Orville and Wilbur Wright successfully flew the first heavier-than-air aircraft one hundred and eleven years ago. In 2015 Bertrand Piccard and Andre Borschberg plan to fly a solar powered, fixed-wing aircraft, around the world with only the power provided by the sun (Piccard, along with Brian Jones completed the first non-stop balloon flight around the globe in 1999).
Starting in March of 2015, Solar Impulse 2 will circle the planet in the northern hemisphere, taking around 5 months. The starting and ending point will be Masdar in Abu Dhabi. It's not a non-stop flight; obviously the pilots could not stay aloft long enough to complete the journey. The idea is that they fly an aircraft around the world during day AND night hours without ever 'fueling up;' from the initial charging of the batteries to the end of the flight, the only power comes from stored solar energy.
Solar Impulse 2
These videos are inspiring!
It's the beginning of a new era in powered flight!
For more information:
Wikipedia (another thank you to Wikipedia for aiding my research)
How Solar Aircraft Work
Solar Powered Motorglider