With each of their great achievements, the adventurers of the last century constantly pushed back the limits of the impossible. Today, the drive to make new discoveries must go on, aimed at improving the quality of life on our planet. In building the first solar aircraft able to fly day and night, and piloting it right round the world without fuel or pollution, Solar Impulse's ambition is for the world of exploration and innovation to contribute to the cause of renewable energies, to demonstrate the importance of clean technologies for sustainable development; to save natural resources and reduce our dependency on fossil energy; and to place dreams and emotions back at the heart of scientific adventure.