Solar Impulse 2 touches down in Abu Dhabi to complete its round-the-world trip

Solar Impulse 2 touches down in Abu Dhabi to complete its round-the-world trip

Four continents, 24,800 miles, and more than 500 days later, Bertrand Piccard and Andre Borschberg are back where they started. The pair of Swiss pilots completed their round-the-world tour in the Solar Impulse 2 today, landing in Abu Dhabi early this morning.The multiple record-breaking trip was completed without any fuel, trading off flying...