G Gaia (rumteleskop) Galileo (amerikansk rumsonde) Genesis (amerikansk rumsonde) GEOS GEOS - 1975 Giotto GOES – Geostationær vejrsatellit Granat
L Landsat LDEF LIFE (Living Interplanetary Flight Experiment) LISA Pathfinder Lunar Prospector Lunar Reconnaissance Orbiter
O OAO OGO Opportunity Orbiting Astronomical Observatory Orbiting Geophysical Observatory Orbiting Solar Observatory OSO
S SAS (Small Astronomy Satellite) satellit SOHO Solar Maximum Mission Spitzer Space Telescope Sputnik Stardust Starlink Syncom
