Pilots Andre Borschberg, co-founder and CEO, and Dr. Bertrand Piccard, chairman, talk with reporters as the Solar Impulse sits in a specially made hangar tent at Dallas Fort Worth International Airport, Thursday May 23, 2013. The solar plane landed early Thursday at Dallas-Fort Worth International Airport after taking off Wednesday from Phoenix. The plane, with a wingspan of 208 feet (as long as a Boeing 747), will be on display Friday and Saturday. (AP Photo/Star-Telegram, Rodger Mallison)

Solar Impulse leaves St. Louis

After 10 days in St. Louis, the first plane that can fly day or night without fuel is on its way to Cincinnati.