Russia is quietly testing a new plasma propulsion system that, if it performs as claimed, could dramatically change how long it takes to travel to Mars. Early results suggest a leap in speed and ...

Plasma jet engines promise a future of fuel-free, electrically driven flight, but the technology faces a stubborn obstacle ...

Long before any spacecraft can attempt a faster journey to Mars, scientists must first solve one of space exploration’s biggest challenges: propulsion. Chemical rockets, used to launch spacecraft into ...