An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

The European Space Agency (ESA) has published an interim data release from Gaia, the space telescope mapping out the Milky Way in 3D. The first scientific papers published today reveal half a million stars in the Omega Centauri globular cluster, nearly 400 candidate gravitational lensers and the positions…

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. On March 25, he has a busy day.

For conducting experiments involving animals, you need a project license and a valid research plan. On this page, you will read what this entails and how to submit these documents. You will also find other relevant information regarding conducting research involving animals here.

If you work at the university and are in scale 11 or above, you have the option of concluding a function-based contract.

Imagine you’ve accidentally sent the wrong grade transcript to a student or you've left your laptop on the train; a momentary lapse of concentration can result in a data breach or security incident. By responding quickly, we can limit the damage and consequences for privacy: both your own and the university’s.…

If you come to work by car, you can apply for a parking subscription for one of Leiden University’s parking areas. The subscription is simply added to your LU Card. You can then use your LU Card to access the parking area.

Every year, evaluations are carried out for each component of a programme. This is done at several levels: (1) per course and (2) per year of a programme. The OSC checks which subjects have been taught in each block. They collect information about the teaching methods, the names of the lecturers,…

Our Research Funding Community continuously gathers intelligence that helps with preparing proposals efficiently and to give them the necessary competitive edge. All grant advisors are happy to share this information, and to guide you throughout the process. For quick reference, this page summarises…

In this section you will find a listing of national teaching awards, fellowships and grants.

Via Microsoft 365 and OneDrive you can work from all kinds of places and on different devices without having to use Remote Workplace.

Bachelor, Master

Most of us are spending more time looking at computer screens due to remote working and online meetings. Video calls have become a popular way of keeping in touch for professionals but it’s not without its problems. The two most frequently heard complaints are a general sense of fatigue and a lack of…

Giving an effective lecture requires not only careful preparation of the content, but also clear structures, visual support and presentation techniques. Some guidelines and tips to keep your lectures engaging and well structured are presented here.

Are you moving to the Netherlands with your partner and looking to build your own career here? Whether your partner will be working at Leiden University or elsewhere, this page is for anyone relocating to the Netherlands and exploring job opportunities. Here you’ll find useful tips, resources, and links…

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…

Our Research Funding Community continuously gathers intelligence that helps with preparing proposals efficiently and to give them the necessary competitive edge. All grant advisors are happy to share this information, and to guide you throughout the process. For quick reference, this page summarises…

Bachelor, Master

The Netherlands have an excellent public transport system. You can get almost everywhere by train, bus or tram. All you need is an OV-chipkaart. When it comes to getting around in Leiden it might be worth to consider buying a (secondhand) bike. Do you prefer travelling by car? You will find more on…

Via Microsoft 365 and OneDrive you can work from all kinds of places and on different devices without having to use Remote Workplace.

Working in a laboratory is different from working in an office. Some of the rules that apply when working in or around a laboratory are given below.

The Party Catering Administration Office has special catering packages for the Faculty Club, and an overview is presented below.

Conference

When moving to the Netherlands, it is important to know whether you are considered resident tax payer or non-resident. Both residents and non-residents are taxed on their taxable income. A number of criteria help determine your status as resident or non-resident.

Many Leiden University employees engage in ancillary activities. The University stimulates such activities because we believe that the right place for a university is at the very heart of society. Ancillary activities bring together research, teaching and society. However, there are some limits on what…

This academic year, seven (teams of) teachers will receive a Grassroots or Grass shoots grant. Here you can read about their projects.

For the academic year 2025-2026, nine (teams of) teachers will receive a Grassroots or Grass shoots grant. Here you can read about their projects.

In 2023-2024 seven (teams of) teachers received a Grassroots or Grass shoots grant. Here you can read about their projects.

Personal development, Working effectively

For a 38-hour week you have 232 vacation hours per year. If you make use of the flexible hours option, you will have more or fewer vacation hours. If you work part-time, your vacation credit is proportionate to your contracted hours. If you are in salary scale 11 or above, you may choose to conclude…

Alongside allowances for business travel, commuting and relocation, there are also a number of smaller allowances for which you may qualify. Find out more about the meal allowance, emergency response team allowance, computer glasses allowance and the trade union contribution.

Are you considering preparing a Kiem application? Learn from those who came before you! Here you find the recommendations and insights from colleagues who previously realised a Kiem project.

In an inclusive learning environment, every student feels welcome, valued and respected.

If you work at Leiden University, you automatically accrue pension with the Algemeen Burgerlijk Pensioenfonds (ABP). You can supplement your pension with ABP. In addition to a retirement pension, ABP also offers surviving dependents insurance and a work disability pension. From 1 January 2027, the…

Management

The PhD track involves many different aspects. As well as important administrative steps that you have to take, for example, there are also introductory activities, a training programme and opportunities for research abroad.

In the Mediacenter in Wijnhaven, podcasts can be recorded with user-friendly equipment and four microphones. In addition, we offer the option to record low-threshold videos in the same soundproofed space.

Course

How do you fulfill a chairing position during a team meeting? How do you visualise a dataset for a presentation? How do you write the introduction to a scientific article? All Science students can find the answers to these and many more questions in the 100+ skill modules on the digital Science Skills…

Course

A surprising amount of life grows, crawls and flutters around Leiden University’s buildings. During the Biodiversity Challenge – from 30 April to 2 July – the campus will turn into a research site, and you’ll be the researcher. Grab your phone, take a look around and record what you see.

To understand the universe as a whole, simulations on a cosmic scale are required. An international team of astrophysicists, led by Leiden University, is today making one of the largest cosmological datasets ever available for free. It comprises more than 2.5 petabytes of simulation data.

Investing in contact with former students: everyone recognises its value, yet in practice it often slips down the priority list. Even so, a small, regular point of contact can make a difference, for students, staff and education itself. Frank de Vos and Tom Wilderjans share how this works for their…

The cost-sharing standard (kostendelersnorm) – a regulation affecting recipients of supplementary income for older people, often with a migrant background – may lead to financial and health problems for thousands of people, economists Ernst-Jan de Bruijn and Heike Vethaak have found.

The Crafting Resilience Kick Off on 30 March seeks to inspire conversations around new state-citizen relations in the social domain. At this conference, international researchers discuss core questions at the heart of the new NWA Crafting Resilience project.

Leiden University supports the new Zuid-Holland Acceleration Programme, which builds on the Growth Agenda for Zuid-Holland and focuses on accelerating innovation, sustainability and economic growth in the region.