In the wee hours of the morning, the Solar Impulse 2 took from Cairo, embarking on the last leg of its round-the-world journey. The 17th and final part of the trip is set to end in Abu Dhabi, where it first set off from in March 2015. The last leg of the journey is anticipated to take around 48 hours, at which point pilots Bertrand Piccard and Andre Borschberg will have flown a total of… Read More...