Science Events

• Plants & Planets

  Plants & Planets

  In Plants & Planets you will travel through time and space: from the Big Bang to th...

  weekly

• Triceratops: the herd

  Triceratops: the herd

  Triceratops horridus: this giant herbivore is an icon of the dinosaur era. And extremel...

  until 31 August

• Kaiser Spring Lectures: Astrochemistry

  Kaiser Spring Lectures: Astrochemistry

  The Kaiser Spring Lectures are an annual series of public lectures organized by Leiden...

  Saturday 29 March

• Lorentz lecture

  Lorentz lecture

  Discover the impact of gender-affirming hormone treatment and aging on the health and w...

  Tuesday 1 April

• Lustrum Exhibition ‘The Eternal Student'

  Lustrum Exhibition ‘The Eternal Student'

  What is a university without its students? The university celebrates 450 years of study...

  23 April until 26 October

• Science café Thee

  Science café Thee

  Come listen, try, and look around. You can drop in whenever it suits you, stroll past t...

  Friday 16 May

• Science café Composites

  Science café Composites

  What, are lettuce, endive, witlof and artichoke related to dandelion and daisy? Come li...

  Friday 6 June

• Science café Papilionaceous plants

  Science café Papilionaceous plants

  Come listen, try, look. You can drop in whenever it suits you, stroll along the stalls,...

  Friday 8 August

• Days of Art&Science

  Days of Art&Science

  During the Days of Art&Science in Leiden (15 - 21 September 2025), art and science are...

  15 until 21 September

• Science café Nightshade

  Science café Nightshade

  Tobacco and tomato are family, just like potatoes, eggplant, chili pepper, goj berry, b...

  Friday 26 September

• Science café Grass

  Science café Grass

  Come listen, try, watch. You can drop in whenever it suits you, stroll along the stalls...

  Wednesday 8 October