VIDEO: "Solar Impulse Completes First-Ever 24-Hour Flight" [1]
"Plane powered entirely by the sun lands safely in Switzerland after completing its first 24-hour test flight, proving that aircraft can stay airborne during the night using energy gathered from the sun by day"
The UK Guardian had the story July 8, 2010. [2]
Energy & Fuel [3]
Technology [4]
International [5]
Public [6]
Source: Guardian [2], 07/09/2010