The U.S. Navy has awarded Skydweller a $1.4 million contract to support the development of next-generation electric ...

The U.S. Navy has quietly written a small but telling check to a company working on a solar‑electric aircraft that can stay ...

Imagine an aircraft that can stay airborne for weeks, even months, without refueling. This isn't futuristic fantasy. Skydweller Aero is working toward turning this vision into reality with its ...

Thanks to the SolarStratos project by Domjan we could see an aircraft that flies without fuel and can climb into the ...

Latest flight trials take the British-built PHASA-35 High Altitude Pseudo Satellite (HAPS) a step closer to operations in the stratosphere. A British-led team of engineers has taken a leap forward in ...

MOUNTAIN VIEW, Calif. -- The two Swiss pilots taking turns to fly a solar-powered airplane around the world said Sunday the endeavor is not only a demonstration of the importance of renewable energy ...

The Solar Impulse, an airplane traveling across the United States using only solar power, is in Phoenix today, after reaching Arizona from California Saturday. It took the plane about 20 hours to ...

The Navy, working with Skydweller Aero, just reached a major milestone in clean-energy aviation. Its solar-powered drone, known as Skydweller, flew for 73 hours straight without needing fuel. The test ...

ARLINGTON, Va.--(BUSINESS WIRE)-- AeroVironment (AVAV) (AV) flight-tested an upgraded Sunglider™, enhancing its High-Altitude Platform-Station (HAPS) capabilities for commercial and government markets ...

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, ...

H3 Dynamics, a hydrogen aviation specialist, and XSun, a developer of unmanned aerial systems (UAS), both based in France, announced a partnership targeting solar-hydrogen-electric UAS for ...

DAYTON, Ohio (AP) — A solar-powered airplane has landed in Pennsylvania, about 17 hours after it took off from the Ohio hometown of America aviation pioneers Wilbur and Orville Wright. The Swiss-made ...