The 69th Lindau Nobel Laureate Meeting (#LINO19), dedicated to physics, took place from 30 June–5 July 2019. 39 Nobel Laureates participated in the meeting – including the 2018 Laureates in physics Donna Strickland and Gérard Mourou. They met 580 international Young Scientists from 89 countries. The key topics of #LINO19 were laser physics, gravitational waves, dark matter and cosmology.