EntityQ429798· pop 5· linked from 14 articlesProject VelaSign in to savesystem developed by the United States to monitor compliance with the Partial Test Ban TreatyConnectionsDefense Advanced Research Projects AgencyEntityUnited States Air ForceEntityPartial Nuclear Test Ban TreatyEntitySolar SystemEntitySoviet UnionConceptearthquakeEntitytsunamiEntitylightningEntityInternational Standard Book NumberEntityatmosphereEntityX-rayEntityelectromagnetismEntityThe New York TimesEntityGlobal Positioning SystemEntityexplosive chemicalsEntityinternational lawEntitydigital object identifierEntityInternational Standard Serial NumberEntitygamma rayEntitymeteoroidEntityCategoriesNuclear weapons policyNuclear weapons program of the United StatesProjects of the United States Air ForceResearch projects