Here are entered works on artificial satellites in general and on the satellites orbiting around Earth. Works on artificial satellites of other celestial bodies are entered under Artificial satellites subdivided by the name of the body, e.g. Artificial satellites--Sun.This heading may be subdivided geographically only by names of celestial bodies. --names of individual artificial satellites
Comics set in an uncertain future, in a society ruled by an ineffectual, corrupt, or oppressive regime or by aliens, robots, etc. For comics set in a world or civilization after a catastrophic event (e.g., nuclear war, an alien invasion), sometimes also including the period immediately preceding the event see Apocalyptic comics.
Fiction set in an uncertain future, in a society ruled by an ineffectual, corrupt, or oppressive regime or by aliens, robots, etc. For fiction set in a world or civilization after a catastrophic event (e.g., nuclear war, alien invasion, pandemic, environmental collapse), sometimes also including the period immediately preceding the event, see Apocalyptic fiction.
Here are entered works on active immunization with a vaccine. Works on any process, active or passive, that leads to increased immunity are entered under Immunization. --subdivision Vaccination under individual diseases and types of diseases and individual animals and groups of animals, e.g. Tuberculosis--Vaccination; Cattle--Vaccination
