It may have experienced a devastating crash nine years ago, but you can relive the life of the Helio Prototype unmanned aircraft thanks to a series of NASA photos. It may have experienced a ...

The remotely operated Helios Prototype aircraft was destroyed when it crashed into the Pacific Ocean, June 26. Helios, a proof-of-concept solar-electric flying wing, was designed to operate at ...

The sky is black 100,000 feet above ground, and you can clearly see the curvature of the Earth. The air is so thin it is incapable of supporting life. It is also incapable of supporting sustained ...

An elongated flying wing, covered with solar panels and powered by 14 propeller motors not much stronger than hair dryers, climbed to 96,500 feet Monday, shattering a flight record that seemed ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In this historical photo from the U.S. space agency, the Helios Prototype is an enlarged version ...

The solar-electric Helios Prototype flying wing is shown moments after takeoff, beginning its first test flight on solar power from the U.S. Navy's Pacific Missile Range Facility on Kauai, Hawaii, ...

The unmanned Helios solar-powered aircraft prototype reached the record-setting altitude of 96,500 feet in a 17-hour flight from the Hawaiian island of Kauai. The flight, according to backers of the ...

AeroEnvironment’s newest drone will mirror its prior creation, the Helios Prototype. A race is on to build a fleet of solar-powered drones that beam internet down to the Earth beneath them, and the ...