On the surface, Helios Airways flight 522 seems ominous, as if it had been done on purpose. Why else would oxygen masks have ...

The Helios Horizon, an electric powered experimental aircraft flown by Sarasota-based test pilot and engineer Miguel Iturmendi, captured two world records for aircraft lighter than 500 kilos on June 2 ...

Small US aerospace project Helios Horizon claims to have recently broken the record for the highest-flying multi-seat electric aircraft, which it considers a step on its journey into the stratosphere.

The history of aviation has seen many strange and shocking plane crashes but there are few that are as mysterious as the fate of Helios Airways Flight 522. It became known as the "Greek Ghost Flight" ...

Earth is clearly discernible. The air is so thin–only 1.4 percent of the density at sea level–it is incapable of supporting life. It is also incapable of supporting sustained horizontal flight of an ...

A June 7 shakedown flight of NASA's solar-powered Helios unmanned aerial vehicle (UAV) ended three hours earlier than planned after flight controllers detected a problem with the aircraft's electric ...

Electrical energy from a fuel-cell based system set to drive flying wing for at least 40h NASA is to attempt a record-breaking 40h flight of its Helios prototype flying wing powered by a newly ...

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 ...

An attempt by the unmanned Helios solar-powered aircraft to reach 100,000 feet, possibly by late July, will help prepare for the day when such vehicles will fly routinely in civil airspace. Helios is ...

The history of aviation has seen many strange and shocking plane crashes but there are few that are as mysterious as the fate of Helios Airways Flight 522. It became known as the "Greek Ghost Flight" ...