Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 that used sunlight to travel around the world.
Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 that used sunlight to travel around the world. Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 that used sunlight to travel around the world.