VALLETTA, Malta — Launch startup HyImpulse successfully tested its 16,800-pounds-force hybrid rocket motor this month at German space agency DLR’s Lampoldshausen facility. Headquartered in Neuenstadt am Kocher, Germany, HyImpulse is developing its three-stage SL1 launch vehicle designed to carry payloads of up to 500 kilogram to Sun-synchronous orbit. The light-lift […]