Most any rocket engine you’d find on a spacecraft – save for solid or hybrid rockets ... and a test that involved throttling the engine. It’s an extremely impressive piece of kit ...

Since solid-fuel rockets can’t technically be throttled ... so in his 2020 landing attempts, he achieved some throttling effect by oscillating the TVC side to side, reducing the vertical ...

This story has been changed to clarify that it is the world's largest single-segment solid rocket. China says it fired up the world’s largest single-segment solid-fuel rocket engine for the ...