Solar Plane Completes Historic Round-the-World Flight

The Solar Impulse 2 has become the first plane to complete a round-the-world trip powered only by the sun's energy.

Solar Plane Leaves Cairo on Last Leg of Flight Around World

Solar Impulse 2, an aircraft powered only by the sun's rays, took off from Cairo Sunday morning on what should be the last leg of its history-making flight around the world.

Solar Impulse 2 may take off Sunday from Cairo in 'most technically challenging' flight of world tour

Solar Impulse 2's final 48-hour flight from Cairo to Abu Dhabi may take begin on Sunday at 1:00 AM Cairo time, a “provisional time” for a trip that will be the most technically challenging of the round-the-world tour, Solar Impulse announced Friday.