Piccard never intended the vehicle for commercial use, but instead envisioned it as a way to raise awareness for sustainable energy by building the first solar-powered plane capable of ...

Solar Impulse 2, a solar‑powered plane built in Switzerland, has been destroyed after crashing in the Gulf of Mexico.

Humanity has always dreamed of creating a kind of aircraft that’s capable of staying airborne indefinitely. Ok, maybe not humanity per se, but those of us who are into waging war or protecting borders ...

Solar Impulse 2, the pioneering aircraft known for the first round-the-world solar flight, was lost during an uncrewed flight, ending its decade-long journey in the skies.

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 ...

The solar-powered aircraft Solar Impulse 2 has been completely destroyed after crashing into the Gulf of Mexico following a loss of power, according to a ...