Timelapse video: The final space shuttle assembled for flight

Two space shuttle solid rocket boosters — reusable space hardware that launched on 81 missions — are being gifted to the California Science Center to become part of the museum’s launch pad display of Endeavour.

A spectacle never seen before — a space shuttle external fuel tank traversing city streets — was witnessed in Los Angeles on Saturday as the relic was moved to the museum that will construct a rocket science attraction.

A Lockheed Martin Atlas 2AS rocket lifts off from Launch Complex 36B at Cape Canaveral on May 19, 2004, carrying the AMC-11 high-definition TV broadcasting satellite. It was the penultimate mission for the Atlas 2AS, which was fitted with four strap-on solid rocket boosters.