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Solar Impulse

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

The Solar Impulse takes off from Moffett Field NASA Ames Research Center in Mountain View, Calif., Friday, as a team member rides an electric bike alongside the plane. AFP/AFP/Getty Images hide caption

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AFP/AFP/Getty Images

The Two-Way

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

May 5, 2013 • 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.

Huge Solar Plane Begins Slow Flight Across The U.S.

Pilot Bertrand Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field in Mountain View, California, on Friday. Beck Diefenbach/Getty Images hide caption

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Beck Diefenbach/Getty Images

The Two-Way

Huge Solar Plane Begins Slow Flight Across The U.S.

May 3, 2013 • The ultimate goal is to fly a solar-powered plane around the globe. In the U.S., Solar Impulse is expected to finish its journey in New York City.