On 29 Augustus 2019 there will be a book presentation

How do you turn your thesis into an academic article? That's a question Floortje Fontein, who conducted research into inclusive leadership, can answer. She looked at how public managers manage a diverse team. She got a 9 for her thesis and is currently working on several articles based on the results…

The project has been done in the Quantum Matter Optics group under the supervision of Prof. dr. Tjerk Oosterkamp and Dr. L. Bossoni. The title of the presentation is:

The project has been done in the Quantum Matter Optics under the supervision of Dr.ir. Sense Jan van der Molen and Dr. Johannes Jobst. The title of the presentation is:

We are happy to announce the 4th annual LION Image Award!

We are happy to announce the 3rd annual LION Image Award!

In addition to the walk-in tours at the visitor center, we also offer private tours for groups. These tours delve deeper into the history of the building, but also offer the opportunity to learn more about astronomy in general.

The oldest university in the Netherlands was founded on 8 February 1575 in the Pieterskerk in Leiden. This was at the time of the Eighty Years’ War with the uprising of the northern provinces against domination by the Spanish.

With its iconic buildings, Leiden University has a strong presence throughout the city. The university has left its mark clearly on museum collections in the city.

The Faculty of Science is located at the Leiden Bio Science Park. It was founded more than two centuries ago and currently, more than 8000 people are working and studying at the eight institutes.

From children’s inability to identify animals to a big protest at the opening of the academic year: below are some of our most popular articles of 2019.

Promotor: H.S. Overkleeft, J. Neefjes, Co-promotor: M. van der Stelt

The Dutch Department of Justice will give imprisoned terrorists the opportunity to earn money. This should have an positive effect on the resocialisation of detainees.

Betty de Jonge is a household name in our faculty. As the person behind AskBetty, she knew how to answer every question about Office. Starting this month, she has officially retired.

World-famous among astronomers, humble, and averse to conventions. On 23 April, the Dutch biography about Henk van de Hulst was published. Biographer Dirk van Delft: ‘This remarkable man deserved a biography.’

On Wednesday September 26th, theoretical physicist Sean Carroll will give an Ehrenfest colloquium. It is part of a lecture series that has been running since 1912 and was founded by physicist Paul Ehrenfest.

At the Dies Natalis Willem Otterspeer, Professor Emeritus of University History, presented the fourth and final volume of Groepsportret met Dame, his series on the history of Leiden University. De 'Strategie van de Aanpassing' covers the period 1876-1975. Otterspeer talked about his book in a podcast…

University lecturer Lucien van Beek has been awarded a LUF Praesidium Libertatis Grant. He will use the sum of 75,000 euros to research the thinking of people in ancient and prehistoric times. To do that, he will look for unusual or striking metaphors in the earliest Indo-European languages.

The Leiden wall formulae, Einstein's sink or the signature wall of Ehrenfest. It are just a few of Leiden's hidden science treasures. Alumnus from the Leiden Observatory Alex Pietrow described a few of these places on travel website Atlas Obscura.

Vera Meester has won the annual Physics Image Award 2016, with her photo of 'smiling' colloids. The Volkskrant published the picture as Image of the Week.

The Lorentz Center has started a crowdfunding campaign to raise money to renovate the common room, the place where researchers can exchange new ideas. The common room will be renovated in the autumn of 2016, at a cost of € 15,000.

Team Leiden L’expert has won the 12th edition of the NVER Moot Court competition 2019. The moot court is organised each year by the Dutch Association for European Law (NVER) and was held this year at Leiden University.

Sander Blok has won the third edition of the annual LION Image Award. He created a colorful image of gold nanoparticles with a low-energy electron microscope.

A European team of astronomers, led by Leiden-based researcher Konstantinos Migkas, has uncovered a large filament — a long, thread-like structure — of hot gas connecting four clusters of galaxies. This filament is made up of what scientists call the warm-hot intergalactic medium.

The Leiden physics institute LION has bought a painting by the American physicist Gregory Horndeski, who wrote a brilliant article about gravity in 1974. After being ignored for 35 years, Horndeski's paper became a huge hit among cosmologists, unbeknownst to Horndeski himself, who had made a career…

Mazène Hochane and Xueying Fan have won the fourth annual LION Image Award. They created a detailed colour image of a human kidney in development.

