Launch 'Scrubbed' for Hydrogen Leak, Again

Timelapse of the Service Tower rollback at the pad in preperation for one of the several previous launch attempts. Space shuttle managers have scrubbed Discovery’s launch attempt for today due to a hydrogen leak a the Ground Umbilical Carrier Plate, or GUCP (pronounced GUP). During the process of filling the external tank, the hydrogen leak was detected at the GUCP, an attachment point between the external tank and a 17-inch pipe that carries gaseous hydrogen safely away from Discovery to the flare stack, where it is burned off. NASA managers have decided to launch no earlier than November 30, 2010 at approximately 4:03 AM (NOTE: THIS IS AN EARLY MORNING LAUNCH).