Solar Impulse 2 completes global fuel-free flight00:59This browser does not support the video element.Azizi, Rey07/26/2016July 26, 2016The first fuel-free aircraft to circle the globe has relied on 17,000 solar cells embedded into its broad wings. Pilots Piccard and Borschberg have returned to Abu Dhabi after completing a 42,000 kilometer journey.Copy linkAdvertisement
