EntityQ1475301· pop 23· linked from 580 articlesInternational Cometary ExplorerSign in to saveAmerican magnetospheric research satelliteConnectionsOrbiting Solar ObservatoryEntityVestaEntityapsisEntity21P/Giacobini–ZinnerEntityExplorers ProgramEntityFairchildEntityHalley's CometEntitymagnetosphereEntityPioneer 6, 7, 8, and 9EntitySherman FairchildEntityGermanyCountryEarthConceptSunConceptSolar SystemEntityPlutoEntityKentuckyEntityGoogleOrganizationcometEntitynitrogenEntityNASAConceptCategories1978 in spaceflightArtificial satellites at Earth–Sun Lagrange pointsDerelict space probesExplorers ProgramMissions to cometsNASA space probesSource attributionSpacecraft launched in 1978Spacecraft using halo orbits