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 ...

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

The U.S. Navy has awarded Skydweller a $1.4 million contract to develop electric propulsion as it explores all-electric ...

The Falcon Solar looks like a superhero’s jet, running exclusively on solar power and shaped like the bird of prey it’s named after. Despite having no visible propulsion system for takeoff, and no ...

The U.S. Navy is pushing the boundaries of stealth and solar energy with a recent $14 million commission of an unmanned, sun-powered aircraft that can stay in the air continuously for up to 90 days.

YANGON, Myanmar A solar-powered plane landed in Myanmar on Thursday night, the latest leg of a round-the-world trip aimed at highlighting clean energy. Dozens of trees had to be cleared ahead of the ...

The notion that kerosene will be fully replaced by hydrogen one day, when all commercial aircraft will be emissions-free, is still highly controversial. Even though big names in the aerospace industry ...

On a summer afternoon high above the Swiss Alps, Raphaël Domjan stared out at a commercial airliner flying below him. At 9,500 meters (31,000 feet), Domjan was alone in a featherlight aircraft powered ...

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 Solar Impulse 2 ...

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 ...

If everything goes right one of the first solar-powered aircraft will take to the skies in 2009 in an attempt to fly around the world with nothing but the sun for fuel. The prototype “will be a first ...

PAYERNE, Switzerland (Reuters) - A giant glider-like aircraft has completed the first night flight propelled only by solar energy, organizers said on Thursday. Solar Impulse, whose wingspan is the ...