new dimension in an exhibition in the hall of the Oude UB at Leiden University. The exhibition - 'Multiple Images' - opens officially on 15 February. Artist Rudi Struik has given the slides of Leiden art historian Henri van de…
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First photo of black hole at the heart of our Galaxy
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.
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Report: Tracking down green spaces in The Hague in places you don't always want to be
Although there is considerable evidence that nature in the city is beneficial to both people and animals, we still do not have an overall picture of those benefits. To rectify that, a Leiden PhD candidate and a student – armed with a cargo bike – are using The Hague as a life-size laboratory.
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Five Leiden professors elected to KNAW
The Royal Netherlands Academy of Arts and Sciences has elected five Leiden professors from different disciplines as new members. Two of the new members are women.
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RED: final presentations Theatre, Music and Dance
Arts and leisure, Arts and leisure
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Awards and Grants 2020
An overview of awards and prizes granted to our staff and students in 2020, as well as special appointments at Leiden University and other institutions.
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Voicing the colony
This project studies travel writing about the Dutch East Indies written between 1800 and the end of the Second World War. By analyzing both Dutch travel texts and Indigenous travel texts in Javanese and Malay, it presents a new, double-voiced perspective on (the historiography of) the Dutch colonial…
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Effective Protection of Fundamental Rights in a pluralist world
What opportunities and threats flow from the existence of institutional and normative diversity in the area of fundamental rights for the effective protection of those rights in a pluralist world?
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Book Reviews
The Hague Journal of Diplomacy regularly publishes reviews of recent books within the field of diplomacy and global affairs.
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Resolution of electron microscope greatly improved
The use of a new type of detector has generated a strong improvement in the resolution of electron microscopes. The 'low-energy electron microscope' (LEEM) can now be used for research on the thinnest possible materials. The tests with the detector represent the first result of the ESCHER project.
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Dick Stufkens Prijs 2015 awarded to chemist Tatu Kumpulainen
The Dick Stufkens Prijs for the best PhD thesis of the Holland Research School of Molecular Chemistry (HRSMC) has been awarded to Dr Tatu S. Kumpulainen for his thesis “Proton-Transfer Reactions in ‘Super’ Photoacids and Supramolecular Assemblies”. It describes his innovative research into methods for…