World's largest solar-powered boat completes its trip around the world

The TURANOR PlanetSolar, passing through Tahiti earlier on its voyage 

On September 27th of 2010, the world’s largest solar-powered boat – the TÛRANOR PlanetSolar – set out from Monaco on a quest to become the first boat to sail around the world using nothing put the power of the Sun. This afternoon it successfully completed that quest, arriving back in Monaco after 18 months spent circumnavigating the planet.