In recent years, the development of tiny aircraft capable of staying aloft using only sunlight has captured the imagination of scientists and engineers alike. These groundbreaking innovations promise ...

The world's first solar powered aircraft completed a major milestone today when it completed an overnight flight for the first time. The Solar Impulse HB-SIA, with André Borschberg at its controls, ...

The U.S. Navy has quietly written a small but telling check to a company working on a solar‑electric aircraft that can stay aloft for months. By putting $1.4 million behind Skydweller’s experimental ...

The unmanned Helios solar-powered aircraft prototype reached the record-setting altitude of 96,500 feet in a 17-hour flight from the Hawaiian island of Kauai. The flight, according to backers of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Swiss pilot Raphaël Domjan soared more than 31,000 feet above the Alps using nothing but sunlight, appearing to shatter the ...

The dream of fully powering everything from aircraft to cars on just the power generated from solar panels attached to the ...

The plane, Solar Impulse 2, touched down in the United Arab Emirates capital at 0005 GMT (0405 local time) on Tuesday. It first took off from Abu Dhabi on March 9, 2015, beginning a landmark journey ...

Engineers at SolarStratos are building a plane that will fly higher than any other manned solar-powered aircraft. They’re shooting for 80,000 feet (24km) – high above the clouds and well into the ...