The Solar-powered Solar Impulse 2 aircraft prepares to take off from the Cairo International Airport in the Egyptian capital on Sunday as it heads to Abu Dhabi on the final leg of its world tour.
Khaled Desouki /AFP/Getty Images
The Solar Impulse 2, piloted by Bertrand Piccard, takes off from John F. Kennedy International Airport in New York on Monday, starting a four-day journey to Southern Spain.
Solar Impulse 2, the solar airplane of Swiss pioneers Bertrand Piccard and Ande Borschberg, in preparation for the take off from Tulsa International Airport, Oklahoma on Saturday.
Solar Impulse 2 pilots Bertrand Piccard (right) and Andre Borschberg celebrate after Piccard landed their solar-powered plane at Moffett Field in Mountain View, Calif., on Saturday.
The Solar Impulse 2 airplane, piloted by Bertrand Piccard, gains altitude after taking off from Kalaeloa Airport in Kapolei, Hawaii during a test and training flight in April.
Eugene Tanner /AFP/Getty Images
The Solar Impulse 2 landed in Hawaii in early July. The team behind the sun-powered airplane says it will be grounded until next spring.
Solar Impulse | Revillard | Rezo/Solar Impulse | Revillard | Rezo
Pilot André Borschberg sent this photo of his flight over Japan; he's now over the Pacific Ocean, heading to Hawaii. He's not expected to land until Friday morning, Eastern time.
Pilot Andre Borschberg of Switzerland sits aboard the Solar Impulse as a ground crew pushes the plane at the airport in Nagoya, Japan, prior to taking off for Hawaii.
Toshifumi Kitamura/AFP/Getty Images
The Solar Impulse takes off from Moffett Field NASA Ames Research Center in Mountain View, Calif., Friday, as a team member rides an electric bike alongside the plane.