Leiden 2022 - Leiden is European City of Science in 2022, during which there will be a 365-day long programme for anyone with a curious mind. The ultimate goal of Leiden European City of Science is to connect science and society.


Every two years, EuroScience in Strasbourg awards the title of European City of Science to a new European city. The title is awarded as part of Europe's largest biennial multidisciplinary science conference: the EuroScience Open Forum (ESOF). In July 2022, Leiden hosted the 10th edition of ESOF. In September 2022, the EU Contest for Young Scientists (EUCYS) took place in Leiden, the city with the oldest university of The Netherlands. 

Have a look at the ESOF aftermovie!
Hooglandsekerkgracht in Leiden

365 days

During Leiden 2022 there was a 365-day long programme for anyone with a curious mind. The year was organized together with numerous national and international partners to connect science and society. Anyone could participate, from leading international scientists to curious kids — as well as artists, companies, students, community centres and museums.


Seeing Stars Leiden

Daan Roosegaarde and UNESCO brought the stars back to Leiden. Lights out, stars on!” Daan Roosegaarde, artist: “Everyone lives in their own bubble, disconnected from each other. I realized that every night an impressive light show can be seen in the sky, hidden. Seeing Stars brought the stars back to your street. The stars are only a light switch away from us.” Kathleen Ferrier, Chair Dutch UNESCO Committee: “Looking at the stars makes you feel connected to each other; after all, we are all part of the same cosmos. This is the common and universal legacy I strive for. Seeing Stars is an important step forward.”  

Discover Seeing Stars Leiden
Seeing Stars

Find out what else there is to do in the Leiden region!