EntityQ7398540· pop 7· linked from 43 articlessafe modeSign in to savecontingency operating mode of a spacecraft in which non-essential systems are shut down and vehicle preservation is the top priorityConnectionsSpiritEntitySunConceptMarsEntityMercuryEntitySaturnEntityPlutoEntityNASAConceptCNNEntityWayback MachineEntityspacecraftEntityHubble Space TelescopeEntitydigital object identifierEntityThe Washington PostEntityNew HorizonsEntitycosmic radiationEntityCassini−HuygensEntitygyroscopeEntityIapetusEntityKepler Space TelescopeEntityQ16711EntityCategoriesSpaceflight concepts