[Richard] does say making larger rocket engines out of 2 or 3-inch PVC may not make much sense due to the increased chamber pressures. There is a fairly clever reinforcement method for these PVC ...

Private space company Stoke announces a new design for a rocket engine that could make the Nova launcher's second stage ...

It’s an extremely impressive piece of kit, and hopefully [Rocket Moonlighting] will release the CAD source so we can make our own. EDIT: [RM] tells me his engine cost less than $2000 to make.

Russia is testing a new plasma rocket engine that would drastically reduce travel time from earth to mars using charged ...

A laboratory prototype of a plasma electric rocket engine based on a magnetic plasma accelerator has been produced by Rosatom ...

The development of the engine is expected to make interplanetary trips much faster and expand humanity's access to worlds ...