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The zero-fuel aeroplane, Solar Impulse 2, has landed in the southern Spanish city of Seville to complete its historic Atlantic crossing.
Pilot Bertrand Piccard made swift progress over the ocean after leaving New York on Monday.
The flight was the 15th stage in Solar Impulse's bid to circumnavigate the globe.
The Solar Impulse 2 has a 72m wingspan, wider than a Boeing 747, and carries over 17,000 solar cells. During daylight, the solar panels charge the plane's batteries, which make up a quarter of the craft's 2.3 tonne weight. The pilot also climbs to 29,000 feet during the day and glides down to 5,000 feet during the night, to conserve power. The plane flies at about 30mph, although it can go faster if the sun is bright.
Source: Solar Impulse
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