Leiden physicist Alexey Boyarsky, together with his colleagues from Lausanne and Copenhagen, has been awarded an ERC Advanced Grant to research an extension of the standard model of particle physics. The leading house of the project is the Technical University of Lausanne. 580.000 euro goes directly…

By means of a presentation, a panel discussion, and activities in the fresh air, the event themed ‘Environmental Humanities’, organised by the Honours College Humanities, managed to unite both people and disciplines. ‘There is a gap between humanities and sciences, but they are more alike than you might…

On Thursday 19 September, the first ILS Lunch Seminar of this academic year took place. Clare Fenwick and Ilya Kokorin gave two very insightful presentations in this very well visited edition of the Lunch Seminars.

This book underscores the interplay between religion and politics (local and global) in the production, escalation, management, mitigation, and resolution of conflict.

Many of the journal's issues contain short contributions from practitioners of diplomacy. These practitioners' essays offer unique insights into the world of diplomacy and they serve as a source of inspiration for researchers.

Diplomatica: A Journal of Diplomacy and Society addresses the broad range of work being done across the social sciences and the humanities that takes diplomacy as its focus of investigation.

The aim of this project is to foster a historiography that does justice both to the realization that scientific knowledge is constructed by local, contingent, and contextual processes, and the claims of science to objective validity.

Learn all about the writing systems used in the famous wall poems of the city of Leiden.

Selected publications of the Cardiovascular and Metabolic Therapeutics group.

The people behind The Hague Journal of Diplomacy and its online platform.

English Language and Culture is a multi-faceted programme in which you’ll study the language in all its variaties, from Old English to the many different pronunciations currently in use. You’ll also be shown British, American and Canadian literature in their cultural-historical context.

Lecture, Oort lecture

Leiden astronomer Tim de Zeeuw has been appointed Knight in the Order of the Dutch Lion. He received the distinction on 14 May to mark his departure as Director General of the ESO European Astronomy organisation. The celebration took place during the 2018 Dutch Astronomers Conference in Groningen.

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

The fact that scientists are increasingly better able to access molecular cell and tissue data also brings with it a new challenge: how can scientists find the information they need for research among the vast amount of data available?

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.

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…

Astronomer Frans Snik searches for extraterrestrial life. He doesn’t so much look at stars as at the ‘exoplanets’ alongside them.

Does gravity work the same when you look at the largest scales in our universe? That’s what Leiden physicist Alessandra Silvestri will study with a 2 million euro ERC Consolidator grant. ‘We assume that it does, but we don’t actually know.’

An unexpected phenomenon in a merger of a cluster of galaxies. An international team of astronomers led by Francesco de Gasperin has witnessed a gas tail of a galaxy, that slowly extinguished, but then lightened up again

Alessandra Silvestri, a cosmologist at the Leiden Institute of Physics (LION), has been awarded an NWO Vidi grant for understanding the expanding universe. A growing number of theories explain why the expansion of the universe is accelerating, while more and more relevant observational data is pouring…

An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…

Fungi germinating in the lungs of patients. Doesn’t sound too nice, does it? Luckily, humans can deal with this normally, and we are able to clear the infection before anything comes to harm. However, in people with health issues, Aspergillosis can cause a lot of damage, especially if the fungus becomes…

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.

Various GTGC researchers convened panels and presented papers at the 14th Pan-European Conference on International Relations: The Power Politics of Nature, that took place online from 13-17 September 2021.

Of Sponge, Stone and the Intertwinement with the Here and Now. A Methodology of Artistic Research

The ‘University of the Netherlands’ is a series of lectures in which academics address topics based on their expertise. In the latest instalment, cultural historian Simon Willmetts discusses how intelligence services operate and what has changed since 9/11.

Why do we need fundamental science? For a lot of reasons, speakers showed at the Lustrum Symposium ‘Science Matters’. This symposium was held on 18 March 2016 to celebrate the 200th anniversary of the Faculty of Science.

A beautiful speech by vice-dean Bart de Smit, a mini-lecture on exoplanets and the presentation of three faculty awards. That's how we started the new year at the faculty. Together with colleagues and students, we raised our glasses to a new year full of great collaborations, science and education.

With new algorithms and supercomputers, an incredibly detailed radio map of the universe was created. Now astronomers can look at radio data of galaxies with much more precision. This was published in Nature Astronomy by Leiden PhD student Frits Sweijen and colleagues.

We are grief-stricken that our PhD student Maolin Zhang passed away during the early morning of January 17th 2019. He died during a terrible fire that took place at his house in Hillegom.

Using the MUSE instrument on ESO’s Very Large Telescope in Chile, an international team of scientists, including many Leiden astronomers, have conducted the deepest spectroscopic survey ever. They focused on the Hubble Ultra Deep Field, measuring distances and properties of 1600 very faint galaxies…

For only the second time ever, astronomers have linked a neutrino to an object outside our Milky Way. These observations were made using telescopes both on Earth and in space. The researchers, including Leiden astronomer Sjoert van Velzen, were able to trace the neutrino to a black hole that is devouring…

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.

After months of preparation, the moment of truth had arrived: would the skies above Leiden clear for the promised glitzy planet-and-star show? The people of Leiden turned out in their hundreds to go star-hunting on 25 September. They became more aware than ever of the effects of light pollution.

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

The Joan van der Waals colloquium is an ongoing bi-weekly lecture series.

Conference

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

A team of scientists, including Leiden Astronomer Alice Booth, has discovered silicon monosulfide molecules in the dust disk around a young star. Such molecules indicate planet formation. The team made the discovery using the ALMA telescopes. This method provides an alternative when direct observation…

An international team of astronomers has witnessed a cosmic weather event that has never been seen before.

Leiden Observatory is the astronomical institute of the Faculty of Science of Leiden University.

Students in our Astronomy programme are trained by leading experts in cutting-edge astronomical research. We incorporate in our educational programme observations and data from the world’s foremost ground- and space-based telescopes as well as theoretical, computational and astrochemical modelling,…

Lecture, Tuesday Talks: Science Insights

The world’s prosperity and well-being are seriously being threatened by the degradation of land and nature. Although there are opportunities to turn things around, fears of further deterioration in the coming decades must not be taken lightly. That is concluded at the Intergovernmental Science-Policy…

Three Humanities lecturers received the Senior Qualification in Education (SKO) this year. University lecturer Bruno Verbeek is one of them. What does he think makes for good education?

Nearly a year since the abrupt switchover to mostly online learning, the Digital Education seminar gave teaching staff the opportunity to review their experiences. What can stay in 2021 and what must go? Frequently voiced opinions: yes please to digital tools that make lectures more interactive; yes…

The Global Summit on Constitutionalism took place from 16 to 18 March. Wim Voermans, Gert Jan Geertjes and Rowie Stolk, from the Department of Constitutional and Administrative Law, travelled to Austin where the conference was organised by the School of Law of the University of Texas at Austin.

Over 100 participants joined the first grant matchmaking and working session on the call for the Dutch National Research Agenda, on 25 June in the PLNT building. They explored topics ranging from health care to smart cities.