ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has made more than three trillion observations of about two billion stars and other cosmic objects. ‘Gaia is already the discovery machine of the decade,’ Leiden…

Social

Data Science & AI student Nataliia Bagan combines a passion for mathematics, language, and artificial intelligence. Her exceptional bachelor’s thesis on improving reasoning in large language models earned her a nomination for the Leiden Science Young Talent Award 2025.

You're about to graduate. That means there’s a lot to be arranged. The university expects you to take certain steps, as does your faculty and/or institute. Your faculty has various regulations and procedures in place that you need to follow carefully when arranging your graduation.

You're about to graduate. That means there’s a lot to be arranged. The university expects you to take certain steps, as does your faculty and/or institute. Your faculty has various regulations and procedures in place that you need to follow carefully when arranging your graduation.

Incoming exchange Erasmus forms, transcripts, grades and credits

A small cat with a big personality has captured the hearts of students and staff at the Faculty of Science. The black-and-white Bobby even has his own Instagram fan account. Who are the people behind Bobby ‘the astrocat’? ‘He helps connecting people on campus.’

Get an impression of what the International Experience Week is all about by looking back at last year's presentations.

Organisation

Education

Arts and leisure, Arts and leisure

Taking exams well is a skill you can learn. It requires good preparation and the right strategy. An open-book exam requires a very different approach to a multiple-choice exam. The tips below will come in handy when revising and during the exam itself.

Good academic writing skills are essential for the successful completion of your study programme. Learn about the best ways to write and how you can motivate yourself to write well by taking a look at the tips on this page.

You're about to graduate. That means there’s a lot to be arranged. The university expects you to take certain steps, as does your faculty and/or institute. Your faculty has various regulations and procedures in place that you need to follow carefully when arranging your graduation.

Just like last academic year, students from Leiden University will get the chance to gain practical experience at KPN. In cooperation with the telecom company, two Impact Challenges are being offered, around the theme 'building bridges'.

Want to build a strong set of skills for your future? As a Science student, you have free access to plenty of support and resources.

It is possible to develop and improve your study skills. By using the SMART method you can learn to study strategically, be academically competent, have confidence about taking exams and manage your time well. Of course all this is only possible if you put in enough hours.

Many students find speaking in front of their classmates and lecturers nerve-wracking. Giving a presentation can be rather stressful. But good preparation is half the battle and following the tips below can help reduce any anxiety.

Leiden University has taken 14th place in the UI Green Metric, a global sustainability ranking for universities.

Once again the ONS student party (Enterprising Leiden Students) is the biggest party in the university elections. This gives the party three seats in the University Council. The staff are represented in the UR by FNV Government, with 5 seats.

The number of students enrolled at Leiden University remained stable this year. As at other Dutch universities, the growth in recent years seems to have levelled off. Leiden University is also following the national trend in terms of intake at the bachelor’s and master’s levels. The number of international…

Nearly all university buildings at the Leiden Bio Science Park will be open and operating again as of Wednesday 24 May. Last night a team worked hard to restore the power to the buildings in phases and this was successful. Students and staff can work and study there again.

Leiden University has taken 17th place in the UI Green Metric, a global sustainability ranking for universities. Over 1,400 universities from all around the world took part in the ranking.

Organisation

In the University elections in April, the eight student seats on the University Council have gone to six parties, and newcomers the Liberal Student Party and the Party for Biomedical Students have each won one seat.

Organisation

Leiden University has secured fifth place in SustainaBul, the sustainability ranking for universities and universities of applied sciences in the Netherlands.

Koos Biesmeijer, Professor of Natural Capital, and Claire van Megen, an Educational and Child Studies student, are in with a chance of winning Leiden’s Person of the Year title.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Almost everywhere in the world where the post exists, the beadle is a ‘master of ceremonies’ who only makes his appearance on special occasions. In Leiden the beadle does much more. He is indispensable at dissertation defences and orations. He directs ceremonies and is a master at calming nerves.

Smiling faces, a mass dance and a bit of awkwardness: after two ‘corona editions’ of EL CID, the Leiden introduction week is back with a vengeance this year. A total of 3,412 first-year students from Leiden University and University of Applied Sciences Leiden, accompanied by 486 mentors, started EL…

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Bachelor

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

A minor allows you to develop your knowledge beyond the boundaries of your study programme, or to specialise further in your own field of study. You can follow a minor in Leiden and also in Delft or Rotterdam.

‘All the groceries, but not a fig for young workers’, read a banner during the occupation of Ahold’s headquarters in 1981. ‘For a long time, young workers were not taken seriously, but they managed to put themselves on the map’, says historian Rosa Kösters.

The Rein Dool painting depicting board members of Leiden University will be moving soon to the Reception Room in the Academy Building, where more people will be able to see it.

Not one, but two Olympic rowing medals with a Leiden-Delft touch. Master student Life, Science and Technology Stef Broenink won silver in the double pair. He and partner Melvin Twellaar were in front for a long time, but were overtaken by the French at the last minute.

The ‘Amorphophallus titanum’ at the Hortus botanicus Leiden is blooming. This Titan Arum, also known as the ‘giant penis plant’, last flowered in 2009.

The Durham Declaration was presented at the Climate Symposium marking the Coimbra Group’s 40th anniversary on 26 March. Leiden University is proud to be one of the first signatories of this declaration.

The results of the 2025 university elections are in. Who will represent us in the participation organs?

No joke: on 1 April, the antique Van de Wall telescope was relocated to the atrium of the Gorlaeus Building. Have you spotted it yet?