Last April, we caught wind of a very impressive rocket engine ... the engine using alcohol fuel and LOX pressurized by Helium, but that plan was changed to use Nitrogen as the pressurant.

and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before, so that’s what this roundup evolved into. First up is [Robert Watzlavick], who has been ...

This liquid rocket fuel becomes magnetised when near a magnetic field. So it dances and morphs when magnets are moved around it. It is called ferrofluid and it was invented by NASA's Steve Papell ...

This story has been changed to clarify that it is the world's largest single-segment solid rocket. China says it ... four times as powerful as the liquid fuel engine on the Long March 5, the ...