A pair of space shuttle solid rocket booster sit inside a temporary storage area at NASA's Kennedy Space Center.

A pair of 149-foot-long, space shuttle solid rocket booster, or SRB, displays from the Kennedy Space Center Visitor Complex sit inside a temporary storage area at NASA's Kennedy Space Center. The SRBs were part of a display of the external tank and two SRBs at the visitor complex that were used to show visitors the size of actual space shuttle components. A space shuttle rode piggyback on the tank and boosters at liftoff and during the ascent into space. The SRBs burned out after about two-and-a-half minutes of flight. After recovery from the ocean, the boosters could be used repeatedly. Photo credit: NASA/ Dmitri Gerondidakis