Themis reusable-stage demonstration programme

Themis is ESA’s reusable rocket-stage technology demonstration effort within the Future Launchers Preparatory Programme, with ArianeGroup as prime contractor. It develops successive ground and flight demonstrators, Prometheus propulsion integration, landing hardware, guidance, and automated ground handling. The initial T1H launch campaign at Esrange is supported by the European Union’s SALTO project; subsequent evolution hardware is intended to expand flight and recovery testing.