Galaxies are often found in clusters, which contain many “red and dead” members that stopped forming stars in the distant past. Now, an international team of astronomers, led by Andra Stroe of Leiden Observatory and David Sobral of Leiden and the University of Lisbon, has discovered that these comatose…

A group of single-celled organisms organises its DNA in a similar way to higher organisms such as plants, animals, and fungi. However, the way packaged DNA is read out differs between the two related groups, Bram Henneman discovered. PhD defence on 5 December.

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.

The James Webb Space Telescope continues to surprise us with stunning pictures, but of what exactly? Astronomer Nienke van der Marel shows with three images how massive stars lead short but explosive lives.

A permanent exhibition on the place of humans in the cosmos. This is something Franx wants to use his Spinoza Prize for. ‘So much progress has been made that we are still trying to define the questions. In finding the answers we are constantly coming up against surprises.’

Imagine we could convert the greenhouse gas CO2 into synthetic fuels using sustainable energy. This would enable us to reduce the amount of CO2 and at the same time store wind and solar energy in an innovative way. Chemist Akansha Goyal (Leiden University) is conducting fundamental research to make…

Until 15 May, Open Space will give room for artistic creation and experimentation in a partnership between artists and astronomers. The project is a collaboration among Nederlands Dans Theater (NDT), Korzo and the Leiden Observatory. Starting on 3 May, young dancers of NDT 2, three choreographers, three…

Different groups of hominins probably learned from one another much earlier than was previously thought, and that knowledge was also distributed much further. A study by archaeologists at Leiden University on the use of fire shows that 400,000 years ago knowledge and skills must already have been exchanged…

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.

An international team of researchers observed the full extent of the evolution of hot gas produced by an active black hole for the first time. As it evolves, the hot gas encompasses a much larger area than previously thought and even impacts objects residing at great distances. Their study is published…

An international team of laboratory astrophysicists and astrochemical modellers has shown that glycine, the simplest amino acid and an important building block of life, can form under the harsh conditions that govern chemistry in space. The results have been published this week in Nature Astronomy and…

On Friday 28 October, Leiden University organized its annual Physics Ladies Day for female high school students. To mark this festive day, we put the spotlight on four female researchers, who talk about their experiences in physics.

On Monday, 09 April 2018, Aron Fischer Ph.D., freelance mathematician and researcher of Colony and Ethereum Foundation’s Swarm team, delivered an absorbing presentation on the Ethereum blockchain, smart contracts and decentralized autonomous organizations (DAOs) at Leiden Law School. These headline-grabbing…

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,…

Christmas is coming, which means that 'Our Talents and Discoveries 2016' has been distributed. This also means that it is time to vote for the 'Discoverer of the year 2016'. Each of the eight institutes nominated one researcher that excelled in the past year. Who is your favourite?

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

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…

The research of Cathelijn Waaijer shows that scientific careers and especially their early part consist of a succession of short-term posts, or ‘quanta’; hence the title of the dissertation 'Quantized Careers'. PhD defence 24 November, 2016.

A night sky of more than 40 petabytes in size, simulating young star clusters and understanding how the body inhibits viruses: three Leiden projects have received computing time on one of the national computer systems.

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.

In a collaborative effort between the Leiden Children’s Rights Observatory, the Leiden Law Academy, UNICEF and the Petitions Section of the Office of the United Nations High Commissioner for Human Rights, a symposium held last week commemorated the tenth anniversary of the Optional Protocol to the Convention…

In ten years, it is projected that ten percent of global civil aviation operations will be unmanned. Are the current international aviation laws and regulations up to these technological developments? Fernando Fiallos will defend his dissertation on 14 November 2019.

An international team of researchers, involving members from the ERC Synergy project NEXUS 1492 based at the Leiden University, the Universities of Oklahoma, Copenhagen and York reveal challenges when studying ancient microbiomes in a recent issue of Scientific Reports.

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

Thijs Porck has successfully applied for a subsidy for a research project that will study the early correspondence of G. J. P. J. Bolland, an autodidact student of Germanic languages who would later become one of the country’s leading philosophers. The project is sponsored by Leiden University Fund…

Raymond Corbey holds a chair in both Philosophy of Science and Anthropology at the Faculty of Archaeology, to which he has been attached since 1993. The faculty’s 'embedded philosopher', as Dean Kolen likes to call him, is hard to pin down in terms of the usual specialties at the faculty because of…

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.

