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	    <topic authority="Vocabulario General de la Biblioteca Nacional de Maestros">Astronomía</topic>
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        <related type="narrower">
        <topic>Astrofísica</topic>
    </related>
        <related type="narrower">
        <topic>Astronomía antigua</topic>
    </related>
        <related type="narrower">
        <topic>Centros espaciales</topic>
    </related>
        <related type="narrower">
        <topic>Cosmografía</topic>
    </related>
        <related type="narrower">
        <topic>Cosmología</topic>
    </related>
        <related type="narrower">
        <topic>Cuerpos celestes</topic>
    </related>
        <related type="narrower">
        <topic>Exploración espacial</topic>
    </related>
        <related type="narrower">
        <topic>Historia de la astronomía</topic>
    </related>
        <related type="narrower">
        <topic>Mecánica celeste</topic>
    </related>
        <related type="narrower">
        <topic>Observatorios astronómicos</topic>
    </related>
        <related type="narrower">
        <topic>Telescopios</topic>
    </related>
        <related type="narrower">
        <topic>Universo</topic>
    </related>
    
            <related type="broader">
        <topic>Tierra y espacio</topic>
    </related>
    
    
        <variant type="other">
        <topic>Ciencias del espacio</topic>
    </variant>
        <variant type="other">
        <topic>Ciencias espaciales</topic>
    </variant>
    
    	<note type='source' xml:lang="es">UNESCO</note>
    
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