Photos: The future of flight

Members of the Solar Impulse project show off a scale model of their planned aircraft. Their goal: to fly around the world with the solar-powered vehicle. Left to right: Luiggino Torrigiani, director of marketing; Andre Borschberg, CEO; Bertrand Piccard, founder and president; and Brian Jones, head of the sustainable development program.

Photo by Pierre Verdy/AFP/Getty Images