At each major premiere, the adventurers of the last century pushed back the limits of the impossible. Today, human and technical enquiry must go on, with a view to improving the quality of life for humanity. By writing the next pages in the history of aviation with solar energy, as far as a flight around the world without fuel or pollution is concerned, Solar Impulse's ambition is to contribute in the world of exploration and innovation to the cause of renewable energies. To demonstrate the importance of the new technologies in sustainable development, and of course, once again, to place dream and emotion at the heart of scientific adventure.