Are we on the right track towards a circular economy in 2050, with fully renewable energy technology and circular construction? The CML of Leiden University, together with the Netherlands Environmental Assessment Agency (PBL), TNO, Utrecht University and RIVM, is investigating what is needed to achieve…

A special type of mirror to reflect X-rays has more possible applications than space research. Targeted radiation therapy for cancer, for example. Next to his full-time job, physicist David Girou mapped out the possibilities. He will receive his PhD on 14 June.

Bribing a politician to gain influence or making sure friends end up in powerful positions: Brazilian energy companies use these power strategies daily.

After two years of COVID-19 induced hiatus, the European Union Studies track of MA International Relations organized another successful study trip to Brussels. Over the course of three days the students had a chance to learn more about the EU institutions, meet lobbyists and interest group representatives…

A true shower of awards for students from the Faculty of Science during the annual KHMW Young Talent Awards ceremony. On Monday, 25 November, no less than nine first-year students received a prize for the best academic results in their first year. In addition, there were graduation prizes for master’s…

Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, researchers at Leiden Observatory in the Netherlands have for the first time detected dimethyl ether in a planet-forming disc. With nine atoms, this is the largest molecule identified in such a disc to date. It is also a precursor…

She narrowly defied bureaucracy and spent days angling for cod. In the North Sea, marine biologist Inge van der Knaap discovered that noise significantly disturbs fish behaviour. ‘There is now a lot of attention for underwater noise.’

While all European nations have condemned the Russian invasion of Ukraine, there is one country Russia can still count on: Belarus. Russia even used its territory as a stepping stone for the invasion. We spoke with Matthew Frear, Assistant Professor and expert on contemporary Belarus, to shed light…

Ships are still emitting too much nitrogen oxide. Till now it has been impossible to measure this at sea, but that is set to change. Solomiia Kurchaba combined satellite data and developed algorithms to identify which ships are emitting too much. Kurchaba received her PhD on 11 June.

On Tuesday 20 September, David Kilcullen, one of the world’s leading experts on modern warfare, visited Campus The Hague of Leiden University to discuss future developments in special operations and the escalating competition between great powers.

David Versluis successfully simulated an infant gut virtually. This is crucial for research on improvements in formula milk. Currently, such research primarily relies on diaper contents, which is not optimal. Versluis defended his doctoral thesis on April 23.

What if I completely changed everything? A subject without lectures or exams, where the right answer is not important and where students work with their hands. With this idea, Michiel Brentjens reformed the course Radioastronomy. His students are so enthusiastic about this approach that they nominated…

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

Interest organisations are increasingly taking legal action and that’s a good thing for democracy, says PhD candidate Rowie Stolk. ‘It means that the most vulnerable social groups – including children and refugees, who tend to have a weaker political position – are protected.’

Sky-high energy prices and a climate that keeps getting warmer: it’s clear that we have to turn down the heat. Sustainability Day on 10 October will mark the start of our five-month Energy Campaign and we’ll be making the switch. Sustainability Coordinators Aranka Virágh (Real Estate) and Marlies Nijemeisland…

Light, open and green: a description that fits the new, renovated location of the Faculty of Humanities. The official opening of the Herta Mohr Building took place on 8 October, and it has many remarkable features: for example, recycled ‘mushroom columns’, a pedestrian bridge to the University Library…

Few people would associate the name Anton de Kom with Leiden. Yet the Surinamese freedom fighter is the subject of an exhibition at Museum De Lakenhal.

The European Space Agency (ESA) has published an interim data release from Gaia, the space telescope mapping out the Milky Way in 3D. The first scientific papers published today reveal half a million stars in the Omega Centauri globular cluster, nearly 400 candidate gravitational lensers and the positions…

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

How are supermassive black holes born? That is the question astronomer Elena Maria Rossi is trying to answer. But how do you investigate something you cannot see?

An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be floating alone in the early universe (less than a billion years after the Big Bang). Until now, astronomers, based on models, assumed that quasars are…

The ‘Schijf van Vijf’ is the Dutch official dietary guideline, similar to a food pyramid, that shows what a healthy daily diet looks like. The updated version places more emphasis on plant-based eating. But how big is the impact of that shift really? We asked environmental scientist Joran Lammers.

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

Two Leiden students stand a chance of winning the ECHO Award for Higher Education. Deniz Rana Kuseyri (Rana for short) and Ruşen Koç are two of the six finalists for this annual national prize that is awarded to students who promote diversity and inclusion in their own discipline.

Lecture, Pint of Science

Debate

Lecture, Pint of Science

Once a year, former employee and avid runner Dennis Hoencamp returns to his old workplace. That’s when he competes in the Leiden Science Run. As an event coordinator, he once devised the relay race as an anniversary activity. It grew into an annual event for the entire University and the Bio Science…

ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has made more than three trillion observations of about two billion stars and other cosmic objects. ‘Gaia is already the discovery machine of the decade,’ Leiden…

The slogan of the Faculty of Archaeology, ‘The Future of the Past starts at Leiden University’, might sound like empty marketing speak. But there is something to it. The past can teach us a lot about climate change and that could make us fear the worst for our future. Archaeologist Gerrit Dusseldorp…

Conference

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Lecture, Harold Linnartz Astrochemistry Prize lecture

Conference, D&I Event