Poland's President Karol Nawrocki (C) holds a remote control beside Switzerland's President Guy Parmelin (L) as he interacts with students next to the Mars rover Polaris of the Xplore project during his visit at the Swiss Federal Institute of Technology of Lausanne (EPFL) in Ecublens on May 28, 2026. Nawrocki is on two-day state visit in Switzerland. (Photo by Fabrice COFFRINI / AFP via Getty Images)