CAPE CANAVERAL, Fla. - On the morning of its planned launch from Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Discovery is closer to launch on the STS-128 mission. Against the shuttle's cockpit is seen the White Room at the end of the orbiter access arm. The White Room provides the astronauts entry into the shuttle. Discovery sits on the mobile launcher platform, which straddles the flame trench below. On either side of the engine nozzles are the tail masts, which provide sev