14 years after its last flight, the Space Shuttle Endeavour was stacked and mated one final time to the twin SRBs and the external tank. This was in preparation for the future display, the only in the world in vertical ready for flight configuration, as part of the future Samuel Oschin Air and Space Center at the California Science Center. #nasaspaceflight #spaceshuttle #spaceshuttleendeavour #goforstack #californiasciencecenter | NASASpaceflight.com