NASA Makes Final Preparations For Launch Of Space Shuttle Discovery

CAPE CANAVERAL, FL - MARCH 11: Mission Management Team Chair Mike Moses speaks to the media about the delay in the launch of the Space Shuttle Discovery due to a leak in the external fuel tanks March 11, 2009 in Cape Canaveral, Florida. As ground crews began filling the shuttle's orange external fuel tank for launch, they discovered a leak in the gaseous hydrogen storage area in a part called the ground umbilical carrier plate. (Photo by Eliot J. Schechter/Getty Images)