The European Astronaut Centre, Germany. Massimiliano Signori, System Engineer at Space Applications Services for ESA (europeanspaceagency), in the Columbus Space Laboratory Training Facility, preparing a lesson for astronauts. The Columbus lab is one of ESA's most important contributions to the International Space Station (ISS). It was also the first European permanent space-based research center. The European Astronaut Centre (EAC), founded in 1990 and situated in Cologne, Germany, is the hub for ESA's astronaut activities. It plays a crucial role in the European space program by overseeing astronauts’ selection, training, and assistance. EAC's dedicated professionals equip European and international astronauts with the necessary expertise and capabilities to journey to the International Space Station (ISS) today. Additionally, they actively prepare these astronauts for upcoming expeditions beyond the confines of low Earth orbit, heralding an exciting future exploration era. For gal...