New ALMA observations show there is ordinary table salt in a not-so-ordinary location: 1,500 light-years from Earth in the disk surrounding a massive young star. Though salts have been found in the atmospheres of old, dying stars, this is the first time they have been seen around young stars in stellar…

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…

On 22 November Dutch Prime Minister Rutte met up with 400 Indonesian professionals, all of whom at some point studied in the Netherlands, during a young entrepreneurial and alumni reception at the Fairmont Hotel in Jakarta.

In August it was announced that Jeff Fynn-Paul was named co-recipient of a 15,000 EUR grant given by the Spanish Ministerio de Economía y Competitividad (MINECO).

An international team of astronomers has witnessed a cosmic weather event that has never been seen before.

A team of European astronomers under Leiden leadership has discovered that dust particles around a star already coagulate before the star is fully grown. These agglomerated dust particles are the first step in the formation of planets. The research publish their discovery in the journal of Nature As…

The Old Observatory has a rich history. On this page you will find a short version of the history that took place in the observatory.

Alumnus Ruurt Hazewinkel (90) has presented Leiden University with a special gift: a historic house on Leiden’s Rapenburg canal. He handed over the key to Rector Carel Stolker on Monday 25 January.

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…

Leiden astronomer Tim de Zeeuw has been appointed Knight in the Order of the Dutch Lion. He received the distinction on 14 May to mark his departure as Director General of the ESO European Astronomy organisation. The celebration took place during the 2018 Dutch Astronomers Conference in Groningen.

Our solar system probably evolved in the same way as most of the other planetary systems around us. This has been shown by German-Austrian-Dutch research on more than 870 planet-forming disks in the Orion cloud A. The five researchers, including three from the Leiden Observatory, published their findings…

The short film El Último Consejo (The Last Council), directed by alumna Itandehui Jansen, has won the Emerging Talent Award at the ImagineNative Film & Media Arts Festival in Toronto.

Last Wednesday February 1st, Leiden University College The Hague hosted the graduation ceremony of its Class of 2016 ½. 22 students received their diplomas in a festive ceremony in the auditorium of LUC The Hague. It was the first ceremony with the new dean of LUC, Prof. dr. Judi Mesman. In the inspired…

Leiden University professor of Science-Based Business Simcha Jong Kon Chin has been awarded an ERC Consolidator Grant.

Princess Beatrix celebrated her eightieth birthday on 31 January. She has a warm bond with Leiden University, having studied Law and Sociology here. Since graduating, she has been a frequent visitor to the University, to receive an Honorary Doctorate, for example, and at the re-opening of the Academy…

The Ghent Rolin-Jaequemyns International Law Institute (GRILI) is a research institute within the Faculty of Law at Ghent University. Founded in 2015 at the initiative of Prof. Tom Ruys, the Institute brings together the existing expertise within the law school in the broader international law domai…

Professor Ewine van Dishoeck, together with an international team of colleagues, has written an overview of everything we know about water in interstellar clouds thanks to the Herschel space observatory. The article, published in the journal Astronomy & Astrophysics, summarizes existing knowledge and…

Professor Lodewijk Woltjer passed away on 25 August 2019.

In the discs of dust and gasses around young stars, mysterious structures occur. Together with professor Ewine van Dishoeck, PhD student Paolo Cazzoletti investigate how we can explain these forms, such as rings, spirals and holes. On 12 December, he will defend his thesis.

The French Astronomical Society SAF (Société Astronomique de France) has awarded its international astronomy prize, the Jules Janssen Prize, to Leiden professor and IAU president Ewine van Dishoeck for her scientific achievements.

Astrophysicist Ewine van Dishoeck has been awarded an honorary doctorate from the University of Geneva. She received the award on 11 October during the Dies academicus of the Swiss university, which, like Leiden University, is part of the European research university federation LERU.

The Rutte IV cabinet will be sworn in soon. A fifth of the prospective ministers and secretaries of state studied in Leiden. Who are they and what did they study?

Lecture

Her specialist field is molecular astrophysics, and she is the most quoted scholar in her field. In this, the year of astronomy, she is the ideal person to give the Dies lecture at the university with the world's oldest astronomy institute; it goes without saying that the lecture will be on the newest…

An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.

