Just over a year ago, in March 2015, two Swiss engineers launched their round-the-world flight on a solar-powered airplane: Solar Impulse 2. The two men, André Borschberg and Bertrand Piccard, designed the single-pilot plane, which began its odyssey in Abu Dhabi, and they alternate laps. The longest lap so far was crossing the Pacific from Hawaii: three days! They will be crossing the Atlantic early in June, and will end their odyssey later this summer, back in Abu Dhabi.
They are monitored by a round-the-clock team in Monaco, which I visited last week.
Right now they are flying over America, heading towards New York after several stops along the way. There is a camera in the cockpit, and I spoke directly to André several days ago, while he was flying from Tulsa, Oklahoma, to Dayton, Ohio.