Circumnavigational Wonder

The world’s first circumnavigation by an aircraft powered only by the sun was just completed this week. The Solar Impulse 2, created and flown by Bertrand Piccard and André Borschberg, landed in Abu Dhabi after 23 days of flight time – spread over the course of 17 months and 42,438 km (22,915 nmi) of Northern Hemisphere territory.…

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