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 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.