‘We intend to use the arrival of SRON in South Holland to give a serious impetus to research and activities related to space travel and astronomy in the broadest sense of the word.' These were the words of Rector Carel Stolker of Leiden University at the ceremony where the first pile of the new SRON…

Leiden researchers discovered that North Korean labourers are being forced to work on a large scale in Poland. Professor of Korea Studies Remco Breuker will present a report on the abuses in Poland at the ‘Slaves To The System’ conference on 6 July.

Are you looking for some listening material for the upcoming long weekend? Staff members and alumni of the Faculty of Humanities have been creating various podcasts over the last few months. A selection is shown here:

The centre of our Galaxy is so dark and dense that it is almost impossible to observe what is inside. By catching the rare hypervelocity stars that are ejected from it, Elena Maria Rossi aims to unveil the mysterious environment around the supermassive black hole inside. But she’ll also be solving another…

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.

From the effects of hormone fluctuations in women via the interior structure of giant planets to the prehistory of the languages: six Leiden researchers have been awarded a Consolidator Grant by the European Research Council.

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.

With the new Euclid satellite, scientists are going to map a large part of the sky. The satellite ofthe European Space Agency (ESA) will soon give them a better view of the galaxies and matter in the universe. Professor of Galactic Astronomy Koen Kuijken and a team of Dutch scientists are receiving…

A team of Dutch scientists has built a supercomputer the size of four pizza boxes. The Little Green Machine II has the computing power of 10,000 PCs and will be used by researchers in oceanography, computer science, artificial intelligence, financial modeling and astronomy. The computer is based at…

The Royal Netherlands Academy of Sciences (KNAW) has awarded an Academy Professorship to Ewine van Dishoeck, Professor of Molecular Astrophysics at Leiden University.

An international team of astronomers has published a map of the sky showing over 25,000 supermassive black holes. The map, to be published in the journal Astronomy & Astrophysics, is the most detailed celestial map in the field of so-called low radio frequencies. The astronomers, including Leiden astronomers,…

A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…

Leiden astronomer Anthony Brown had the honour to give the prestigious Spitzer Lectures at Princeton University. In five lectures spread over the beginning of May, he gave an insight into the Gaia Mission. ‘One of the intellectual highlights of the year.’

How do stars and galaxies form? What is dark matter? To answer these and other questions, we need increasingly large telescopes. And to build these, we need international partnerships. A series on the impact of collaboration.

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…

The SRON space research institute, Leiden University and the TU Delft are appointing six researchers to jointly carry out space research. The research will focus on exoplanets, the evolution of structure in the Universe and technology for developing new pioneering space instruments.

Astronomers have discovered seven Earth-like planets around a dwarf star in our galaxy. Three of these planets are located in the habitable zone of this star, and may contain liquid water. ‘The next step is to study the atmospheres for signs of life. In Leiden we are experts in that area,‘ says planetary…

They hurtle along at over a thousand kilometres per second: the fastest stars in the Milky Way. PhD candidate Fraser Evans conducted research into these elusive hypervelocity stars and discovered that they have a lot to teach us, about black holes and supernovae, for example.

Having a drink in a cafe and at the same time learning something about astronomy: this is Astronomy on Tap. The first edition in Leiden will take place on Monday 27 March.

On 26 January 2023, a conference was held at Leiden Law School on children’s rights and migration. The conference, organised by Stichting Migratierecht Nederland (SMN) and the Europa Institute of Leiden University, was attended by academics, lawyers, judges, policymakers, and other legal professionals…

The Social Resilience & Security interdisciplinary programme broadens its scope by embedding two research projects lead by Dr. Joanne Mouthaan. The projects adress suicide prevention skills and mental health of Ukraine refugees. Both projects will be integrated in the programme with the aim to improve…

To mark its 75th anniversary, the Netherlands War Graves Foundation is publishing a portrait of a war victim every week this year. On 24 January the drawing of Irawan Soejono, a Leiden student and Indonesian resistance member, was unveiled at the Groenesteeg cemetery in Leiden, the place where Soejono…

What makes people in the Netherlands join radical and far-right groups? PhD candidate Nikki Sterkenburg followed several activists. ‘Some feel it is their duty to defend the Dutch nation.’ PhD defence on 19 May.

