Solar Impulse Pilots Get Ready for Sun-Powered Flight Around World — nbcnews.com

Two years ago, Solar Impulse's Bertrand Piccard and Andre Borschberg became the first pilots to fly a solar-powered plane across America without burning a drop of fuel. But that was just a warmup for the months-long, 22,000-mile odyssey that's due to begin Monday. "The real thing, of course, is around the world," Piccard, the venture's co-founder and chairman, told NBC News. "That's the ultimate flight. You cannot do more than around the world."

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