A Solar-Powered Drone Designed To Fly For Five Years Nonstop

If a drone never had to land, it could track hurricanes, spot pirates and smugglers, follow animal migrations, and even act as an auxiliary GPS. In essence, it would be a geostationary satellite without the expense of going to space. Later this year, the company Titan Aerospace will test a drone that could do just that. The Solara 50, named for its 50-meter wingspan, will fly at 65,000 feet--above most other aircraft and above weather that could disturb its flight and block the sun, its source o...