Solar Impulse team reveals plans for unmanned plane

Solar Impulse team reveals plans for unmanned plane

The groundbreaking Swiss pilots unveiled their new project.

Swiss solar plane sets off on penultimate leg

Swiss solar plane sets off on penultimate leg

Swiss solar plane continues historic trip

Swiss solar plane continues historic trip

Solar Impulse plane heads to US in jumbo jet

Solar Impulse plane heads to US in jumbo jet

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Solar plane heads abroad for first time