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…

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…

Dr. Simon Willmetts from the University of Leiden’s Institute for Security and Global Affairs (ISGA) has been selected for a stay at the Netherlands Institute for Advanced Study in the Humanities and Social Sciences (NIAS-KNAW) in Amsterdam.

Researchers Rowie Stolk and Caelesta Braun’s ‘Litigation in the name of public interest’ Kiem project included an interdisciplinary workshop on the same topic. For starting PhD candidates in particular, this was the chance to build valuable connections.

The doctor suggests opting for a treatment that is better for the environment. How do patients react to this? Doctors and psychologists together discovered that this has little impact on patient confidence in the doctor.

Space, stars, and galaxies. The wonders of the universe can be captivating and studying them is helping us unravel their mysteries. This edition of 'Learning World' looks at some projects that are offering classroom experiences that are truly out of this world.

How did our universe come into being? Are there any other planets that support life? Read all about it in our new research dossier ‘Exploring the universe’.

Pianist and radio producer Guy Livingston has created a podcast series, inspired by the performances of ZINDERING, a five-day festival in the context of Zinderende Stilte (sizzling silence).

On Friday evening 8 June, Thijs Bosker, Associate Professor at Leiden University College (LUC), was on television in NOS Jeugdjournaal about plastic pollution and microplastics

ACPA researcher and pianist Guy Livingston is curating a mini-festival of music and silence in The Hague in Spring of 2021.

Dutch radio corporation ‘BNR’ contacted Willemijn Aerdts, a lecturer at the Institute of Security and Global Affairs, for her opinion on the arrest. ‘It seldom happens that someone gets caught. What is interesting is that he was both caught and is being prosecuted in the USA.’

Osteoarchaeologist Rachel Schats investigates traces of malaria in old human skeletons. Even though the disease cannot be spotted directly in bone material, you may find traces of it, for example through porosity caused by anemia, linked to malaria. Rachel was a guest in the programme Science071 on…

British and Australian researchers have analysed the DNA in the dental tartar of several Spanish Neanderthals. One of the conclusions was that the Neanderthals had a mostly vegetarian diet.

The Scotsman Alan Jope is to succeed Paul Polman as CEO of Unilever, a clear sign in the eyes of Arco Timmermans, Professor Public Affairs by special appointment at Leiden University: ‘It seems to me that Unilever is moving with the market’s demands.’

In a new video on the Faculty of Humanities' YouTube-channel, we follow MA student Russian and Eurasian Studies Sophie. She is doing an internship at VPRO's OVT, a weekly Dutch radio show that provides historical backgrounds for news, columns and documentaries.

The 2018 Physics Nobel Prize is awarded to Arthur Ashkin, Donna Strickland and Gérard Mourou for their research on optical tweezers based on lasers. Leiden physicists comment in the following media.

Several Spanish news outlets have published interviews with Associate Professor Eric Storm about his new book Nationalism.

Following to the Romanian translation of his book Nationalism, associate professor Eric Storm was interviewed by several Romanian news outlets. Several other media published reviews of his book.

World wide press attention for the article and specifically the image of the 30 micrometer long micro boat 3DBenchy by Rachel Doherty, Daniela Kraft and other Leiden physicists.

In 2013, Sylvestre Bonnet received an ERC Starting Grant to kill cancer with molecules that can be activated by light. Two postdocs and three PhD students later, the end approaches of his so far successful project.

‘Violence as a Population Health Problem’ is one of 33 interdisciplinary projects that have been launched thanks to a Kiem grant. The project team will analyse a large patient database to identify links between violence and other health problems. ‘Violence can also be an expression of other factors,’…

As a researcher, it can be fun and useful to talk to the media about your work. But on what terms should you agree to do an interview or appear on a talk show? And how do you tell an engaging story? The Media Guide for Researchers is here to help. Three colleagues share their top tips.

Claire Vergerio, political scientist at Leiden University, has been awarded a VENI grant by Dutch research organisation NWO. This will allow her to conduct an in-depth analysis of the legal rights and duties of non-state actors involved in warfare. The aim is to tackle some persistent blindspots in…

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.

