Piccard never intended the vehicle for commercial use, but instead envisioned it as a way to raise awareness for sustainable ...

The experimental plane Solar Impulse 2, which completed a historic round-the-world trip in 2016 without using jet fuel, ...

A small medical plane has crashed outside Ruidoso, New Mexico, killing all four people aboard. Lincoln County Manager Jason Burns says the cause of the crash Thursday morning remains unknown.

Solar Impulse 2, the aircraft that completed the first solar-powered global flight in 2016, crashed in the Gulf of Mexico ...

The crash occurred nearly a decade after the unmanned, solar-powered plane completed its historic flight around the world without fuel ...