Solar-Powered Airplane Completes First Leg Of U.S. Flight

The Solar Impulse, an airplane traveling across the United States using only solar power, is in Phoenix today, after reaching Arizona from California Saturday. It took the plane about 20 hours to travel from Mountain View, Calif., near San Francisco.

Source: http://www.npr.org/blogs/thetwo-way/2013/05/05/181407952/solar-powered-airplane-completes-first-leg-of-u-s-flight?ft=1&f=1003

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