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 ...

A laboratory in Troitsk, Russia, may have just nudged humanity closer to interplanetary commuting. Scientists at Rosatom, the country's state nuclear corporation, have revealed a working prototype of ...

The world’s heavy reliance on fossil fuels, especially for transportation, has left a deep mark on both the planet and public health. Burning these fuels releases a flood of greenhouse gases, which ...

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 ...