EntityQ1341791· pop 15· linked from 135 articlesNational Security Space LaunchSign in to savespace launch vehicle program of the United States Space ForceConnectionsUnited States Space ForceEntitymedium Earth orbitEntityInternational Standard Book NumberEntityWhite HouseConceptSpaceXEntitydigital object identifierEntityBoeingPublic companyLockheed MartinEntitygeostationary orbitEntityFederal Government of the United StatesEntitylow Earth orbitEntitylaunch vehicleEntityFalcon 9Entityeconomic competitionEntitycompetitionEntityUnited States Department of DefenseConceptMcDonnell DouglasEntityFalcon HeavyEntityNorthrop Grumman CorporationEntityliquid oxygenEntityCategoriesExpendable space launch systemsReusable launch systemsSpace launch vehicles of the United States