Sirius Space Services

Learn about Sirius Space Services, a French aerospace company developing reusable launch vehicles and rocket engines for small satellite transportation and orbital access.

Sirius Space Services is a French aerospace company developing reusable orbital launch vehicles and propulsion systems for small satellite missions. Its Sirius launcher family includes Sirius 1, Sirius 13, and Sirius 15, designed to accommodate different satellite payload capacities and orbital requirements. The company develops its STAR-1 rocket engine and uses precision machining and metal additive manufacturing to produce launch vehicle components. Its engineering programs focus on first-stage recovery, dedicated satellite launches, and flexible orbital transportation. Sirius Space Services is targeting its first launch in 2027, with development and testing activities supporting future commercial operations.

Launcher

Launcher is a company that develops and deploys rockets for small satellite launches and payloads into orbit.

Launcher is a space technology company acquired by Vast in 2023 that developed liquid rocket propulsion systems and orbital transfer vehicles for the small satellite market. Its technologies include the E-2 liquid rocket engine, which uses an oxygen-rich staged combustion cycle with liquid oxygen and kerosene propellants, and the Orbiter spacecraft platform for satellite transportation and hosted payload missions. Following the acquisition, Launcher shifted its focus toward the E-2 engine rather than developing its own launch vehicle.