Solar Craft Flies Through Two Nights
An anonymous reader writes "A solar-powered, unmanned craft has flown for 54 hours — a record for both unmanned aerial vehicles and solar craft. None before has managed to store enough solar energy to fly through more than one night. There is also a video showing the 18m carbon fiber wing craft being launched."
A series of halogen lights mounted along the wings are illuminated at night to power the solar array.
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