Solar-Powered Airplane Takes Flight: Today's Pic

Photographer: Laurent Gillieron/Keystone/AP Photo

Photographer: Laurent Gillieron/Keystone/AP Photo

The experimental "Solar Impulse" lifts off today for its first intercontinental flight to Morocco, from an airbase in Payerne, Switzerland. The aircraft's backers aim to circumnavigate the world powered only by energy harnessed from the sun.

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