MASSIVE Skydweller solar drone flies for days on end without recharging

With a 236-foot wingspan that’s wider than a 747’s, the battery and solar-powered Skydweller Aero drone is pushing the boundaries of aviation. And, after back-to-back three-day flights without recharging, it’s pushing the boundaries of energy efficiency, too, begging the question: is perpetual aviation really here?

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