round-the-world flight

Solar Impulse 2 Completes First Fuel-Free Round-the-World Flight

Solar Impulse 2 completed the first fuel-free round-the-world flight in July 2016, demonstrating that advanced engineering and solar energy could power an aircraft across continents. The 40,000 km journey, lasting 16 months with 16 stopovers, showcased clean-energy technology in aviation.