EntityQ1322029· pop 14· linked from 63 articlesProject HARPSign in to savejoint project of the United States Department of Defense and Canada's Department of National DefenceConnectionsUnited States Army Research LaboratoryEntityCanadaCountryBarbadosCountryGrenadaCountrySaint Vincent and the GrenadinesCountryNASAConceptgeographic coordinate systemEntityVietnam WarConceptInternational Standard Book NumberEntityouter spaceEntityequatorEntityartificial satelliteEntityHirundinidaeEntityinfrared radiationEntitydigital object identifierEntitygeodesyEntityionosphereEntityOCLC, Inc.Entityintercontinental ballistic missileEntityJSTOROrganizationCategories1961 establishments in Canada1961 establishments in the United States1962 establishments in BarbadosAbandoned military projects of CanadaAbandoned military projects of the United StatesBarbados–Canada relationsCanada–United States relationsMcGill UniversitySpace guns