A space shuttle Solid Rocket Booster (SR [Getty Images]

KENNEDY SPACE CENTER, UNITED STATES: A space shuttle Solid Rocket Booster (SRB) aft skirt with first booster segment attached sits ready for installation on a mobile launch platform 22 November 2004 in the Vehicle Assembly Building (VAB) at the Kennedy Space Center, in Florida. at the Kennedy Space Center, in Florida. NASA is preparing for return to flight of the space shuttle in early to mid 2005 . AFP PHOTO / BRUCE WEAVER (Photo credit should read BRUCE WEAVER/AFP via Getty Images)

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