Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.
NASA and General Atomics tested the fuel by exposing it to temperatures up to 3,000 Kelvin (4,940 Fahrenheit or 2,727 Celsius ...
Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.
While this latest test doesn’t make nuclear-powered rocket engines viable just yet, it’s an important step on the journey.
Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...
Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...