A flint tool covered with a tar-like substance has turned out to be a top scientific find. Research by a Dutch team of scientists showed the find to be a piece of birch tar that was extracted 50,000 years ago by Neanderthals using complex techniques. The tar was used as an adhesive to make it easier…

On 8 and 9 May 2018 the Workshop 'Challenging the Liberal World Order: The History of the Global South, Decolonization and the United Nations, 1955-2000' takes place at Leiden University.

By adding their signature to the collaboration agreement on 31 May, Leiden University, TU Delft, space research institute SRON and NWO confirmed the move of SRON from Utrecht to South Holland. From 2021, the headquarters of the space research institute will be located on the Campus of Leiden Univ…

The directorate of the Netherlands Research School for Astronomy (NOVA) has two new members. Ronald Stark (currently at NWO) will be the new Executive Director of NOVA from 1 September. Amina Helmi (Professor of Dynamics, structure and formation of the Milky Way at the University of Groningen) will…

The Lorentz Center is a melting pot that is visited by researchers from around the world. ‘Miracles happen’ during the five-day interactive workshops at the Center. And there is an extra reason to celebrate the center’s 25th anniversary. On 28 April, the Dutch Research Council (NWO) and Leiden University…

From the discovery of exoplanets to the hunt for extraterrestrial life. At the Astronomy Gala on 17 December in the concert hall in Leiden, astronomers looked back, but above all ahead. With King Willem-Alexander as guest of honour.

Language evolution, targeted drugs or archaeological interpretation. Researchers are making increasing use of supercomputers that can rapidly process large quantities of data. This is one reason why the University data centre will be extended and updated. ‘Datamining means we can get a better picture…

Scientists have long been puzzled why it is easier to produce hydrogen from water in an acidic environment than in an alkaline environment. Marc Koper comes with an explanation: the reason is the electric field at the surface of the catalyst, which is larger in an alkaline environment, as he writes…

They can play a role in metabolic disorders and can break down tough plant fibers: β-glycosidases are enzymes that play many roles in nature. Fredj Ben Bdira changed these enzymes in order to enhance the production of clean energy and to improve the treatment of patients with metabolic diseases.

Exploring the minds of our primate cousins in the wild, using under-exploited observations of their travel paths. A large set of observations of the travel paths of wild primates provides new opportunities for in-depth insights in the evolution of the mental abilities that primates, including ourselves,…

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…

The winner of the highest scientific distinction in mathematics, an explanation for wine tears and much more mathematical theory and application. From 8 to 12 July, 550 mathematicians will meet in the center of Leiden to discuss differential equations.

Beautiful microscopic specimens play the leading role in the course 'Biodiversity Plant' for first-year Biology students. Normally these are put back in storage right after the course. But not this year!

The research group headed by Leiden chemist Marc Koper has discovered a catalyst that minimizes the production of chlorine gas during salt water electrolysis. The invention can enable the direct production of hydrogen from seawater. The article has been published in the Journal of the American Chemical…

In the past decades terrorists have regularly surprised us with unexpected and spectacular attacks, such as the one on the World Trade Centre in New York. How can intelligence services stay one step ahead of them? Consult Charles Darwin and Steven Spielberg is the advice of terrorism expert Yannick…

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…

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.

On Friday, April 5, the Ecuadorian police stormed the Mexican Embassy in Quito to arrest former Ecuadorian vice president Jorge Glas Espinel.

This year, an NWO PhD in the Humanities grant went to Mink van IJzendoorn, enabling him to investigate the disappearance of amphorae. ‘We take means of packaging and shipment for granted, but they are deeply ingrained in our daily lives; they are crucial.’

On 12 September 2024, the official ceremony opening the academic year 24-25 for students of the European Law master’s programme took place at Leiden Law School, organised by the Europa Institute.

It has only recently been discovered that single-celled organisms (bacteria and archaea) also have histones—proteins that structure DNA. Now, Leiden PhD candidate Samuel Schwab has found that the histones in these organisms are much more diverse than previously thought. Schwab and his colleagues describe…

Astronomers have used data from the European Gaia Space Telescope to discover 55 high-speed stars launched from the young star cluster R136 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This increases tenfold the number of known “runaway stars” in this region. The team of astronomers,…

What is freedom worth in times of hunger? ‘Beleg’ is a modern interpretation of Lucretia van Merken’s 1774 play. With five performances in Leiden’s Schouwburg theatre, the play is a prominent part of the Relief of Leiden celebrations, and Leiden alumni are playing a big role. Take a look behind the…