A glowing first-time mother-to-be with an impressive CV for someone of her age, newsreader Amber Brantsen would seem to lead a charmed life. ‘But I began to resent that image,’ says the Leiden Public Administration alumna. This led her to write the impressive and personal Uit Beeld (Out of the Picture).…

Thijs Porck, expert in medieval English, has won the LUCAS Public Prize because he has made his research and education visible to a wider audience. Thijs has reached the national media, secondary schools and a lot of views with his blogs and videos. The prize consists of a certificate, trophy, 1000…

Observations made with the ALMA telescope in Chile and ESA’s Rosetta mission, have detected the faint molecular fingerprint of methyl chloride in gas, a chemical commonly produced by industrial biological processes on Earth, around both an infant star and a comet. Methyl chloride, also known as Freon-40,…

Political games have existed throughout history, but what is the role of 'play' in the way the American political world has developed? University lecturer Sara Polak has received an ERC Starting Grant to investigate this.

A series of upcoming activities by PhDArts co-director Janneke Wesseling, docARTES researchers Bobby Mitchell, Giuliano Bracci, and Dick de Graaf, and PhDArts researchers Brigitte Kovacs, Danne Ojeda, Jack Segbars, Mikala Hyldig Dal, Ato Malinda, and Thalia Hoffman

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.

How does speculative literature respond to or incorporate the aural, sonic, or noisy? How are sonic technologies co-opted into practices of worldbuilding? How does the speculative mode of artistic and literary enquiry generate new possibilities of listening?

The Neumark-Nord 2 site in central Germany, dates back to 125,000 years ago. During an interglacial period with temperatures similar to those today, Neanderthals where doing something we previously thought happened only tens of thousands of years later.

Fourteen Leiden University scientists appear on the 2018 Highly Cited Researchers list, which was announced on 28 November by Clarivate Analytics.

Eleven researchers of the Faculty of Science are on the 2021 Highly Cited Researchers list of Clarivate Analytics. Only 0.1 per cent of researchers are included in this list, literally making them one in a thousand.

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.

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.

Vibrating carbon monoxide molecules adsorbed at the surface of a salt crystal stop moving after a few milliseconds. Scientists now discovered this is dominantly due to the emission of electromagnetic waves. The role of the chemical bond at the surface thereby appears to be less important than previously…

When professor Frank Israel graduated at Leiden Observatory some forty years ago, little did he know that one of his theories would be making headlines in 2018 - in the form of a 3D animation on the Internet, no less.

North Korean detention camps are no different from Nazi prison camps. But as long as the country remains economically isolated, international criticism will be ineffective, writes North Korea expert Remco Breuker in the opinion section of Dutch newspaper NRC on 21 February. Breuker advocates using the…

On Wednesday 26 June, Marieke Liem, Associate Professor Physical Violence and Public Order at Leiden University’s Institute of Security and Global Affairs (ISGA), appeared on both Dutch radio programme ‘Nieuws & CO’ and the eight o’clock television news (NOS) to discuss life imprisonment.

New Danish legislation could mean that citizens will have copyright to their bodies, faces and voices. The Dutch government is also proposing similar legislation. Dirk Visser commented on the issue in NRC newspaper and on BNR radio.

Each year, the Jaap Doek Children’s Rights Thesis Award is presented to the student who has written the best master’s thesis in the Netherlands or Belgium in the field of children’s rights. The award was established by Defence for Children and Leiden University's Department of Child Law.

Prof. dr. Marieke Liem, Professor Social Resilience and Safety at ISGA, discussed the facts and fiction surrounding serial killers on Dutch NPO Radio 1.

Op 17 februari 1983 trad de geheel herziene Nederlandse Grondwet in werking. Het radioprogramma Villa VdB – gepresenteerd door Jurgen van den Berg – besteedde aandacht aan het 42-jarige jubileum van die gebeurtenis. Van den Berg ging daarover in gesprek met hoogleraar staatsrecht. Wim Voermans.

The daisy has been crowned the Netherlands’ national flower. Rogier van Vugt, Head of Horticulture at the Hortus botanicus, explains why the daisy merits its elevation to national symbol.

It’s starting to become a real Dies Natalis tradition: on 8 February professors from Leiden University teach a class at primary schools in the region. This introduces children to academia and teaches them more about conducting research. ‘Had you expected me to be a woman?’

Interview for National Public Radio sparks media frenzy.

Marie Robin, Assistant Professor at the Institute of Security and Global Affairs, discusses in Le 1 Hebdo, Radio France and RFI how revenge, often condemned as destructive, can also reveal what societies consider just and shape pathways toward peace.

The 4G network will soon be replaced by 5G. 5G will enable users to set up faster and more reliable data links as well as better privacy protections. For intelligence agencies, however, the upgrade in data protections will create huge problems.