01955oam 2200577 450 991071728210332120220406101101.0(CKB)5470000002529402(OCoLC)1227395297(OCoLC)995470000002529402(EXLCZ)99547000000252940220201219d2020 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierNASA human space exploration significant investments in future capabilities require strengthened management oversight: report to congressional committeesWashington, DC :United States Government Accountability Office,2020.1 online resource (ii, 38 pages) color illustrations"December 2020.""GAO-21-105."Includes bibliographical references.NASA human space exploration Manned space flightPlanningVol spatial habitéPlanificationDiscoveries in geographyPlanningfastManagementEvaluationfastManned space flightPlanningfastPlanningEvaluationfastOuter spaceExplorationPlanningEspace extra-atmosphériqueExplorationPlanificationOuter spacefastManned space flightPlanning.Vol spatial habitéPlanification.Discoveries in geographyPlanning.ManagementEvaluation.Manned space flightPlanning.PlanningEvaluation.DIDDIDOCLCOOCLCFOCLCQGPOOCLCOGPOBOOK9910717282103321NASA human space exploration3436171UNINA