There was a problem though; solid rocket motors are far too common to be interesting, and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before ...

The earliest rockets were solid-fuel rockets powered by gunpowder ... All rockets used some form of solid or powdered propellant up until the 20th century, when liquid-propellant rockets offered more ...

National Air and Space Museum Rocket, Liquid Fuel, R.H. Goddard 1935, A-Series National Air and Space Museum Nozzle, Rocket , Solid Fuel, 12AS-1000D-5, JATO (Jet-Assisted-Take-Off) Unit National Air ...

the replacement of liquid rocket fuel indicates that older types of rockets may have been targeted by the thieves. Modern models use solid fuel, a safer and more efficient option for daily rocket ...

Kim said solid fuel is much cheaper than liquid fuel and is more useful in times of lifting low-earth orbit satellites. He said South Korea could use solid fuel-based rockets to launch military ...

On this date in 1986, the space shuttle Challenger exploded seconds after liftoff, destroying the orbiter and killing her crew of seven.

He had an a great idea – is it possible to 3D print a solid fuelled rocket ... sophisticated 3D printed rocket engines lately, such as this vortex-cooled, liquid-fuel engine, and over on ...