KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility bay 3, workers oversee the lowering of the Orbiter Boom Sensor System (OBSS) on the starboard side of Discovery’s payload bay. At lower right is the Remote Manipulator System (RMS), or Shuttle robotic arm. The 50-foot-long OBSS attaches to the RMS, and is one of the new safety measures for Return to Flight, equipping the orbiter with cameras and laser systems to inspect the Shuttle’s Thermal Protection System while in space. The Return to Flight mission, STS-114, has a launch window of May 12 to June 3, 2005.