What if spinning molten uranium at thousands of revolutions per minute held the secret to halving the travel time to Mars?

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

Space has a trash problem, with defunct satellites, rockets, and smaller broken bits orbiting Earth at high speeds. The ...

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

A Virginia-based propulsion-focused company conducted a full-scale static fire of NASA’s Booster Obsolescence and Life Extension (BOLE) solid rocket booster. The 156-foot-long five-segment solid ...

After a series of scrubbed launches, SpaceX sent an Indonesian communications satellite into orbit Thursday night from ...