The company says it is developing technology to enable its airplanes to eventually spend months cruising at 40,000 feet, ...

Although not the first to try and build a DIY solar-powered remote control airplane, [ProjectAir]’s recent attempt is the most significant one in recent memory. It follows [rctestflight]’s ...

The US Army is testing a new solar-driven drone that can fly for months in the stratosphere, carrying a 150-lb payload and ...

The Oklahoma-headquartered firm on 30 September said the Skydweller UAS successfully conducted a series of autonomous ...

SoftBank said that the aircraft trial conducted by AeroVironment and the US Department of Defense (“DoD”) in New Mexico, the ...

AeroVironment has flown an improved version of its Sunglider solar-powered stratospheric uncrewed aircraft, the Horus A, ...

India has made significant steps in aerospace technology with the development of a solar-powered plane capable of flying continuously for up to 90 days. This achievement places India among the few ...

Horus A received airworthiness approval from the U.S. Army and an FAA Special Airworthiness Certificate to allow flight ...

SoftBank Corp's solar-powered uncrewed aircraft completed a field trial in the stratospheric above New Mexico.

Scientists in India have developed a solar-powered plane that can fly up to 90 days at a time. A smaller version has already been flown successfully for 10 hours — making India one of the only ...

HAP is a solar-powered autonomous unmanned aircraft flying at stratospheric levels and is capable of day-and-night operations at altitudes of 17-20 km with an endurance of months.

For six decades, coal has provided for — and polluted — the Navajo Nation. Demolition of a power plant brings mixed emotions.