Innovators gear up work on ‘green’ hydrogen plane with plans for nonstop 9-day trip around Earth
Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...
Could Experimental Plasma Engine Rockets Get Us to Mars in 30 days?
Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.