Plasma jet engines promise a future of fuel-free, electrically driven flight, but the technology faces a stubborn obstacle that no amount of enthusiasm can wish away. Ionizing air to generate thrust ...

After centuries of waiting, Chinese scientists have developed the world’s first-ever plasma car engine, a technology that promises to revolutionize transport in the next few years. The new engine, ...

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 ...