Goodbye to conventional rocket engines: Chakram uses supersonic detonation waves and just survived a 300-second hot-fire test

Astrobotic’s Chakram engine survived a five-minute detonation burn that could reshape future rocket propulsion.
Scientific American

See Astrobotic pull off a major test of its ‘ring of fire’ rocket engine

Rotating detonation rocket engines work differently than traditional rockets to maximize thrust while using less fuel—an advantage that could help spacecraft explore farther in the solar system ...
autoevolution

Rotating Detonation Rocket Engine Named After Indian Weapon Sets Record for Burn Time

If we really are to fulfill all our dreams of expanding our reach into the solar system, we definitely must come up with new rocket engine technologies for our spaceships. The industry knows this, and ...