SOLAR IMPULSE 2
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!
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