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From left, Moroccan Ambassador in Switzerland Mohammed Said Benryane, Solar Impulse's founder, chairman and pilot Bertrand Piccard, second from left, Swiss Federal Councillor and Foreign Minister Didier Burkhalter, second from right, his wife Sabine Friedrun, right, Solar Impulse's Chief Executive Officer and pilot Andre Borschberg, behind, speak before the experimental aircraft "Solar Impulse", HB-SIA, takes off for its first intercontinental flight to Morocco at the airbase in Payerne, Switzerland, Thursday, May 24, 2012. Solar-powered aircraft Solar Impulse, the zero fuel airplane, makes its first intercontinental trip with final destination Rabat (Morocco). The prototype will land in Madrid (Spain) for a technical layover, as well as to change pilots. The Solar Impulse project aims to circumnavigate the world with an aircraft, with a 63.40 metres wingspan, powered only by solar energy. (KEYSTONE/Laurent Gillieron)