Ooh, fancy:

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

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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