An international team of astronomers, including Leiden’s Christian Ginski, has discovered previously unobserved structures in a debris disk around a nearby star. Article published in Nature on 8 October.

Stefan Belderbos was the first visual artist to undertake PhD research in the arts at Leiden University. His doctoral defence is on 2 December. Not only will he defend his dissertation on the integration of performance art in liturgy, he will also exhibit the material results of his research in the…

It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…

This fall, LUCIS will have the pleasure of welcoming Professor Emeritus Geert Jan van Gelder to Leiden. He is the second Abdulaziz Saud Al-Babtain Cultural Foundation Visiting Professor in Arabic Culture at Leiden University.

As Director-General of the ESO for the past ten years, Leiden University astronomer Tim de Zeeuw had ‘the best astronomy job in the world’. Back at the Leiden Observatory, he is focusing on the first 3D map of the Milky Way.

Astronomy departments at Dutch universities is among the top of the world rankings for astronomical institutions. This is the conclusion drawn from a recent evaluation of the Netherlands Research School for Astronomy (NOVA) and the astronomy institutions of the University of Amsterdam, the University…

The Dies Natalis for alumni was held on Saturday 10 February, organised by the Leiden University Fund (LUF) together with the University. Almost 500 alumni came together in the Kamerlingh Onnes building to celebrate the 443rd anniversary of the foundation of their alma mater.

An international team of astronomers including Leiden scientists publishes the image of a young star with a surrounding dust disk that is still being fed from its surroundings. The phenomenon around the star SU Aur may explain why so many exoplanets are not neatly aligned with their star. The European…

They are often referred to as ‘The Oscars of the Natural Sciences’: the Breakthrough Prizes in Life Sciences, Fundamental Physics and Mathematics. This year, the prize for physics went to the Event Horizon Telescope team, which took the first-ever picture of a black hole. Four Leiden astronomers were…

The €6.24 million EU-funded research project QSPainRelief has kicked off. The project aims to help patients suffering from chronic pain with novel, personalised combinational treatments and is coordinated by Elizabeth de Lange from the Leiden Academic Center for Drug Research.

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

A team of astronomers of Leiden University and the University of Texas (Austin, United States) has discovered a new way to map distant galaxies. They did so by observing the fingerprint of oxygen in a distant galaxy, something that is usually not possible from Earth. The researchers will publish their…

The new cabinet has finally taken office. Six of its members studied in Leiden, once again making the University a key supplier to the cabinet. Who are these alumni?

An international team of researchers led by Alice Booth (Leiden University, the Netherlands) have discovered methanol in the warm part of a planet-forming disk. The methanol cannot have been produced there and must have originated in the cold gas clouds from which the star and the disk formed. Thus,…

The Fritz Zwicky Prize 2022 for Astrophysics & Cosmology has been awarded to Prof. Ewine F. van Dishoeck for her pioneering, decades-long work in astrochemistry and molecular spectroscopy, as well as for her leadership within the astronomical community. The award was announced today by the European…

After two years, it was great to be back in Brussels again. Many thanks to all alumni and students who were present during the academic discussion on the values and the future of the EU, followed by networking drinks.

Alumni Event

Alumni Event

Lecture

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.

Have you had your eye on one of our Summer Schools? Or perhaps a Summer School elsewhere to complement your Law Master, but you have not been able to decide whether it has enough added value? One of our international alumni, Mariasole Forlani, tells us enthusiastically about her experience of the international…

Audrey Heijns explored the mindset of alumnus Henri Borel. From 1894 to 1916 he was an interpreter of Chinese and later a government officer for Chinese affairs in the Dutch East Indies. Borel's way of 'translating' Chinese was both unique and inimitable. PhD defence on 28 June.

A group of astronomers was actually examining the dust disc around the young double star CS Cha, when they saw a small dot on the edge of their images. It turned out to be a small planet of only a few million years young, which moves along with the double star. Whether it is a super-Jupiter in the making…

It is said that robots replace human interaction, but not always. This spring, the robots were the reason why the eLaw Center for Law and Digital Technologies at Leiden University in the Netherlands and Mykolas Romeris University (MRU) Law School in Lithuania got together.