Several thousand pupils and their teachers came to this year's Researcher's Friday at Vetenskapens hus and AlbaNova on September 27, 2024. Fysikum had a packed programme with scientists giving lessons, demonstrations and tours of our laboratories. Researcher's Friday is part of the European Researchers' Night science festival with events across Europe on 23-28 September 2024. In 2019, European Researchers' Night reached 1.6 million visitors in 27 countries. 433 cities participated and 36,000 researchers were involved.