North Korea fires solid rocket motor. North Korea said Tuesday it had conducted the final ground test of a solid-fuel rocket ...

How do you control a nuclear space propulsion system? Very carefully. To help with this, the Oak Ridge National Laboratory ...

Instead of using solid fuel elements, this innovative design uses liquid uranium fuel to heat the rocket propellant directly.

SpaceX conducted a static fire test of a single Starship 26 engine. The test demonstrated "flight-like startup for a Starship deorbit burn," according to SpaceX. Credit: SpaceX | edited by Space.com's ...