Solar Impulse's Chief Executive Officer and pilot Andre Borschberg takes off in the solar-powered HB-SIA prototype airplane for its first night flight attempt near Payerne airport Wednesday July 7, 2010. The propeller plane, with a 200-foot wingspan, is powered by four electric motors and designed to fly day and night by saving surplus energy from its 12,000 solar cells in high-performance batteries. (Denis Balibouse,Pool/AP Photo)