Solar Impulse 2 left New York.
This aircraft, developed by two Swiss engineers, is powered by solar energy through sun collectors located on its wings.
The very light aircraft can only carry one person. This is why the two pilots and engineers are making a turnover at every step. For this trip, it is Bertrand Piccard who is in charge.
The aircraft has now to cross the Atlantic Ocean in order to reach Sevilla (Spain).
The crossing would take four days because the plane flies at an average of 45 km/h (28 mph/h) and up to 90 km/h (56 mph/h) when it is exposed to direct sunlight.
This is the longest step that the plane should make in its world tour that will end soon in Abu Dhabi.