The Solar Impulse HB-SIA solar-powered aircraft (Photo: Solar Impulse)
The Solar Impulse solar-powered airplane is due to fly across America next spring (Photo: Solar Impulse)
Flush with success from their 6,000-km (3,728-mile) Europe-to-Africa round-trip flight earlier this year, the duo behind the Solar Impulse solar-powered aircraft are now planning on flying it across America next spring. It will mark the first time that a solar-powered plane has traversed the country.
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