#Regram #RG @theeconomist: Economist pics of the year: Solar Impulse 2 flies over the pyramids of Giza on July 13th 2016 prior to landing in Cairo, Egypt. In July 2016 the solar powered plane, piloted by Swiss pioneer Bertrand Piccard, successfully completed its historic attempt to fly around the world without the use of fuel, powered only by the sun's energy. The epic journey took more than a year to complete. Credit: AFP/Solar Impulse 2/Jean Revillard #picsoftheyear #SolarImpulse2 #solarpower #roundtheworld #solarenergy