Past activities
Nieuwe activiteiten
Space Buzz: Introducing space to policy makers through VR
The Space Buzz opens her doors to the public during The Space Week, during multiple days and at various locations. The Spacebuzz will be loc...
Playing with mathematics
Maths is really everywhere. Make a whirlpool and build your own bridge. Discover what sound looks like and play with perspective like an art...
Planktonium
Museum De Lakenhal shows planktonium by Jan van Ijken: a magical art film about the life of plankton.
The Leiden Maths Walk
For lovers of maths, there's a walk they can go on all by themselves: The Leiden Maths Walk with challenging mathematical questions.
Exhibition: Moving Perspective
EST presents the exhibition Moving Perspective
Lunapark Funfair
The funfair is one of the oldest and most beloved parts of the 3 October celebrations in Leiden. Like a colorful ribbon, the funfair winds t...
Route of Discoveries
There have been a lot of amazing and important discoveries done in Leiden. Follow the Route of Discoveries: see new places in the city or fi...
Space Citizen Forum
During the ESTEC Open Day people can become actual Space Citizens and support ESA in research and innovations.
Exhibition: Everything Under Control
TROEF is the place were Stichting ROEM displays artwork. From the 16th of September onwards, there will be a new exhibition named "Everythi...
Seeing Stars Citizen Science
During the night of Seeing Stars Leiden, Citizen Science will try to answer many burning questions!
More-than-Planet
Starting on the 2nd of July, you can view a new exhibition at the Leiden Observatory: More-than-Planet. How do we imagine our planet?
What is floating in the Leiden canals during Leidens Ontzet?
Will you also join the clean-up with the plastic spotters? They collect litter in the Leiden canals from canoes and investigate how much and...
Planktonium
Museum De Lakenhal shows planktonium by Jan van Ijken: a magical art film about the life of plankton.
The Leiden Maths Walk
For lovers of maths, there's a walk they can go on all by themselves: The Leiden Maths Walk with challenging mathematical questions.
Exhibition: Moving Perspective
EST presents the exhibition Moving Perspective
Lunapark Funfair
The funfair is one of the oldest and most beloved parts of the 3 October celebrations in Leiden. Like a colorful ribbon, the funfair winds t...