United Space Alliance USA technician Mike Williams checks a portion of the thermal blanket insulation to be installed in Discovery's nose cap.

United Space Alliance (USA) technician Mike Williams (left) checks a portion of the thermal blanket insulation to be installed in Discovery’s nose cap. Looking from underneath is R. Justin Hopmann, with USA. In the background is Pearl Richardson, also with USA, next to the work stand holding the nose cap, which is under a protective cover. The work is being done in a low bay area outside the Orbiter Processing Facility. Discovery is the orbiter named as the vehicle for Return to Flight with mission STS-114.