![World's largest solar-powered plane heads for Nanjing(4/7)](http://www.ecns.cn/hd/2015/04/21/e0392857f11d4719acd4ece4186e5e66.jpg)
Solar Impulse 2 is pushed to a parking apron of Jiangbei International Airport for takeoff in Chongqing Municipality, southwest China, April 21, 2015. Solar Impulse 2, the world's largest solar-powered plane, left Chongqing Tuesday morning and headed for Nanjing, capital of east China's Jiangsu Province. (Photo: Xinhua/Tang Yi)