Less than a month after Solar Impulse passed its first runway test, the solar-powered airplane made aviation history with its first test flight. Given the plane’s nearly 200-foot wingspan and…

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Meet the Solar Impulse. Eventually, the plane will circumnavigate the globe using nothing but solar power. Before that historic trip, however, the solar-powered airplane must pass a few tests. And…

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The Solar Impulse aircraft, officially known as HB-SIA, successfully underwent its first engine run up on Friday at an airbase near Zurich in Switzerland. It is designed to make the first solar-powered flight around the world.

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