A full overview of BPOC/SSNMR PhD theses.

Engagement between Asia and Europe is increasing. If these continents want to build a lasting relationship, they need to understand each other better in the economic, socio-cultural, historical and legal arena. Researchers from Leiden have already contributed to the body of knowledge on past and present…

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Africa is fascinating! In today’s globalised world, the continent plays an increasingly important role in international social and cultural developments. Would you like to explore the many sides of Africa and its impact on the rest of the world, while also learning one of its languages? Our African…

Xander Tielens, Professor of Physics and Chemistry of the Interstellar Space, has been awarded an ERC Advanced Grant to study polycyclic aromatic hydrocarbons (PAHs) in space. The combination of astronomical observations, computer models and lab research makes the research highly interdisciplinary.

Sixty-four high school students from Slovenia, Czech Republic and The Netherlands have visited Leiden University in the week of 7-11 November, as part of the Talent Education Project. They split in eight groups, of which some went to the science faculty to conduct research projects.

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…

Over 1600 astronomers and space scientists will gather online from 29 June until 3 July for the annual meeting of the European Astronomical Society (EAS). The virtual meeting will also host NAC 2020, from 1 July until 3 July: the 75th Conference of the Royal Netherlands Astronomy Society (NAC).

Seven prominent North Korean exiles will shed new light on the dictatorial state in a conference hosted by Leiden University on 17 and 18 September. All of the speakers once held high-ranking positions in the regime and now reveal its inner workings.

North Korean labourers are still being forced to work in the European Union. According to researchers, including Professor of Korean Studies Remco Breuker at Leiden University, Dutch companies are buying ships from a dockyard that uses North Korean workers.

Oud-studenten gingen op 30 augustus weer de collegezalen in om hun vaste plekje op de banken op te zoeken tijdens Leiden Revisited. Bezoekers konden genieten van inspirerende lezingen, maar ook van een gezellige borrel, buffet, en livemuziek.

PhD defence

PhD defence

On Thursday November 15th, Leiden University organizes its Physics & Astronomy Ladies' Day for female high school students. To mark this festive day, we put the spotlight on five female researchers, who talk about their experiences working in science.

Rector Magnificus Carel Stolker will retire on 8 February. If there’s one theme running through his career, it’s the links between the University and society. In this series of pre-retirement discussions, Stolker will talk one last time to people from within and without the University. In this edition…

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

‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…

To what extent does exoplanet Proxima b resemble our Earth? And is there some form of life present? Astronomers hope to find answers to these questions with the new European Extremely Large Telescope (ELT). An NWO research grant of €18 million will allow a Dutch consortium to continue building instruments…

For the first time, astronomers have managed to take a photo of a supermassive black hole and its shadow. They used the Event Horizon Telescope (EHT), a worldwide network of eight radio telescopes that together form a virtual telescope the size of the earth. The news was presented in six press conferences…

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

Eleven Leiden researchers have been awarded a Veni grant by the Dutch Research Council (NWO). The grant will enable them to develop their research ideas for a period of three years.

Leiden astronomer Xander Tielens has been awarded a Spinoza prize, the highest scientific prize in the Netherlands. Tielens is Professor in the Physics and Chemistry of Interstellar Space. He studies large and complex, often organic, molecules found in interstellar space. The Spinoza prize carries a…

The European Research Council has awarded a Starting Grant to five early career scientists from Leiden University. They received funding up to 1.5 million euros to further expand on their research subject.

Meet the newest Full Professor at the Leiden Observatory: Joe Hennawi. All the way from Santa Barbara, California, Hennawi will strengthen the astronomy institute. In Leiden, he will use his recent ERC Advanced Grant to study how supermassive black holes come into existence.

SRON Netherlands Institute for Space Research is moving. In 2021, the Utrecht branch will settle in South Holland. Assistant professor at TU Delft, Akira Endo leads a project that builds a state-of-the-art instrument for astronomical research. ‘SRON is the key to go from proof-of-concept to a science-grade…

Four promising young researchers from Leiden University have received a Rubicon grant from the Dutch Research Council (NWO). This grant will enable them to gain valuable research experience at top universities abroad.

Leiden University Medical Center (LUMC) will host some of Leiden University's IT equipment in its data centre. The two organisations signed an agreement to this effect on 10 April.