15 May 2022, 08:11 UTC · By: Daniel Patrascu / An Australian company called Hypersonix Launch Systems is working on a scramjet rocket engine that will be powered by hydrogen
14 Jan 2022, 05:11 UTC · By: Otilia Drăgan / Boasting the world's first hydrogen-powered, self-igniting, 3D-printed scramjet engine, the Delta Velos blows competition out of the water