By Maya Wei-Haas smithsonian.com January 31, 2018 In the wee hours of July 26, 2016, Solar Impulse 2 landed in Abu Dhabi to eager crowds and cameras. After 14 months of travel and 550 hours in the air, the plane
By Maya Wei-Haas smithsonian.com January 31, 2018 In the wee hours of July 26, 2016, Solar Impulse 2 landed in Abu Dhabi to eager crowds and cameras. After 14 months of travel and 550 hours in the air, the plane