ESA’s European Space Security and Education Centre (ESEC) at Redu, Belgium, has operated since 1968 as a ground-station and space-security campus. It hosts Proba mission-control centres, the Space Weather Data Centre, ESA Education training and CubeSat facilities, and part of ESA’s Estrack network. The site provides S-band tracking links and in-orbit testing for telecommunications and navigation satellites, including Galileo signal testing, across 43 steerable antennas. It is a working technical campus; confirm current ESA access or education arrangements before visiting.