July 5, 2023 – On July 5, 2023 at 7:00 p.m. local time, Ariane 5, operated by Arianespace, lifted off flawlessly from Europe’s spaceport in Kourou, French Guiana, carrying Heinrich-Hertz-Satellite for the German government and SYRACUSE 4B for the French Ministry of Defence. The Heinrich-Hertz-Mission is the first dedicated German telecommunications satellite-based mission that will be used to conduct research and to test new technologies and telecommunications scenarios. The mission is managed by the German Space Agency on behalf of the German Federal Ministry for Economic Affairs and Climate Action (BMWK) and with the participation of the German Federal Ministry of Defence (BMVg). The Heinrich-Hertz-Satellit was mainly developed and built by OHB System. The SYRACUSE 4B satellite is part of the SYRACUSE IV program carried out under the leadership of the DGA in collaboration with the French Air and Space Force, and for the Space Command (CdE). Airbus Defence and Space and Thales Alenia Space joined forces to develop the SYRACUSE 4A and SYRACUSE 4B satellites so that the program could benefit fully from their combined expertise. This launch also marks the end of the remarkable career of the HM7 upper stage engine, which flew on the first Ariane 1 and on the final Ariane 5. It helped power Ariane launchers 228 times, without ever failing. This veteran of spaceflight has been a crucial element in the European space adventure. It will be replaced on Ariane 6 by the re-ignitable Vinci engine.