KENNEDY SPACE CENTER, FLA. - In the back transfer aisle of the Orbiter Processing Facility bay 3, Todd Dugan, a technician with United Space Alliance, checks out the Thermal Protection System (TPS) blanket wrapped around the Orbiter Boom Sensor System (OBSS). The installation of the insulation concludes TPS closeout prior to installation of the boom in the orbiter Discovery. The OBSS is one of the new safety measures for Return to Flight, equipping the Shuttle with cameras and laser systems to inspect the Shuttle’s Thermal Protection System while in space. Discovery is designated as the Return to Flight vehicle for mission STS-114, with a launch window of May 12 to June 3, 2005.