JSC2007-E-053901 (23 Oct. 2007) --- Astronaut Lee J. Archambault, spacecraft communicator (CAPCOM), monitors data at his console in the space shuttle flight control room of Johnson Space Center's Mission Control Center (MCC) during launch countdown activities a few hundred miles away in Florida, site of Space Shuttle Discovery's scheduled STS-120 launch. Liftoff occurred at 11:38 a.m. (EDT) on Oct. 23, 2007 from launch pad 39A at Kennedy Space Center.