NASA astronaut Barry "Butch" Wilmore, Commander of Expedition 42 on Feb, 21, 2015 is caught by the camera as the Earth's surface passes by in the background. Wilmore and fellow astronaut Terry Virts (seen in the visor's reflection) completed a 6-hour, 41-minute spacewalk routing more than 300 feet of cable as part of a reconfiguration of the International Space Station to enable U.S. commercial crew vehicles under development to dock to the space station in the coming years.