On January 16, 2022, our respected and beloved colleague Prof. dr. Bas Edixhoven passed away after a short period of serious illness.

Sense Jan van der Molen and Ivo van Vulpen have been awarded the first ENW Communication Award by funding agency NWO for their Wall Formula project. The award aims to encourage scientists to communicate about their research. It consists of a sculpture and a 10 thousand euro sum for science communica…

Smart drug carriers, uneven cosmic expansion, and solar energy storage in molecules. These are the topics of three newly awarded NWO-XS grants to researchers at the Faculty of Science.

The moving boxes are unpacked, the floors are gleaming, and the workshop rooms look fresh and inviting. On Monday 16 June, the renovated Lorentz Center will be officially reopened by dean Jasper Knoester and rector Hester Bijl. Director Roeland Merks: ‘There’s a new energy running through our centre…

On 26th and 27th February, the South African Minister of Science and Technology, Naledi Pandor will visit Leiden University as honorary Oort Visiting Professor of Astronomy for Development. She will give a ceremonial lecture on Astronomy for Development in the Academiegebouw on 26th February and lead…

Leiden emeritus professor George Miley receives an honorary doctorate from Trinity College Dublin on 8 December. ‘I never dreamed that I would receive an honorary doctorate somewhere, and this is all the more emotional because it's in the city where I spent the first 21 years of my life.’

Every week, Uwe Hensch walks past the Old Observatory in Leiden. In corona times, he decided to make a LEGO design of the historic building. His design is now finished and might go into production. You can help to make it happen.

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.

He had been emeritus for 13 years when he suddenly received an email from Poland. Professor of Inorganic Chemistry Jan Reedijk was awarded an honorary doctorate from Nicolaus Copernicus University in Toruń. During the celebration of the 550th anniversary of the birth of patron Nicolaus Copernicus,…

Professor Tom Lubensky from the University of Pennsylvania is visiting Leiden University as the 64th Lorentz Professor at the department of Theoretical Physics. He is a pioneer in the field of theoretical soft matter physics and winner of the prestigious Buckley Condensed Matter Prize. We spoke with…

For nearly twenty years the Lorentz Center has been a unique venue where researchers from all over the world work in intense collaboration. In an inspiring academic climate, researchers are free to organise specialised workshops within and across disciplines, be it humanities, social sciences or sci…

The Night of Discoveries will take place on 20 September in the area around Hortus botanicus Leiden, the Old Observatory, Pieterkserk, the Academy Building, Old School, the Faculty Club and the PJ Veth Building.

Professor Lodewijk Woltjer passed away on 25 August 2019.

Museum Boerhaave commemorated the hundredth anniversary of Einstein’s Theory of General Relativity with the exhibition ‘Einstein & Friends’. The exhibition shined light on the famous physicist’s Dutch friends and his love for Leiden. A review featuring seven images can be found below.

'We must set out an agenda, in partnership, to manufacture our own means. This will stimulate science, small businesses, jobs and society in Africa and beyond.' With these words Naledi Pandor opened the symposium 'Science Diplomacy and International Development', which was held in her honour on 27 Februari…

Astronomy can help address the problems of South Africa, while benefiting other African countries at the same time. This was the message of Naledi Pandor, South African Minister of Science and Technology, on 26 February in the Academy Building.

According to some stories, Einstein washed his hands there only once. According to others, students moved it as a joke. Whatever the case may be, Einstein's sink has enjoyed mythical status among students and employees of the Faculty of Science for decades. But what is the real story? Alumnus Alex Pietrow…

On November 21, theoretical physicist Juan Maldacena gives the Ehrenfest Colloquium. Maldacena is known worldwide as the inventor of AdS/CFT correspondence, which might be key to a theory of quantum gravity. Maldacena is winner of the prestigious Dirac Prize and the Breakthrough Prize in Fundamental…

Lecture

After 25 years, this December will finally see the launch of the long-awaited James Webb space telescope (JWST). Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, but the telescope will also reveal many new secrets…

After 25 years, December will finally see the launch of the long-awaited James Webb space telescope. Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, the telescope will also reveal many new secrets of the universe,…

‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…