Launch of Endeavour Shuttle Postponed Hours Before Liftoff

CAPE CANAVERAL, FL - APRIL 29: Space Shuttle Endeavour STS-134 crew (L-R) Specialist Greg Chamitoff, Specialist Andrew Feustel, Roberto Vittori, Specialist Michael Fincke, Pilot Greg H Johnson, and Commander Mark Kelly wave to the crowd before boarding the Astrovan minutes before a launch attempt was scrubbed at the Kennedy Space Center April 29, 2011 in Cape Canaveral, Florida. Endeavour's final launch, which had been schedualed for 3:47 p.m., has reportedly been delayed by at least 48 hours due to technical problems. (Photo by Tom Pennington/Getty Images) Photo: Tom Pennington/2011 Getty Images

NASA was compelled to postpone the launch of the shuttle Endeavour today, a mere four hours before its scheduled liftoff. Officials say a delay of at least three days is needed to fix heaters that are used in the equipment that powers both the movement of both the shuttle’s engines and the flaps during the shuttle's ride into space. The crowd of hundreds of thousands — gathered to witness what was supposed to be the second-to-last takeoff in the shuttle program — were frustrated. On her doctors' permission, Gabrielle Giffords was also in attendance to witness her husband, mission commander Mark E. Kelly. No word yet on whether the state of her recovery will permit her to attend the new launch date, which would occur Monday at the earliest. [NYT]