Ooh, fancy:

A lightweight solar-powered plane has smashed the official world record for the longest-duration unmanned flight.

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The plane flew for 54 hours, through two sunless nights, and was controlled remotely from the ground and by autopilot. And manned (excuse us, personed) flights are on the horizon: A Swiss man has plans to circumnavigate the globe aboard a solar-powered plane in 2010.

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