We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and tested in his shop. It is actually using a hollow cylinder of acrylic as the fuel, with gaseous oxygen as an oxidizer.

China's state-owned main space contractor tested five different rocket engines on one day last week in preparation for future ...

Rockets, too, rely on engines for propulsion, though they are different in their design and proportions. Traditional rocket engines are built for a single launch: they ignite once to launch, and any ...

While we’re reluctant to say it for fear of being misinterpreted, the new liquid fuel rocket engine being built by Copenhagen Suborbitals is one of the most impressive, daring, and nearly the ...

A SpaceX Super Heavy rocket booster as tall as a 20-story building reappeared in the skies over South Texas minutes after blastoff in October, blazing up its engines to slow its fall back toward Earth ...