A solar plane with wings as wide as a 747 and the power of a small motorboat took to the skies for the first time Wednesday, cruising a mile high at bicycle-like speeds for nearly 1½ hours in a step ...

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The Solar Impulse 2, which is entirely powered by solar energy, is attempting to fly from Nagoya, Japan, to Hawaii. The flight will take approximately five days. CNET contributor Don Reisinger is a ...

The 70 million-euro project has been conducting flea-hop tests since December, taking the plane no higher than 60 centimeters (2 feet) in altitude and 300 meters (1,000 feet) in distance. A night ...

It isn’t easy getting a new plane certified and flying — let alone an autonomous one, and electric at that. But Pyka has done just that, clearly impressing the powers that be enough to raise a $37 ...

Hydrogen-electric plane developer ZeroAvia has snagged some additional financial security as it looks to continue development of its zero-emissions flight technology that should one day enable flights ...