NASA closing its original repository for Columbia artifacts to tours https://arstechni.ca/unT2 #ColumbiaResearchandPreservationOffice #ColumbiaLessonsLearnedProgram #OperationsSupportBuilding-1 #vehicleassemblybuilding #ColumbiaLearningCenter #KennedySpaceCenter #Spaceexploration #spacehistory #Challenger #artifacts #wreckage #apollo #debris #Space #OSB-1 #NASA #CLC #VAB