Duggleby said Venus is considering a couple of options for its next test. If it can identify a range for supersonic flight, it may attach its existing rotating detonation engine to the 8-foot drone.

North Korea says it conducted the final ground test of a solid-fuel rocket engine for a long-range ballistic missile in its ...

The engine, MAREVL, ran for 60 seconds on Friday at bluShift's newly expanded test stand at Brunswick Landing.